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联想ThinkPad T490笔记本电脑评测：一台装配核显的长续航商务本

Benjamin Herzig, 👁 Andreas Osthoff (translated by Zewei Shen), 08/10/2019
Laptop / Notebook ThinkPad Ultrabook Whiskey Lake Windows Business

没有独显更好？ 我们对ThinkPad T490已经很熟悉了，上个月才刚刚评测了该型号的独显版本。现在是时候让只有核显的型号接受我们的测试，但是如果没有独显，它的性能又如何？ 请继续阅读我们的详细评测，了解相关信息。

Lenovo ThinkPad T490-20N2004EGE (ThinkPad T490 Series)
Processor
Intel Core i5-8265U
Graphics adapter
Intel UHD Graphics 620
Memory
8192 MB 
, DDR4 2400，板载内存
Display
14 inch 16:9, 1920 x 1080 pixel 157 PPI, NE140FHM-N61, IGZO IPS LED, glossy: no
Mainboard
Intel Cannon Lake-U PCH-LP Premium
Storage
Toshiba KXG5AZNV256G, 256 GB 
, M.2 2280, PCIe NVMe, 213 GB free
Soundcard
Intel Cannon Lake-LP - cAVS
Connections
3 USB 3.0 / 3.1 Gen1, 1 USB 3.1 Gen2, 1 Thunderbolt, 1 HDMI, 2 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: 3.5 mm立体声插孔, Card Reader: microSD, 1 SmartCard, 1 Fingerprint Reader
Networking
Intel Ethernet Connection I219-V (10/100/1000/2500/5000MBit/s), Intel Wireless-AC 9560 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 5.0, Fibocom L830-EB, LTE, GPS
Size
height x width x depth (in mm): 18.9 x 329 x 227
Battery
50 Wh Lithium-Polymer
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: HD网络摄像头
Additional features
Speakers: 2W扬声器, Keyboard: 六排背光键盘, Keyboard Light: yes, Lenovo Vantage, Microsoft Office trial, 36 Months Warranty
Weight
1.443 kg, Power Supply: 345 g
Price
6999元 ~ 1520 Euro
Links
Lenovo homepage
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Size Comparison

