Notebookcheck

联想Yoga Book C930(i5-7Y54, LTE, E-Ink)二合一笔记本评测

Christian Hintze, 👁 Sebastian Jentsch (translated by Zewei Shen), 01/25/2019
Convertible / 2-in-1 Laptop / Notebook Touchscreen

“三合一”。 新的Yoga Book配备了一块电子墨水屏而,不是一块实体键盘,我们可以认为这是笔记本电脑,平板电脑和电子阅读器的组合。最重要的是,您还可以使用这个多面手来进行数字化文本书写和绘图。该设备与其2016年的前身在设计上基本相同,但提供了许多变化和改进,例如,它提供了更好的性能,但也至少放弃了一个功能。2018年的Yoga Book值得旧版本的两倍价格吗?在我们的详细测试中找到答案。

Lenovo Yoga Book C930 YB-J912F (Yoga Book Series)
Processor
Intel Core i5-7Y54
Graphics adapter
Memory
4096 MB 
, DDR3-1866
Display
10.8 inch 16:9, 2560 x 1660 pixel 283 PPI, 电容屏, native pen support, BOE 0765, IPS, 360度平板模式, glossy: yes
Mainboard
Intel Kaby Lake-Y Premium PCH
Storage
Toshiba KBG30ZMT256G, 256 GB 
, 196 GB free
Soundcard
Intel Kaby Lake-U/Y PCH - High Definition Audio
Connections
2 USB 3.0 / 3.1 Gen1, Card Reader: microSD, 1 Fingerprint Reader, Brightness Sensor, Sensors: 光感器,加速传感器, 陀螺仪, 霍尔传感器, 两个USB-C 3.0
Networking
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter (a/b/g/n/ac), Bluetooth 4.2, LTE
Size
height x width x depth (in mm): 9.9 x 261 x 179
Battery
36 Wh Lithium-Polymer, Battery runtime (according to manufacturer): 8.5 h
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: 200万像素
Primary Camera: 2 MPix
Additional features
Speakers: 立体声扬声器, Keyboard: Virtual, Keyboard Light: no, E-Ink Mobius™ FHD-Display & Bluetooth-Pen, Microsoft OneNote, Lenovo Vantage, Microsoft RDX, Dolby Atmos, E Ink Keyboard, E Ink Note, E Ink Reader, E Ink Settings, 24 Months Warranty, fanless
Weight
778 g, Power Supply: 100 g
Price
1500 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Size Comparison

