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Intel Core i5-8250U

Intel 8250U

英特尔酷睿i5-8250U是基于Kaby Lake-Refresh一代的笔记本电脑和超级本的高能效四核SoC,于2017年8月宣布。与其前身的Core i5-7200U的双核不同, i7-8250U配备四个内核,但基频较低,为1.6 GHz。 Turbo Boost最高可达3.4 GHz,因此也可提供良好的短期单核速度。 GPU现在命名为Intel UHD Graphics 620,但与Intel HD Graphics 620完全相同。集成内存控制器支持DDR4-2400 / LPDDR3-2133和双通道内存。

架构

与Skylake相比,英特尔基本上使用相同的微架构,因此每MHz性能没有差别。制造商仅对速度转换技术进行了重新设计,以便更快地动态调整电压和时钟,改进的14nm工艺允许更高的频率,并且效率比以前更高。

性能

根据英特尔的说法,新的四核比其双核前代型号快40%。由于降低了TDP和相同的14nm +工艺,长期性能和节流行为将取决于笔记本电脑的设计。因此,在需要更长CPU负载的应用中,较旧的35瓦四核模具应该更快。

图形

集成的Intel UHD Graphics 620(Intel Gen 9.5)未受到第8代Kaby Lake芯片的影响。凭借快速双通道内存,它可以达到独显GeForce 920M的性能。

与Skylake相反,Kaby Lake现在还支持具有10位色深的H.265 / HEVC Main 10以及Google的VP9编解码器。 1月份宣布的双核Kaby Lake处理器也应该支持HDCP 2.2。

能耗

该芯片采用改进的14nm工艺制造,采用FinFET晶体管(14nm +),与第7代Kaby Lake处理器相同。英特尔仍指定15瓦的TDP,这是ULV芯片的典型特征。根据使用场景,TDP可在7.5(cTDP Down)和25 W之间变化。

SeriesIntel Kaby Lake Refresh
CodenameKaby Lake Refresh
Series: Kaby Lake Refresh Kaby Lake Refresh
Intel Core i7-8650U1900 - 4200 MHz4 / 88 MB
Intel Core i7-8550U1800 - 4000 MHz4 / 88 MB
Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
» Intel Core i5-8250U1600 - 3400 MHz4 / 86 MB
Intel Core i3-8130U2200 - 3400 MHz2 / 44 MB
Intel Pentium Gold 4417U2300 MHz2 / 42 MB
Clock Rate1600 - 3400 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache6 MB
Number of Cores / Threads4 / 8
Max. Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology14 nm
SocketBGA1356
FeaturesDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel UHD Graphics 620 (300 - 1100 MHz)
64 Bit64 Bit support
Starting Price$297 U.S.
Announcement Date08/21/2017

Benchmarks

Cinebench R20 - CPU (Single Core)
351 Points (68%)
Cinebench R20 - CPU (Multi Core)
1117 Points (13%)
Cinebench R15 - CPU Multi 64Bit
min: 320     avg: 568     median: 555 (13%)     max: 730 Points
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Cinebench R15 - CPU Single 64Bit
min: 81     avg: 141     median: 144 (66%)     max: 147 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 3.15     avg: 6     median: 5.9 (15%)     max: 7.76 Points
Cinebench R11.5 - CPU Single 64Bit
min: 0.91     avg: 1.6     median: 1.6 (67%)     max: 1.79 Points
Cinebench R10 - Rendering Single 32Bit
min: 5349     avg: 5631     median: 5533 (57%)     max: 8356 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 14148     avg: 18261     median: 17987 (30%)     max: 22097 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 11245     avg: 23585     median: 23873 (31%)     max: 28932 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 5163     avg: 6972     median: 7174 (67%)     max: 8153 Points
wPrime 2.0x - 1024m *
min: 243.336     avg: 310     median: 310.4 (4%)     max: 402.09 seconds
wPrime 2.0x - 32m *
min: 7.394     avg: 9     median: 8.2 (2%)     max: 13.753 seconds
WinRAR - Result
min: 3632     avg: 3991     median: 3991 (47%)     max: 4350 KB/s
7-Zip 18.03 - 7z b 4
min: 15003     avg: 16204     median: 16204 (17%)     max: 17405 MIPS
7-Zip 18.03 - 7z b 4 -mmt1
min: 3726     avg: 3826     median: 3825.5 (25%)     max: 3925 MIPS
X264 HD Benchmark 4.0 - Pass 2
min: 29.5     avg: 32.8     median: 32 (20%)     max: 37.7 fps
X264 HD Benchmark 4.0 - Pass 1
min: 124.58     avg: 139     median: 137.5 (49%)     max: 157.6 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3.89     avg: 4.3     median: 4.3 (15%)     max: 4.78 fps
01020Tooltip
TrueCrypt - Serpent Mean 100MB
min: 0.336     avg: 0.4     median: 0.4 (21%)     max: 0.415 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.58     avg: 0.6     median: 0.7 (0%)     max: 0.714 GB/s
TrueCrypt - AES Mean 100MB
min: 2.9     avg: 3.5     median: 3.5 (18%)     max: 4 GB/s
Blender 2.79 *
min: 812.5     avg: 969     median: 927.8 (7%)     max: 1209.2 Seconds
3DMark 06 - CPU
min: 4775     avg: 6370     median: 6348 (42%)     max: 7575 Points
Super Pi mod 1.5 XS 1M *
min: 10.9     avg: 11.7     median: 11.1 (2%)     max: 15.77 Seconds
Super Pi mod 1.5 XS 2M *
min: 24.9     avg: 26.3     median: 25.2 (1%)     max: 34.28 Seconds
Super Pi Mod 1.5 XS 32M *
min: 601     avg: 631     median: 613 (3%)     max: 782.59 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
min: 15198     avg: 20933     median: 21899 (31%)     max: 24736 Points
3DMark 11 - Performance Physics 1280x720
min: 3233     avg: 6336     median: 6276 (31%)     max: 8014 points
3DMark - Ice Storm Standard Physics 1280x720
min: 24077     avg: 44593     median: 45968.5 (30%)     max: 50962 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 24155     avg: 44427     median: 45292 (54%)     max: 50910 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 34294     avg: 49460     median: 50444 (58%)     max: 52066 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 3002     avg: 5881     median: 5774 (15%)     max: 7695 Points
3DMark - Fire Strike Physics 1920x1080
min: 4495     avg: 8538     median: 8453 (29%)     max: 10727 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 10893     avg: 12606     median: 12742 (23%)     max: 13553 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 3148     avg: 3302     median: 3242 (67%)     max: 3503 Points
Geekbench 3 - 64 Bit Multi-Core Score
min: 14363     avg: 14408     median: 14407.5 (23%)     max: 14452 Points
Geekbench 3 - 64 Bit Single-Core Score
min: 3759     avg: 3829     median: 3828.5 (78%)     max: 3898 Points
Geekbench 4.0 - 64 Bit Single-Core Score
min: 3924     avg: 4076     median: 4029 (64%)     max: 4243 Points
Geekbench 4.0 - 64 Bit Multi-Core Score
min: 10751     avg: 12210     median: 12131 (34%)     max: 13486 Points
Geekbench 4.4 - 64 Bit Single-Core Score
min: 3981     avg: 4146     median: 4115 (65%)     max: 4330 Points
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 11269     avg: 12829     median: 12751 (22%)     max: 14228 Points