337 mm 233 mm 20 mm 1.8 kg331 mm 226.8 mm 18.45 mm 1.4 kg331 mm 220.9 mm 17.9 mm 1.6 kg329 mm 227 mm 18.9 mm 1.4 kg329 mm 225.8 mm 16.1 mm 1.3 kg326 mm 234 mm 17.9 mm 1.5 kg
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Dell Latitude 7490
  (Toshiba Exceria Pro M501 UHS-II)
137.6 MB/s ∼100% +78%
Lenovo ThinkPad T480s-20L8S02D00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
81.2 MB/s ∼59% +5%
Lenovo ThinkPad T480-20L6S01V00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
77.8 MB/s ∼57% +1%
Lenovo ThinkPad T490-20N2004EGE
  (Toshiba Exceria Pro M501 64 GB UHS-II)
77.4 MB/s ∼56%
Lenovo ThinkPad T490s-20NYS02A00
  (Toshiba Exceria Pro M501)
68.3 MB/s ∼50% -12%
Average of class Office
  (10.2 - 191, n=285)
62.1 MB/s ∼45% -20%
maximum AS SSD Seq Read Test (1GB)
Dell Latitude 7490
  (Toshiba Exceria Pro M501 UHS-II)
203.2 MB/s ∼100% +146%
Lenovo ThinkPad T480s-20L8S02D00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
89.9 MB/s ∼44% +9%
Lenovo ThinkPad T490s-20NYS02A00
  (Toshiba Exceria Pro M501)
87.8 MB/s ∼43% +6%
Lenovo ThinkPad T480-20L6S01V00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
86.4 MB/s ∼43% +5%
Lenovo ThinkPad T490-20N2004EGE
  (Toshiba Exceria Pro M501 64 GB UHS-II)
82.5 MB/s ∼41%
Average of class Office
  (9.5 - 255, n=260)
78.2 MB/s ∼38% -5%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Dell Latitude 7490
Intel Dual Band Wireless-AC 8265
650 MBit/s ∼100% +1%
Lenovo ThinkPad T490s-20NYS02A00
Intel Wireless-AC 9560
648 MBit/s ∼100% +1%
Lenovo ThinkPad T490-20N2004EGE
Intel Wireless-AC 9560
642 MBit/s ∼99%
Lenovo ThinkPad T480-20L6S01V00
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
625 MBit/s ∼96% -3%
Lenovo ThinkPad T480s-20L8S02D00
Intel Dual Band Wireless-AC 8265
618 MBit/s ∼95% -4%
Average of class Office
  (5 - 1334, n=231)
472 MBit/s ∼73% -26%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo ThinkPad T490s-20NYS02A00
Intel Wireless-AC 9560
667 MBit/s ∼100% +1%
Lenovo ThinkPad T490-20N2004EGE
Intel Wireless-AC 9560
662 MBit/s ∼99%
Lenovo ThinkPad T480-20L6S01V00
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
520 MBit/s ∼78% -21%
Lenovo ThinkPad T480s-20L8S02D00
Intel Dual Band Wireless-AC 8265
519 MBit/s ∼78% -22%
Dell Latitude 7490
Intel Dual Band Wireless-AC 8265
513 MBit/s ∼77% -23%