293 mm 210 mm 9 mm 1.1 kg292.1 mm 201.4 mm 8.5 mm 1.1 kg279 mm 194 mm 7 mm 1.1 kg261 mm 179 mm 9.9 mm 778 g256.6 mm 170.8 mm 9.6 mm 695 g
Left: USB-C 3.1 (Gen1), LTE/MicroSD slot, speakers
Left: USB-C 3.1 (Gen1), LTE/MicroSD slot, speakers
Right: volume rocker, speakers, power button, USB-C 3.1 (Gen1)
Right: volume rocker, speakers, power button, USB-C 3.1 (Gen1)
Back: hinge
Back: hinge
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad X1 Tablet Gen 2
Intel Dual Band Wireless-AC 8265
586 MBit/s ∼100% +19%
Microsoft Surface Pro (2017) m3
Marvell AVASTAR Wireless-AC Network Controller
550 MBit/s ∼94% +12%
Lenovo Yoga Book C930 YB-J912F
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
491 (min: 446, max: 517) MBit/s ∼84%
Average of class Convertible
  (28.7 - 678, n=133)
483 MBit/s ∼82% -2%
Huawei Matebook E
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
437 MBit/s ∼75% -11%
iperf3 Client (transmit) TCP 1 m 4M x10
Microsoft Surface Pro (2017) m3
Marvell AVASTAR Wireless-AC Network Controller
655 MBit/s ∼100% +7%
Lenovo Yoga Book C930 YB-J912F
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
612 (min: 449, max: 687) MBit/s ∼93%
Huawei Matebook E
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
592 MBit/s ∼90% -3%
Average of class Convertible
  (36.4 - 685, n=133)
492 MBit/s ∼75% -20%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Dual Band Wireless-AC 8265
440 MBit/s ∼67% -28%
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø491 (446-517)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø612 (449-687)
364
cd/m²
327
cd/m²
315
cd/m²
342
cd/m²
351
cd/m²
332
cd/m²
329
cd/m²
338
cd/m²
344
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 364 cd/m² Average: 338 cd/m² Minimum: 6.3 cd/m²
Brightness Distribution: 87 %
Center on Battery: 351 cd/m²
Contrast: 1526:1 (Black: 0.23 cd/m²)
ΔE Color 4.59 | 0.6-29.43 Ø6.1, calibrated: 3.26
ΔE Greyscale 5.2 | 0.64-98 Ø6.3
100% sRGB (Argyll 3D) 74% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.41
Lenovo Yoga Book C930 YB-J912F
BOE 0765, , 2560x1660, 10.8
Microsoft Surface Pro (2017) m3
LG Display LP123WQ112604, , 2736x1826, 12.3
Huawei Matebook E
Chi Mei CMN7801, , 2160x1440, 12
Lenovo ThinkPad X1 Tablet Gen 2
LSN120QL01L01, , 2160x1440, 12
Lenovo Yoga Book 2016 Windows 64GB LTE
nicht auslesbar, Farbgamut: 70% lt. Hersteller, , 1920x1080, 10.1
Response Times
-1%
30%
25%
8%
Response Time Grey 50% / Grey 80% *
43 (23, 20)
42 (20, 22)
2%
26 (10, 16)
40%
28.4 (15.2, 13.2)
34%
36 (18, 18)
16%
Response Time Black / White *
27 (13, 14)
28 (18, 10)
-4%
22 (12, 10)
19%
22.8 (13.6, 9.2)
16%
27 (6, 21)
-0%
PWM Frequency
221.2 (49)
Screen
10%
-2%
-14%
-2%
Brightness middle
351
461
31%
439
25%
388.1
11%
382
9%
Brightness
338
444
31%
428
27%
344
2%
363
7%
Brightness Distribution
87
93
7%
92
6%
78
-10%
83
-5%
Black Level *
0.23
0.34
-48%
0.35
-52%
0.39
-70%
0.37
-61%
Contrast
1526
1356
-11%
1254
-18%
995
-35%
1032
-32%
Colorchecker DeltaE2000 *
4.59
3.43
25%
5.17
-13%
4.6
-0%
3.61
21%
Colorchecker DeltaE2000 max. *
9.81
5.55
43%
7.68
22%
9.1
7%
7.92
19%
Colorchecker DeltaE2000 calibrated *
3.26
Greyscale DeltaE2000 *
5.2
3.08
41%
5.69
-9%
6.1
-17%
3.77
27%
Gamma
2.41 91%
3.03 73%
2.42 91%
2.07 106%
2.43 91%
CCT
7712 84%
7014 93%
7999 81%
7104 91%
6760 96%
Color Space (Percent of AdobeRGB 1998)
74
64
-14%
71
-4%
59
-20%
Color Space (Percent of sRGB)
100
99
-1%
100
0%
91
-9%
Total Average (Program / Settings)
5% / 9%
14% / 4%
6% / -8%
3% / 0%

* ... smaller is better

Display Response Times

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
27 ms ... rise ↗ and fall ↘ combined↗ 13 ms rise
↘ 14 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 54 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (25.3 ms).
       Response Time 50% Grey to 80% Grey
43 ms ... rise ↗ and fall ↘ combined↗ 23 ms rise
↘ 20 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. » 60 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (40.3 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

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 not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9524 (minimum: 43 - maximum: 142900) Hz was measured.

