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Intel Core i7-8550U

Intel i5-8550U

英特尔酷睿i7-8550U是一款高效的四核SoC,适用于基于Kaby Lake Refresh一代的笔记本电脑和超级本,于2017年8月发布。与其直接的前辈Core i7-7500U和i5-7260U的双核不同,i7-8550U配备四核,但基频较低,为1.8 GHz。Turbo Boost尚未指定,但应至少为3.7  - 4 GHz,因此也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

i7-8550U的性能取决于笔记本电脑的散热解决方案以及短期和长期的TDP限制。这导致我们的基准分数差异很大,从英特尔的15瓦参考值到Cinebench R15 Multi基准测试中Inspiron 17-7773的高分相差了23%。特别是在CPU高负荷运行较长时间时,这些差异可能会更高。

在我们通常的基准测试中,i7-8550U与35瓦额定Core i5-7440HQ一样快。对于单线程性能,高Turbo Boost频率有助于i7-8550U实现移动CPU的最高分数之一。

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,它可以达到专用GeForce 920M的性能。

与Skylake相反,Kaby湖现在还支持具有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 Rate1800 - 4000 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
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 - 1150 MHz)
64 Bit64 Bit support
Starting Price$409 U.S.
Announcement Date08/21/2017

Benchmarks

Cinebench R20 - CPU (Single Core)
383 Points (72%)
Cinebench R20 - CPU (Multi Core)
1138 Points (11%)
Cinebench R15 - CPU Multi 64Bit
min: 301     avg: 569     median: 551 (13%)     max: 761 Points
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Cinebench R15 - CPU Single 64Bit
min: 108     avg: 160     median: 163.5 (73%)     max: 172 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 4.38     avg: 6.3     median: 6.1 (14%)     max: 8.56 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.43     avg: 1.8     median: 1.9 (74%)     max: 1.95 Points
Cinebench R10 - Rendering Single 32Bit
min: 4202     avg: 6333     median: 6423 (66%)     max: 8211 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 11694     avg: 17867     median: 17321.5 (29%)     max: 24180 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 12279     avg: 23153     median: 22717 (26%)     max: 31667 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 6737     avg: 8065     median: 8370.5 (78%)     max: 8436 Points
wPrime 2.0x - 1024m *
min: 257.514     avg: 352     median: 366.7 (4%)     max: 435 seconds
wPrime 2.0x - 32m *
min: 7.047     avg: 9.8     median: 9.9 (2%)     max: 12.7 seconds
wPrime 1.55 - 1024m *
847 seconds (3%)
wPrime 1.55 - 32m *
26.3 seconds (14%)
WinRAR - Result
min: 3847     avg: 4487     median: 4374 (45%)     max: 5287 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 32     avg: 35.3     median: 33.1 (20%)     max: 41 fps
X264 HD Benchmark 4.0 - Pass 1
min: 143.6     avg: 154     median: 147.9 (51%)     max: 178 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3.88     avg: 4.2     median: 4.2 (15%)     max: 4.43 fps
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TrueCrypt - Serpent Mean 100MB
min: 0.357     avg: 0.4     median: 0.4 (19%)     max: 0.469 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.583     avg: 0.7     median: 0.7 (20%)     max: 0.793 GB/s
TrueCrypt - AES Mean 100MB
min: 3.3     avg: 4.2     median: 4.3 (22%)     max: 4.6 GB/s
Blender 2.79 - BMW27 CPU *
min: 841.1     avg: 889     median: 888.9 (6%)     max: 936.7 Seconds
3DMark 06 - CPU
min: 4534     avg: 5951     median: 5845 (39%)     max: 7795 Points
Super Pi mod 1.5 XS 1M *
min: 9     avg: 10.5     median: 9.3 (2%)     max: 17.455 Seconds
Super Pi mod 1.5 XS 2M *
min: 20     avg: 23     median: 21.2 (1%)     max: 32.72 Seconds
Super Pi Mod 1.5 XS 32M *
min: 509.5     avg: 575     median: 536 (2%)     max: 740.35 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
21623 Points (30%)
3DMark 11 - Performance Physics 1280x720
min: 3961     avg: 6671     median: 6663 (30%)     max: 9527 points
3DMark - Ice Storm Standard Physics 1280x720
min: 16314     avg: 42803     median: 44682 (29%)     max: 55226 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 16312     avg: 37536     median: 36876 (44%)     max: 51937 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 27917     avg: 50269     median: 52842 (61%)     max: 58213 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 3437     avg: 5736     median: 5675 (14%)     max: 7725 Points
3DMark - Fire Strike Physics 1920x1080
min: 3961     avg: 8258     median: 8409 (26%)     max: 11110 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 8918     avg: 12315     median: 12327.5 (22%)     max: 14144 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 2471     avg: 3671     median: 3770 (77%)     max: 4020 Points
Geekbench 3 - 64 Bit Multi-Core Score
min: 11637     avg: 12834     median: 12833.5 (20%)     max: 14030 Points
Geekbench 3 - 64 Bit Single-Core Score
min: 3784     avg: 3949     median: 3948.5 (80%)     max: 4113 Points
Geekbench 4.0 - 64 Bit Single-Core Score
min: 4439     avg: 4686     median: 4699 (74%)     max: 4858 Points
Geekbench 4.0 - 64 Bit Multi-Core Score
min: 10747     avg: 13316     median: 13251 (32%)     max: 15294 Points
Geekbench 4.4 - 64 Bit Single-Core Score
min: 4555     avg: 4858     median: 4900 (77%)     max: 4997 Points
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 10869     avg: 14247     median: 15117 (26%)     max: 16294 Points
Geekbench 5 - 64 Bit Single-Core Score
1081 Points (75%)
Geekbench 5 - 64 Bit Multi-Core Score
3141 Points (19%)
Mozilla Kraken 1.1 - Total Score *
min: 876.6     avg: 1091     median: 1110.5 (2%)     max: 2114.4 ms
Sunspider - 1.0 Total Score *
min: 63.2     avg: 80.3     median: 71.3 (1%)     max: 122.7 ms
Octane V2 - Total Score
min: 17296     avg: 33448     median: 33496 (64%)     max: 42043 Points
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
min: 33.7     avg: 47.6     median: 47.6 (13%)     max: 61.4 Watt