Average of class Office
  (34 - 1176, n=231)
448 MBit/s ∼67% -32%
421
cd/m²		426
cd/m²		408
cd/m²
397
cd/m²		428
cd/m²		393
cd/m²
407
cd/m²		416
cd/m²		389
cd/m²
Distribution of brightness
NE140FHM-N61
X-Rite i1Pro 2
Maximum: 428 cd/m² Average: 409.4 cd/m² Minimum: 5.2 cd/m²
Brightness Distribution: 91 %
Center on Battery: 428 cd/m²
Contrast: 1476:1 (Black: 0.29 cd/m²)
ΔE Color 4.6 | 0.6-29.43 Ø6, calibrated: 2
ΔE Greyscale 5.4 | 0.64-98 Ø6.2
92.2% sRGB (Argyll 3D) 60% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.09
Lenovo ThinkPad T490-20N2004EGE
NE140FHM-N61, , 1920x1080, 14		Lenovo ThinkPad T490-20N3S02L00
NE140FHM-N61, , 1920x1080, 14		Lenovo ThinkPad T490s-20NYS02A00
B140HAN05.7, , 1920x1080, 14		HP EliteBook 840 G5-3JX61EA
IVO M140NVF7 R0, , 1920x1080, 14		Dell Latitude 7490
AUO503D (D04YD_B140HAN), , 1920x1080, 14		Lenovo ThinkPad T480-20L6S01V00
Lenovo LP140WF6-SPB7, , 1920x1080, 14
Response Times
-2%
13%
42%
36%
48%
Response Time Grey 50% / Grey 80% *
71.2 (33.2, 38)
74 (33.6, 40.4)
-4%
61.6 (30.8, 30.8)
13%
33 (15, 18)
54%
41.6 (22, 19.6)
42%
35.6 (17.6, 18)
50%
Response Time Black / White *
44.8 (21.2, 23.6)
45.6 (22.8, 22.8)
-2%
38.8 (21.2, 17.6)
13%
26 (15, 11)
42%
32 (16.4, 15.6)
29%
24.8 (13.2, 11.6)
45%
PWM Frequency
2427 (50)
2451 (50)
1%
3125 (90)
29%
Screen
1%
15%
3%
-11%
-38%
Brightness middle
428
418
-2%
391
-9%
655
53%
308.6
-28%
307
-28%
Brightness
409
400
-2%
389
-5%
630
54%
294
-28%
295
-28%
Brightness Distribution
91
88
-3%
87
-4%
93
2%
89
-2%
90
-1%
Black Level *
0.29
0.24
17%
0.23
21%
0.56
-93%
0.23
21%
0.25
14%
Contrast
1476
1742
18%
1700
15%
1170
-21%
1342
-9%
1228
-17%
Colorchecker DeltaE2000 *
4.6
4.7
-2%
3.4
26%
3.27
29%
6.07
-32%
5.7
-24%
Colorchecker DeltaE2000 max. *
8.2
8.7
-6%
4.7
43%
5.92
28%
10.58
-29%
21.3
-160%
Colorchecker DeltaE2000 calibrated *
2
2.1
-5%
1.1
45%
3.22
-61%
1.67
16%
4.7
-135%
Greyscale DeltaE2000 *
5.4
5.9
-9%
4
26%
2.85
47%
7.3
-35%
3.7
31%
Gamma
2.09 105%
2.06 107%
2.49 88%
2.45 90%
2.061 107%
2.11 104%
CCT
7562 86%
7350 88%
6809 95%
6065 107%
7269 89%
7353 88%
Color Space (Percent of AdobeRGB 1998)
60
59.9
0%
62.4
4%
57
-5%
62
3%
37.4
-38%
Color Space (Percent of sRGB)
92.2
92.1
0%
97.4
6%
88
-5%
97
5%
58.7
-36%
Total Average (Program / Settings)
-1% / 0%
14% / 15%
23% / 11%
13% / -4%
5% / -25%