0102030405060708090100110120130140150160170180190200210220230240250260270Tooltip
Lenovo Yoga Book C930 YB-J912F Intel Core i5-7Y54, Intel Core i5-7Y54: Ø199 (173.03-236.42)
Microsoft Surface Pro (2017) m3 Intel Core m3-7Y30, Intel Core m3-7Y30: Ø209 (160.17-256.05)
Huawei Matebook E Intel Core i5-7Y54, Intel Core i5-7Y54: Ø250 (246.95-261.8)
Lenovo ThinkPad X1 Tablet Gen 2 Intel Core i5-7Y54, Intel Core i5-7Y54: Ø209 (204.92-240.58)
Cinebench R15
CPU Single 64Bit
Huawei Matebook E
Intel Core i5-7Y54
124 Points ∼100% +7%
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
116 Points ∼94%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
115 Points ∼93% -1%
Average Intel Core i5-7Y54
  (111 - 124, n=7)
115 Points ∼93% -1%
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
108 Points ∼87% -7%
Average of class Convertible
  (19 - 179, n=288)
103 Points ∼83% -11%
Lenovo Yoga Book 2016 Windows 64GB LTE
Intel Atom x5-Z8550
36 Points ∼29% -69%
CPU Multi 64Bit
Average of class Convertible
  (33 - 761, n=295)
288 Points ∼100% +23%
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
258 Points ∼90% +10%
Huawei Matebook E
Intel Core i5-7Y54
254 Points ∼88% +9%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
234 Points ∼81% 0%
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
234 Points ∼81%
Average Intel Core i5-7Y54
  (205 - 257, n=7)
230 Points ∼80% -2%
Lenovo Yoga Book 2016 Windows 64GB LTE
Intel Atom x5-Z8550
134 Points ∼47% -43%
Cinebench R11.5
CPU Single 64Bit
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
1.41 Points ∼100%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
1.32 Points ∼94% -6%
Average Intel Core i5-7Y54
  (1.27 - 1.41, n=4)
1.318 Points ∼93% -7%
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
1.24 Points ∼88% -12%
Average of class Convertible
  (0.24 - 2.01, n=217)
1.119 Points ∼79% -21%
CPU Multi 64Bit
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
2.85 Points ∼100% +13%
Average of class Convertible
  (0.45 - 8.56, n=226)
2.8 Points ∼98% +11%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
2.57 Points ∼90% +2%
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
2.53 Points ∼89%
Average Intel Core i5-7Y54
  (2.27 - 2.57, n=5)
2.42 Points ∼85% -4%
Cinebench R10
Rendering Single CPUs 64Bit
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
6248 Points ∼100%
Average Intel Core i5-7Y54
  (5545 - 6248, n=3)
5813 Points ∼93% -7%
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
5253 Points ∼84% -16%
Average of class Convertible
  (919 - 8397, n=119)
4522 Points ∼72% -28%
Rendering Multiple CPUs 64Bit
Microsoft Surface Pro (2017) m3
Intel Core m3-7Y30
11264 Points ∼100% +7%
Lenovo Yoga Book C930 YB-J912F
Intel Core i5-7Y54
10501 Points ∼93%
Average Intel Core i5-7Y54
  (8756 - 10501, n=3)
9646 Points ∼86% -8%
Average of class Convertible
  (1689 - 31667, n=118)
9633 Points ∼86% -8%
Cinebench R10 Shading 64Bit
6211 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
10501 Points
Cinebench R10 Rendering Single CPUs 64Bit
6248 Points
Cinebench R11.5 CPU Multi 64Bit
2.53 Points
Cinebench R11.5 OpenGL 64Bit