* ... smaller is better

Display Response Times

ℹ
Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
   ↔    Response Time Black to White
44.8 ms ... rise ↗ and fall ↘ combined↗ 21.2 ms rise
↘ 23.6 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 98 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.9 ms).
   ↔    Response Time 50% Grey to 80% Grey
71.2 ms ... rise ↗ and fall ↘ combined↗ 33.2 ms rise
↘ 38 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 98 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (39.6 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ
To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 2427 Hz ≤ 50 % brightness setting

The display backlight flickers at 2427 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 50 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 2427 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 13539 (minimum: 43 - maximum: 2500000) Hz was measured.

HWiNFO
HWiNFO
CPU-Z
CPU-Z
CPU-Z Caches
CPU-Z Caches
CPU-Z Mainboard
CPU-Z Mainboard
GPU-Z
GPU-Z
LatencyMon
LatencyMon
 
 
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690Tooltip
Lenovo ThinkPad T490-20N2004EGE Intel Core i5-8265U, Intel Core i5-8265U: Ø617 (613-650)
Lenovo ThinkPad T490-20N3S02L00 Intel Core i7-8565U, Intel Core i7-8565U: Ø639 (632-673)
Lenovo ThinkPad T490s-20NYS02A00 Intel Core i5-8265U, Intel Core i5-8265U: Ø584 (566.02-686.12)
HP EliteBook 840 G5-3JX61EA Intel Core i7-8550U, Intel Core i7-8550U: Ø526 (517.01-554.05)
Dell Latitude 7490 Intel Core i5-8350U, Intel Core i5-8350U: Ø531 (519.92-595.49)
Cinebench R15
CPU Single 64Bit
Lenovo ThinkPad T490-20N3S02L00
Intel Core i7-8565U
180 Points ∼100% +10%
HP EliteBook 840 G5-3JX61EA
Intel Core i7-8550U
167 Points ∼93% +2%
Lenovo ThinkPad T490-20N2004EGE
Intel Core i5-8265U
163 Points ∼91%
Lenovo ThinkPad T490s-20NYS02A00
Intel Core i5-8265U
162 Points ∼90% -1%
Lenovo ThinkPad T480-20L6S01V00
Intel Core i7-8550U
161 Points ∼89% -1%
Average Intel Core i5-8265U
  (111 - 164, n=31)
155 Points ∼86% -5%
Dell Latitude 7490
Intel Core i5-8350U
153 Points ∼85% -6%
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
143 Points ∼79% -12%
Average of class Office
  (20 - 199, n=544)
113 Points ∼63% -31%
CPU Multi 64Bit
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
724 Points ∼100% +17%
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
716 Points ∼99% +16%
Lenovo ThinkPad T490s-20NYS02A00
Intel Core i5-8265U
686 (min: 566.02, max: 686.12) Points ∼95% +11%
Lenovo ThinkPad T490-20N3S02L00
Intel Core i7-8565U
680 (min: 592.15, max: 661.89) Points ∼94% +10%
Lenovo ThinkPad T480-20L6S01V00
Intel Core i7-8550U
657 Points ∼91% +6%
Lenovo ThinkPad T490-20N2004EGE
Intel Core i5-8265U
617 (min: 613, max: 658) Points ∼85%
Average Intel Core i5-8265U
  (457 - 750, n=34)
594 Points ∼82% -4%
Dell Latitude 7490
Intel Core i5-8350U
569 Points ∼79% -8%
HP EliteBook 840 G5-3JX61EA
Intel Core i7-8550U
554 Points ∼77% -10%
Average of class Office
  (36 - 1050, n=551)
346 Points ∼48% -44%
Cinebench R15 CPU Multi 64Bit
617 Points
Cinebench R15 OpenGL 64Bit
44.89 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 CPU Single 64Bit
163 Points
Help
PCMark 10 | PCMark 8
PCMark 10
Digital Content Creation
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
3778 Points ∼100% +24%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3258 Points ∼86% +7%
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
3210 Points ∼85% +6%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
3036 Points ∼80%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
3004 Points ∼80% -1%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
2954 Points ∼78% -3%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (2067 - 3210, n=25)
2929 Points ∼78% -4%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
2911 Points ∼77% -4%
Average of class Office
  (320 - 4461, n=161)
2665 Points ∼71% -12%
Productivity
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
7392 Points ∼100% +22%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