26.75 fps
Cinebench R11.5 CPU Single 64Bit
1.41 Points
Cinebench R15 CPU Single 64Bit
116 Points
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 OpenGL 64Bit
34.97 fps
Cinebench R15 CPU Multi 64Bit
234 Points
Help
PCMark 10
Digital Content Creation
Average of class Convertible
  (605 - 4342, n=85)
2425 Points ∼100% +58%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
1837 Points ∼76% +19%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (1538 - 1718, n=2)
1628 Points ∼67% +6%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
1538 Points ∼63%
Productivity
Average of class Convertible
  (1121 - 7077, n=87)
5139 Points ∼100% +29%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (3969 - 4176, n=2)
4073 Points ∼79% +3%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
4051 Points ∼79% +2%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
3969 Points ∼77%
Essentials
Average of class Convertible
  (2489 - 9291, n=87)
6799 Points ∼100% +13%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (6033 - 6320, n=2)
6177 Points ∼91% +2%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
6033 Points ∼89%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
5762 Points ∼85% -4%
Score
Average of class Convertible
  (872 - 4347, n=88)
3095 Points ∼100% +30%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
2509 Points ∼81% +5%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (2385 - 2556, n=2)
2471 Points ∼80% +4%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
2385 Points ∼77%
PCMark 8
Work Score Accelerated v2
Lenovo ThinkPad X1 Tablet Gen 2
HD Graphics 615, 7Y54, Samsung PM961 MZVLW256HEHP
4288 Points ∼100% +32%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (3244 - 4288, n=3)
3869 Points ∼90% +19%
Average of class Convertible
  (1007 - 5281, n=217)
3683 Points ∼86% +14%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
3586 Points ∼84% +11%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
3244 Points ∼76%
Lenovo Yoga Book 2016 Windows 64GB LTE
HD Graphics 400 (Braswell), Z8550, 64 GB eMMC Flash
1247 Points ∼29% -62%
Home Score Accelerated v2
Lenovo ThinkPad X1 Tablet Gen 2
HD Graphics 615, 7Y54, Samsung PM961 MZVLW256HEHP
3092 Points ∼100% +39%
Huawei Matebook E
HD Graphics 615, 7Y54, SanDisk SD8SN8U256G1027
2979 Points ∼96% +33%
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
2896 Points ∼94% +30%
Average Intel Core i5-7Y54, Intel HD Graphics 615
  (2232 - 3092, n=7)
2823 Points ∼91% +26%
Average of class Convertible
  (741 - 4741, n=264)
2761 Points ∼89% +24%
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
2232 Points ∼72%
Lenovo Yoga Book 2016 Windows 64GB LTE
HD Graphics 400 (Braswell), Z8550, 64 GB eMMC Flash
1296 Points ∼42% -42%
PCMark 8 Home Score Accelerated v2
2232 points
PCMark 8 Work Score Accelerated v2
3244 points
Help
Lenovo Yoga Book C930 YB-J912F
Toshiba KBG30ZMT256G
Microsoft Surface Pro (2017) m3
Samsung PM971 KUS020203M
Huawei Matebook E
SanDisk SD8SN8U256G1027
Lenovo ThinkPad X1 Tablet Gen 2
Samsung PM961 MZVLW256HEHP
Lenovo Yoga Book 2016 Windows 64GB LTE
64 GB eMMC Flash
Average Toshiba KBG30ZMT256G
 
CrystalDiskMark 3.0
-19%
-24%
36%
-88%
8%
Write 4k QD32
165.6
172
4%
184.4
11%
259
56%
13.79
-92%
230 (166 - 295, n=2)
39%
Read 4k QD32
270.9
301.8
11%
381.8
41%
247.9
-8%
33.6
-88%
410 (271 - 549, n=2)
51%
Write 4k
90.84
98.76
9%
65.3
-28%
120
32%
11.56
-87%
94.5 (90.8 - 98.1, n=2)
4%
Read 4k
44.39
40.11
-10%
32.46
-27%
52.34
18%
13.34
-70%
48.2 (44.4 - 51.9, n=2)
9%
Write 512
665.2
241
-64%
294.7
-56%
869
31%
26.58
-96%
583 (501 - 665, n=2)
-12%
Read 512
721
261.1
-64%
341.9
-53%
697.5
-3%
102.6
-86%
653 (585 - 721, n=2)
-9%
Write Seq
759.2
669.9
-12%
461
-39%
1259
66%
34.39
-95%
678 (598 - 759, n=2)
-11%
Read Seq
879.9
690.5
-22%
506.1
-42%
1739
98%
120.5
-86%
844 (808 - 880, n=2)
-4%
AS SSD
-5%
-39%
106%
-93%
1%
Copy Game MB/s
254.54
140.69
-45%
302.75
19%
330 (255 - 405, n=2)
30%
Copy Program MB/s
94.34
83.82
-11%
320.8
240%
130 (94.3 - 165, n=2)
38%
Copy ISO MB/s
448.1
173.16
-61%
693.57
55%
490 (448 - 532, n=2)
9%
Score Total
1526
1847
21%
890
-42%
4470
193%
1616 (1526 - 1706, n=2)
6%
Score Write
403
284
-30%
230
-43%
812
101%
441 (403 - 478, n=2)
9%
Score Read
749
1053
41%
439
-41%
2465
229%
786 (749 - 822, n=2)
5%
Access Time Write *
0.176
0.04
77%
0.075
57%
0.028
84%
0.202 (0.176 - 0.228, n=2)
-15%
Access Time Read *
0.057
0.074
-30%
0.107
-88%
0.054
5%
0.1095 (0.057 - 0.162, n=2)
-92%
4K-64 Write
231.66
144.25
-38%
149.56
-35%
597.8
158%
273 (232 - 314, n=2)
18%
4K-64 Read
581.83
891.36
53%
359.7
-38%
2207.86
279%
612 (582 - 643, n=2)
5%
4K Write
91.62
88.56
-3%
60.47
-34%
125.81
37%
90.9 (90.3 - 91.6, n=2)
-1%
4K Read
43.38
38.82
-11%
30.43
-30%
44.11
2%
45.5 (43.4 - 47.6, n=2)
5%
Seq Write
797.05
514.35
-35%
202.05
-75%
886.85
11%
28.76
-96%
766 (735 - 797, n=2)
-4%
Seq Read
1240.52
1225.84
-1%
489.83
-61%
2130.09
72%
128.38
-90%
1278 (1241 - 1316, n=2)
3%
Total Average (Program / Settings)
-12% / -10%
-32% / -33%
71% / 81%
-91% / -89%
5% / 4%