6651 Points ∼90% +9%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
6500 Points ∼88% +7%
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
6441 Points ∼87% +6%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
6083 Points ∼82%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (2941 - 6556, n=25)
6048 Points ∼82% -1%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
5739 Points ∼78% -6%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
5721 Points ∼77% -6%
Average of class Office
  (1266 - 7964, n=161)
5494 Points ∼74% -10%
Essentials
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
8361 Points ∼100% +12%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
8236 Points ∼99% +10%
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
7981 Points ∼95% +7%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (5073 - 8689, n=25)
7796 Points ∼93% +4%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
7471 Points ∼89%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
7376 Points ∼88% -1%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
7358 Points ∼88% -2%
Average of class Office
  (2683 - 9790, n=161)
6998 Points ∼84% -6%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
6423 Points ∼77% -14%
Score
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
4341 Points ∼100% +17%
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
3985 Points ∼92% +8%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
3906 Points ∼90% +5%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
3704 Points ∼85%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (2247 - 3985, n=25)
3702 Points ∼85% 0%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3686 Points ∼85% 0%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
3602 Points ∼83% -3%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
3564 Points ∼82% -4%
Average of class Office
  (803 - 4644, n=162)
3284 Points ∼76% -11%
PCMark 8
Work Score Accelerated v2
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
5277 Points ∼100% +9%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
5025 Points ∼95% +4%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
5004 Points ∼95% +4%
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
4927 Points ∼93% +2%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
4906 Points ∼93% +2%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
4824 Points ∼91%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (3132 - 4927, n=21)
4665 Points ∼88% -3%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
4508 Points ∼85% -7%
Average of class Office
  (1226 - 5428, n=355)
4033 Points ∼76% -16%
Home Score Accelerated v2
Lenovo ThinkPad T490s-20NYS02A00
UHD Graphics 620, 8265U, Intel SSD Pro 7600p SSDPEKKF512G8L
4244 Points ∼100% +24%
Lenovo ThinkPad T490-20N3S02L00
GeForce MX250, 8565U, Toshiba XG5 KXG50ZNV512G
4052 Points ∼95% +18%
HP EliteBook 840 G5-3JX61EA
UHD Graphics 620, 8550U, Toshiba KXG50ZNV1T02
3966 Points ∼93% +15%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
3723 Points ∼88% +8%
Lenovo ThinkPad T480-20L6S01V00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3675 Points ∼87% +7%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
3503 Points ∼83% +2%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (2747 - 4244, n=22)
3444 Points ∼81% 0%
Lenovo ThinkPad T490-20N2004EGE
UHD Graphics 620, 8265U, Toshiba KXG5AZNV256G
3436 Points ∼81%
Average of class Office
  (1169 - 4770, n=415)
3061 Points ∼72% -11%
PCMark 8 Home Score Accelerated v2
3436 points
PCMark 8 Work Score Accelerated v2
4824 points
Help
Lenovo ThinkPad T490-20N2004EGE
Toshiba KXG5AZNV256G		Dell Latitude 7490
Toshiba KSG60ZMV256G		Lenovo ThinkPad T480s-20L8S02D00
Samsung SSD PM981 MZVLB512HAJQ		Lenovo ThinkPad T480-20L6S01V00
Samsung SSD PM981 MZVLB512HAJQ		Lenovo ThinkPad T490s-20NYS02A00
Intel SSD Pro 7600p SSDPEKKF512G8L		HP EliteBook 840 G5-3JX61EA
Toshiba KXG50ZNV1T02		Lenovo ThinkPad T490-20N3S02L00
Toshiba XG5 KXG50ZNV512G		Average Toshiba KXG5AZNV256G
 