* ... smaller is better

Toshiba KBG30ZMT256G
Sequential Read: 879.9 MB/s
Sequential Write: 759.2 MB/s
512K Read: 721 MB/s
512K Write: 665.2 MB/s
4K Read: 44.39 MB/s
4K Write: 90.84 MB/s
4K QD32 Read: 270.9 MB/s
4K QD32 Write: 165.6 MB/s
3DMark 11 - 1280x720 Performance GPU
Lenovo Yoga Book C930 YB-J912F
Intel HD Graphics 615, Intel Core i5-7Y54
1267 Points ∼100%
Huawei Matebook E
Intel HD Graphics 615, Intel Core i5-7Y54
1256 Points ∼99% -1%
Microsoft Surface Pro (2017) m3
Intel HD Graphics 615, Intel Core m3-7Y30
1251 Points ∼99% -1%
Average Intel HD Graphics 615
  (1032 - 1384, n=14)
1233 Points ∼97% -3%
Average of class Convertible
  (173 - 7483, n=316)
1217 Points ∼96% -4%
Lenovo ThinkPad X1 Tablet Gen 2
Intel HD Graphics 615, Intel Core i5-7Y54
1161 Points ∼92% -8%
Lenovo Yoga Book 2016 Windows 64GB LTE
Intel HD Graphics 400 (Braswell), Intel Atom x5-Z8550
418 Points ∼33% -67%
3DMark
1920x1080 Fire Strike Graphics
Average of class Convertible
  (132 - 5965, n=225)
984 Points ∼100% +19%
Average Intel HD Graphics 615
  (647 - 965, n=11)
830 Points ∼84% 0%
Lenovo Yoga Book C930 YB-J912F
Intel HD Graphics 615, Intel Core i5-7Y54
826 Points ∼84%
Microsoft Surface Pro (2017) m3
Intel HD Graphics 615, Intel Core m3-7Y30
748 Points ∼76% -9%
Lenovo ThinkPad X1 Tablet Gen 2
Intel HD Graphics 615, Intel Core i5-7Y54
728 Points ∼74% -12%
1280x720 Cloud Gate Standard Graphics
Average of class Convertible
  (1023 - 37388, n=276)
6547 Points ∼100% +2%
Average Intel HD Graphics 615
  (5478 - 7839, n=13)
6502 Points ∼99% +1%
Lenovo Yoga Book C930 YB-J912F
Intel HD Graphics 615, Intel Core i5-7Y54
6430 Points ∼98%
Lenovo ThinkPad X1 Tablet Gen 2
Intel HD Graphics 615, Intel Core i5-7Y54
6164 Points ∼94% -4%
Microsoft Surface Pro (2017) m3
Intel HD Graphics 615, Intel Core m3-7Y30
6096 Points ∼93% -5%
Lenovo Yoga Book 2016 Windows 64GB LTE
Intel HD Graphics 400 (Braswell), Intel Atom x5-Z8550
2455 Points ∼37% -62%
3DMark 11 Performance
1367 points
3DMark Cloud Gate Standard Score
4893 points
3DMark Fire Strike Score
747 points
Help
low med. high ultra
The Elder Scrolls V: Skyrim (2011) 35.1187.9fps
Tomb Raider (2013) 61.428.918.4fps
Rocket League (2017) 26.4fps
Lenovo Yoga Book C930 YB-J912F
HD Graphics 615, 7Y54, Toshiba KBG30ZMT256G
Microsoft Surface Pro (2017) m3
HD Graphics 615, 7Y30, Samsung PM971 KUS020203M
Huawei Matebook E
HD Graphics 615, 7Y54, SanDisk SD8SN8U256G1027
Lenovo ThinkPad X1 Tablet Gen 2
HD Graphics 615, 7Y54, Samsung PM961 MZVLW256HEHP
Lenovo Yoga Book 2016 Windows 64GB LTE
HD Graphics 400 (Braswell), Z8550, 64 GB eMMC Flash
Heat
-9%
11%
-10%
10%
Maximum Upper Side *
42
40.5
4%
36.3
14%
47.2
-12%
34
19%
Maximum Bottom *
43.8
40.6
7%
37.9
13%
49.8
-14%
40.2
8%
Idle Upper Side *
27.7
37.8
-36%
26.2
5%
30.8
-11%
25.7
7%
Idle Bottom *
28.7
32
-11%
25.6
11%
29.2
-2%
27.1
6%