CrystalDiskMark 5.2 / 6
-56%
17%
-2%
8%
-5%
12%
-10%
Write 4K
119.9
79.41
-34%
155.37
30%
153.1
28%
122.03
2%
96.09
-20%
126.6
6%
115 (111 - 120, n=2)
-4%
Read 4K
39.94
27.37
-31%
47.61
19%
48.3
21%
45.56
14%
31.12
-22%
43.61
9%
38.2 (36.5 - 39.9, n=2)
-4%
Write Seq
1334
343.9
-74%
1623.59
22%
866.3
-35%
1497.34
12%
919.3
-31%
1342
1%
908 (482 - 1334, n=2)
-32%
Read Seq
1357
472.7
-65%
1345.56
-1%
903.9
-33%
2385.23
76%
2089
54%
1251
-8%
1391 (1357 - 1425, n=2)
3%
Write 4K Q32T1
311.2
206
-34%
340.71
9%
424.6
36%
240.94
-23%
425.6
37%
297.7
-4%
333 (311 - 356, n=2)
7%
Read 4K Q32T1
400.6
188.3
-53%
449.28
12%
403.2
1%
338.03
-16%
275.3
-31%
376.4
-6%
403 (401 - 406, n=2)
1%
Write Seq Q32T1
1642
343.3
-79%
1965.4
20%
1725
5%
1528.4
-7%
958.3
-42%
2969
81%
1069 (495 - 1642, n=2)
-35%
Read Seq Q32T1
2778
532.6
-81%
3398.3
22%
1780
-36%
2915
5%
3118
12%
3228
16%
2278 (1777 - 2778, n=2)
-18%
CrystalDiskMark 3.0
CrystalDiskMark 5.2 / 6
AS SSD
hddimg
Toshiba KXG5AZNV256G
Sequential Read: 1491 MB/s
Sequential Write: 1388 MB/s
512K Read: 1096 MB/s
512K Write: 413.1 MB/s
4K Read: 39.72 MB/s
4K Write: 168 MB/s
4K QD32 Read: 558.1 MB/s
4K QD32 Write: 408.5 MB/s
3DMark 11 | 3DMark
3DMark 11 - 1280x720 Performance GPU
Lenovo ThinkPad T490-20N3S02L00
NVIDIA GeForce MX250, Intel Core i7-8565U
4748 Points ∼100% +176%
Lenovo ThinkPad T480-20L6S01V00
NVIDIA GeForce MX150, Intel Core i7-8550U
4300 Points ∼91% +150%
HP EliteBook 840 G5-3JX61EA
Intel UHD Graphics 620, Intel Core i7-8550U
1849 Points ∼39% +8%
Lenovo ThinkPad T490s-20NYS02A00
Intel UHD Graphics 620, Intel Core i5-8265U
1839 Points ∼39% +7%
Lenovo ThinkPad T490-20N2004EGE
Intel UHD Graphics 620, Intel Core i5-8265U
1718 Points ∼36%
Average Intel UHD Graphics 620
  (1235 - 2006, n=175)
1718 Points ∼36% 0%
Dell Latitude 7490
Intel UHD Graphics 620, Intel Core i5-8350U
1648 Points ∼35% -4%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, Intel Core i5-8250U
1633 Points ∼34% -5%
Average of class Office
  (185 - 5332, n=666)
1334 Points ∼28% -22%
3DMark
2560x1440 Time Spy Graphics
Lenovo ThinkPad T490-20N3S02L00
NVIDIA GeForce MX250, Intel Core i7-8565U
1134 Points ∼100%
Average of class Office
  (76 - 1164, n=60)
495 Points ∼44%
Average Intel UHD Graphics 620
  (299 - 433, n=35)
361 Points ∼32%
1920x1080 Fire Strike Graphics
Lenovo ThinkPad T490-20N3S02L00
NVIDIA GeForce MX250, Intel Core i7-8565U
3863 Points ∼100% +283%
Lenovo ThinkPad T480-20L6S01V00
NVIDIA GeForce MX150, Intel Core i7-8550U
3585 Points ∼93% +256%
HP EliteBook 840 G5-3JX61EA
Intel UHD Graphics 620, Intel Core i7-8550U
1336 Points ∼35% +33%
Lenovo ThinkPad T490s-20NYS02A00
Intel UHD Graphics 620, Intel Core i5-8265U
1336 Points ∼35% +33%
Average Intel UHD Graphics 620
  (557 - 1401, n=146)
1128 Points ∼29% +12%
Average of class Office
  (138 - 4109, n=486)
1027 Points ∼27% +2%
Lenovo ThinkPad T490-20N2004EGE
Intel UHD Graphics 620, Intel Core i5-8265U
1008 Points ∼26%
Dell Latitude 7490
Intel UHD Graphics 620, Intel Core i5-8350U
1001 Points ∼26% -1%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, Intel Core i5-8250U
963 Points ∼25% -4%
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad T490-20N3S02L00
NVIDIA GeForce MX250, Intel Core i7-8565U
23354 Points ∼100% +176%
Lenovo ThinkPad T480-20L6S01V00
NVIDIA GeForce MX150, Intel Core i7-8550U
21893 Points ∼94% +159%
Lenovo ThinkPad T490s-20NYS02A00
Intel UHD Graphics 620, Intel Core i5-8265U
10881 Points ∼47% +29%
HP EliteBook 840 G5-3JX61EA
Intel UHD Graphics 620, Intel Core i7-8550U
10331 Points ∼44% +22%
Average Intel UHD Graphics 620
  (6910 - 11436, n=164)
9144 Points ∼39% +8%
Lenovo ThinkPad T490-20N2004EGE
Intel UHD Graphics 620, Intel Core i5-8265U
8448 Points ∼36%
Dell Latitude 7490
Intel UHD Graphics 620, Intel Core i5-8350U
7943 Points ∼34% -6%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, Intel Core i5-8250U
7658 Points ∼33% -9%
Average of class Office
  (1208 - 27117, n=531)
7115 Points ∼30% -16%
3DMark 11 Performance
1847 points
3DMark Cloud Gate Standard Score
7289 points
3DMark Fire Strike Score
937 points
Help
low med. high ultra
BioShock Infinite (2013) 53.04 28.33 22.93 fps
The Witcher 3 (2015) 15 fps
Dota 2 Reborn (2015) 64 38.2 18 15.9 fps
Rise of the Tomb Raider (2016) 21.14 11.9 fps
X-Plane 11.11 (2018) 23.6 15.9 14.3 fps

Noise Level

Idle
28.8 / 28.8 / 31.7 dB(A)
Load
34 / 36.1 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
  
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 28.8 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2027.532.931.230.230.630.12526.225.824.726.825.825.73125.528.229.824.728.329.94025.125.126.725.227.128.15025.12325.123.423.226.36324.323.124.922.122.322.78023.922.122.621.722.922.510022.822.422.522.222.521.712523.92322.822.323.522.516022.320.520.921.821.621.12002221.120.321.722.62125021.121.521.721.221.421.131521.121.320.420.420.52040021.520.620.720.22020.250021.320.920.319.719.42063022.521.721.120.418.420.480022.721.620.519.518.219.7100024.122.420.72017.520.2125023.721.819.919.117.319.6160024.122.319.81916.419.6200023.221.118.818.315.918.5250023.421.519.218.615.518.9315026.423.820.619.715.720.2400027.925.722.119.815.421.3500025.322.318.317.315.317.8630021.318.516.51615.216.4800018.716.615.815.515.215.61000017.415.715.315.215.115.21250015.615.115.114.915151600015.215.115.214.814.614.9SPL36.13431.730.928.831.3N2.31.91.61.41.21.5median 22.5median 21.5median 20.3median 19.7median 17.3median 20Delta1.41.31.71.42.71.430.726.429.330.629.230.325.12626.127.329.931.1313131.927.727.429.531.427.222.824.72430.625.923.225.82422.225.124.523.222.422.4262222.322.822.322.521.921.52221.622.222.62222.521.321.722.822.923.222.622.323.122.724.521.82321.82221.321.521.622.321.921.421.32222.821.621.52022.323.622.121.419.823.524.522.821.618.724.224.722.32118.224.423.821.720.417.723.624.722.420.417252522.920.716.625.124.422.119.916.12426.724.32115.926.729.526.621.815.729.127.622.418.715.526.921.919.217.515.521.719.317.416.615.518.918.216.616.415.417.716.5161615.116.316.315.91614.915.837.234.732.429.4372.62.11.71.22.5median 22.8median 22.1median 21median 17.7median 22.51.41.41.62.51.3hearing rangehide median Fan NoiseLenovo ThinkPad T490-20N2004EGELenovo ThinkPad T490-20N3S02L00
Max. Load
 36.9 °C37.4 °C34.1 °C 
 34.1 °C37 °C41.1 °C 
 28.2 °C30 °C29.6 °C 
Maximum: 41.1 °C
Average: 34.3 °C
41.3 °C49.3 °C42.1 °C
38.9 °C41.7 °C38.5 °C
26.8 °C27.9 °C26.9 °C
Maximum: 49.3 °C
Average: 37 °C
Power Supply (max.)  34.8 °C | Room Temperature 20.7 °C | Voltcraft IR-900
(±) The average temperature for the upper side under maximal load is 34.3 °C / 94 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(±) The maximum temperature on the upper side is 41.1 °C / 106 F, compared to the average of 33.9 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 49.3 °C / 121 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 22.6 °C / 73 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 30 °C / 86 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.1 °C / 82.6 F (-1.9 °C / -3.4 F).
Power Consumption
Off / Standbydarklight 0.28 / 0.43 Watt
Idledarkmidlight 2.34 / 5.22 / 8.82 Watt
Load midlight 35.8 / 47.3 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Lenovo ThinkPad T490-20N2004EGE
8265U, UHD Graphics 620, Toshiba KXG5AZNV256G, IGZO IPS LED, 1920x1080, 14		Lenovo ThinkPad T490-20N3S02L00
8565U, GeForce MX250, Toshiba XG5 KXG50ZNV512G, IGZO IPS LED, 1920x1080, 14		Lenovo ThinkPad T490s-20NYS02A00
8265U, UHD Graphics 620, Intel SSD Pro 7600p SSDPEKKF512G8L, IPS, 1920x1080, 14		Dell Latitude 7490
8350U, UHD Graphics 620, Toshiba KSG60ZMV256G, IPS, 1920x1080, 14		Lenovo ThinkPad T480s-20L8S02D00
8250U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ, IPS, 2560x1440, 14		Lenovo ThinkPad T480-20L6S01V00
8550U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS, 1920x1080, 14		HP EliteBook 840 G5-3JX61EA
8550U, UHD Graphics 620, Toshiba KXG50ZNV1T02, IPS, 1920x1080, 14		Average Intel UHD Graphics 620
 		Average of class Office
 
Power Consumption
-21%
-11%
14%
-31%
-44%
-24%
-18%
-79%
Idle Minimum *
2.34
2.16
8%
2.62
-12%
2
15%
3.1
-32%
3.6
-54%
3.8
-62%
3.84 (1 - 12.4, n=186)
-64%
7.53 (2.34 - 32, n=980)
-222%
Idle Average *
5.22
5.04
3%
5.16
1%
4.7
10%
6.8
-30%
7.1
-36%
8.3
-59%
7.04 (3.7 - 15.5, n=186)
-35%
11.3 (4.2 - 42, n=980)
-116%
Idle Maximum *
8.82
8.64
2%
8.7
1%
5.7
35%
10.1
-15%
9.5
-8%
10.7
-21%
8.82 (3.8 - 16.6, n=186)
-0%
13.7 (4.9 - 67, n=980)
-55%
Load Average *
35.8
63.2
-77%
40
-12%
38.4
-7%
48.4
-35%
63.9
-78%
35.5
1%
35.2 (8.1 - 51.6, n=186)
2%
37.2 (7.43 - 99.3, n=965)
-4%
Load Maximum *
47.3
67.5
-43%
64
-35%
38.9
18%
67.1
-42%
67.3
-42%
37
22%
45 (22 - 79, n=186)
5%
46 (12.2 - 129, n=967)
3%
Witcher 3 ultra *
50
53.9

* ... smaller is better

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3 (Edge)
9h 32min
Big Buck Bunny H.264 1080p
11h 17min
Load (maximum brightness)
2h 41min
Lenovo ThinkPad T490-20N2004EGE
8265U, UHD Graphics 620, 50 Wh		Lenovo ThinkPad T490-20N3S02L00
8565U, GeForce MX250, 50 Wh		Lenovo ThinkPad T490s-20NYS02A00
8265U, UHD Graphics 620, 57 Wh		Dell Latitude 7490
8350U, UHD Graphics 620, 60 Wh		Lenovo ThinkPad T480s-20L8S02D00
8250U, UHD Graphics 620, 57 Wh		Lenovo ThinkPad T480-20L6S01V00
8550U, GeForce MX150, 72 Wh		HP EliteBook 840 G5-3JX61EA
8550U, UHD Graphics 620, 50 Wh		Average of class Office
 