* ... smaller is better

Max. Load
 37.1 °C42 °C41 °C 
 33.6 °C36.8 °C36.9 °C 
 31.5 °C33.3 °C33.4 °C 
Maximum: 42 °C
Average: 36.2 °C
43.1 °C43.8 °C39.1 °C
39.3 °C38.5 °C36.5 °C
34.9 °C35.4 °C34 °C
Maximum: 43.8 °C
Average: 38.3 °C
Power Supply (max.)  41.7 °C | Room Temperature 23.2 °C | FIRT 550-Pocket
(±) The average temperature for the upper side under maximal load is 36.2 °C / 97 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(±) The maximum temperature on the upper side is 42 °C / 108 F, compared to the average of 35.4 °C / 96 F, ranging from 21.8 to 55.7 °C for the class Convertible.
(±) The bottom heats up to a maximum of 43.8 °C / 111 F, compared to the average of 36.5 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.3 °C / 79 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (33.4 °C / 92.1 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 29 °C / 84.2 F (-4.4 °C / -7.9 F).
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2044.937.244.92539.43639.43135.831.235.84037.228.537.25038.532.238.56340.428.740.4803928.63910040.627.540.612540.325.140.316043.825.543.820046.623.646.625049.32349.331557.822.157.840059.72159.750061.120.261.163061.12061.180063.318.763.3100063.117.963.1125064.91864.9160063.717.363.7200067.317.367.3250065.817.365.831506217.262400059.41759.45000571757630049.417.149.4800051.917.151.91000054.517.354.51250049.617.349.61600043.517.543.5SPL74.630.274.6N31.41.231.4median 57.8median 17.9median 57.8Delta72.7735.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.62.4hearing rangehide median Pink NoiseLenovo Yoga Book C930 YB-J912FApple MacBook 12 (Early 2016) 1.1 GHz
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Lenovo Yoga Book C930 YB-J912F audio analysis

(-) | not very loud speakers (67.29 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.4% lower than median
(±) | linearity of bass is average (8.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.2% higher than median
(+) | mids are linear (3.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.6% away from median
(±) | linearity of highs is average (8.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18% difference to median)
Compared to same class
» 28% of all tested devices in this class were better, 9% similar, 63% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 30% of all tested devices were better, 7% similar, 64% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 1% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Power Consumption
Off / Standbydarklight 0.35 / 0.75 Watt
Idledarkmidlight 5.3 / 6.9 / 7.4 Watt
Load midlight 19.7 / 30.5 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Lenovo Yoga Book C930 YB-J912F
7Y54, HD Graphics 615, Toshiba KBG30ZMT256G, IPS, 2560x1660, 10.8
Lenovo Yoga Book 2016 Windows 64GB LTE
Z8550, HD Graphics 400 (Braswell), 64 GB eMMC Flash, IPS , 1920x1080, 10.1
Microsoft Surface Pro (2017) m3
7Y30, HD Graphics 615, Samsung PM971 KUS020203M, IPS, 2736x1826, 12.3
Huawei Matebook E
7Y54, HD Graphics 615, SanDisk SD8SN8U256G1027, IPS, 2160x1440, 12
Lenovo ThinkPad X1 Tablet Gen 2
7Y54, HD Graphics 615, Samsung PM961 MZVLW256HEHP, IPS, 2160x1440, 12
Average Intel HD Graphics 615
 
Average of class Convertible
 
Power Consumption
44%
-2%
1%
9%
7%
-13%
Idle Minimum *
5.3
2
62%
3.1
42%
3.9
26%
5
6%
4.12 (2.8 - 8.2, n=16)
22%
4.68 (1 - 23, n=364)
12%
Idle Average *
6.9
4.6
33%
8.8
-28%
8.8
-28%
6.3
9%
7.02 (5.5 - 10.8, n=16)
-2%
7.84 (1.3 - 32.3, n=364)
-14%
Idle Maximum *
7.4
5.7
23%
9.8
-32%
8.9
-20%
7.8
-5%
7.89 (7.4 - 12.7, n=16)
-7%
9.35 (1.8 - 61, n=364)
-26%
Load Average *
19.7
11.5
42%
22.7
-15%
20
-2%
19.5
1%
20 (18.4 - 25.1, n=16)
-2%
26.2 (1.4 - 94, n=362)
-33%
Load Maximum *
30.5
11.5
62%
23.6
23%
21.8
29%
19.6
36%
23.8 (20 - 36.1, n=16)
22%
31.1 (6.8 - 117, n=363)
-2%