Battery Runtime
-27%
-3%
-4%
-8%
11%
-22%
-33%
Reader / Idle
1671
574 (101 - 2100, n=801)
H.264
677
523
-23%
834
23%
721
6%
638
-6%
437 (139 - 862, n=184)
-35%
WiFi v1.3
572
543
-5%
607
6%
548
-4%
537
-6%
794
39%
444
-22%
417 (105 - 1104, n=361)
-27%
Load
161
75
-53%
99
-39%
124
-23%
159
-1%
101 (37 - 259, n=757)
-37%

Pros

+ 坚固的高品质机身
+ 比前代产品更紧凑，更轻巧
+ 各种接口
+ 非常舒适的输入设备
+ 明亮多彩的低功耗FHD屏幕
+ 高于平均的CPU性能
+ 风扇大部分不运转
+ 续航时间长
+ 三年保修

Cons

- D面难拆开
- 半速雷电3
- 屏幕响应时间慢
- 缺少可更换电池
- 没有全尺寸SD卡读卡器
The Lenovo ThinkPad T490-20N2004EGE laptop review. Test device courtesy of notebooksandmore.de.
The Lenovo ThinkPad T490-20N2004EGE laptop review. Test device courtesy of notebooksandmore.de.

无论有没有独显，联想ThinkPad T490都是一款出色的商用笔记本电脑。没有独显的型号在某些领域比带独显的ThinkPad T490稍好一些，它将整体评级从我们给配备MX250的同型号产品的90％提升到91％。

除此之外，我们的评测单元比独显版ThinkPad T490具有更好的续航时间。前者比后者温度更低，并且不会受到恼人的扬声器噪音的影响。联想在很大程度上通过BIOS更新消除了这一点，所以它不应该影响任何ThinkPad T490 SKU。

此外，核显版本的T490由于较弱的CPU，在进行压力测试时也不会受到限制。而其他T490的亮点仍然存在，例如坚固轻巧的外壳，梦幻般的输入设备以及明亮且色彩准确的显示屏。我们也很欣赏多种接口选择和高于平均的CPU性能。

然而，两种型号都存在很大的相同缺点。低功耗屏幕的响应时间很短，而只包含microSD卡读卡器而不是全尺寸卡读卡器似乎有些失策。同样，虽然我们喜欢联想为其配备的雷电3端口，但我们无法理解为什么只允许它使用两个PCIe通道。此外，拆卸和重新组装外壳是一件痛苦的事情，而可拆卸电池的缺乏使得T490的灵活性低于其前代产品。

更低温，更持久：联想ThinkPad T490的核显版在某些领域比独显版更好，是一款出色的商务笔记本电脑。

总的来说，核显版的T490对于那些不需要GeForce MX250带来的附加图形功能的人来说应该足够了。如果您偶尔喜欢下班后玩游戏或需要可以处理视频编辑的笔记本电脑，那么带有独显的T490在我们看来是更好的选择。

Lenovo ThinkPad T490-20N2004EGE - 10/22/2019 v7
Benjamin Herzig

Chassis
84 / 98 → 86%
Keyboard
93%
Pointing Device
91%
Connectivity
74 / 80 → 93%
Weight
70 / 20-75 → 90%
Battery
88%
Display
88%
Games Performance
48 / 78 → 61%
Application Performance
81 / 95 → 85%
Temperature
91%
Noise
95%
Audio
40%
Camera
37 / 85 → 44%
Average
75%
88%
Office - Weighted Average

Linked Articles

Lenovo ThinkPad T490-20N2004EGE (ThinkPad T490 Series)
Review
•
联想ThinkPad T490（i7, MX250, 低功耗...

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> Notebookcheck中文版（NBC中国） > 评测 > 联想ThinkPad T490笔记本电脑评测：一台装配核显的长续航商务本
Benjamin Herzig, 2019-08-10 (Update: 2019-08-10)