* ... smaller is better

Battery Runtime
Idle (without WLAN, min brightness)
11h 30min
NBC WiFi Websurfing Battery Test 1.3
6h 20min
Big Buck Bunny H.264 1080p
6h 35min
Load (maximum brightness)
2h 33min
Lenovo Yoga Book C930 YB-J912F
7Y54, HD Graphics 615, 36 Wh
Microsoft Surface Pro (2017) m3
7Y30, HD Graphics 615, 45 Wh
Huawei Matebook E
7Y54, HD Graphics 615, 33.7 Wh
Lenovo ThinkPad X1 Tablet Gen 2
7Y54, HD Graphics 615, 37 Wh
Lenovo Yoga Book 2016 Windows 64GB LTE
Z8550, HD Graphics 400 (Braswell), 32 Wh
Average of class Convertible
 
Battery Runtime
53%
7%
0%
49%
10%
Reader / Idle
690
933
35%
662
-4%
1153
67%
765 (117 - 1985, n=285)
11%
H.264
395
668
69%
444 (206 - 1070, n=108)
12%
WiFi v1.3
380
682
79%
405
7%
441
16%
498
31%
452 (153 - 1010, n=238)
19%
Load
153
198
29%
134
-12%
147 (49 - 677, n=275)
-4%

Pros

+ 三合一:笔记本,平板,电子阅读器
+ 性能相较前代有显著提升
+ 屏幕很不错
+ LTE模块
+ SSD速度可圈可点
+ 不插电运行性能无损耗
+ 小巧轻便
+ 电子墨水屏支持笔触,手触和键盘模式
+ 无风扇设计完全静音,发热小

Cons

- 接口选择有限
- 没有耳机接口
- 续航差于前代
- 没有键盘背光
- 性能在高负载下显著降低
- microSD卡槽必须用取卡针打开
- 相机很差
- 触摸板太小
联想Yoga Book C930, test unit provided by Notebooksbilliger.de
联想Yoga Book C930, test unit provided by Notebooksbilliger.de

新款Yoga Book的电子墨水屏非常独特。它最大的优点是它的多功能性。它非常小巧轻便,可用作笔记本电脑,平板电脑或电子阅读器。但当然,这种灵活性也需要一些妥协。

例如,键盘不适合频繁打字机,也没有背光。对于传统笔记本用户来说,接口很少是件麻烦事。如果您只需要一个电子阅读器,您可能会需要更轻的设备。

“联想笔记本部门针对的客户群体是那些希望将所有功能(手触,笔触,电子阅读器等)组合到一个设备中的人。正在寻找普通笔记本电脑的用户可能不会对其感到满意。”

尽管如此,令人惊讶的是联想已经成功地将所有这些功能组合到这样一个轻薄本中。它的设计和酷炫的功能将Book C930变成了一个真正吸引眼球的笔记本电脑。由于我们的评估系统中没有单独的电子墨水显示类别,因此我们手动为结果添加了两个百分点。

一些用户可能认为价格是另一个劣势——起价1050美元(约7000元人民币),该设备的定价约为其前身的两倍。除了许多改进之外,一些功能也已消失。没有了使用纸张图像数字化的可能性,更好的主摄像头也不见了,更不幸的是,续航时间明显短于其前代产品。不过性能上倒是有了显着提高,显示效果也更好。最重要的是:目前该设备没有真正的竞争对手。

Lenovo Yoga Book C930 YB-J912F - 12/22/2018 v6
Christian Hintze

Chassis
82 / 98 → 83%
Keyboard
60%
Pointing Device
78%
Connectivity
41 / 80 → 51%
Weight
79 / 35-78 → 100%
Battery
88%
Display
86%
Games Performance
47 / 68 → 69%
Application Performance
67 / 87 → 77%
Temperature
90%
Noise
100%
Audio
36 / 91 → 40%
Camera
42 / 85 → 49%
Add Points
+2%
Average
64%
84%
Convertible - Weighted Average

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> Notebookcheck中文版(NBC中国) > 评测 > 联想Yoga Book C930(i5-7Y54, LTE, E-Ink)二合一笔记本评测
Christian Hintze, 2019-01-25 (Update: 2019-01-25)