Intel Core i5-8350U vs Intel Core i7-8550U

Intel Core i5-8350U

► remove Intel 8350U

The Intel Core i5-8350U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Kaby Lake Refresh generation and was announced in August 2017. Contrary to its direct predecessor the Core i5-7300U, which were still dual-cores, the i7-8350U is equipped with four cores but at a lower base frequency of 1.7 GHz. The Turbo Boost can go up to 3,6 GHz and therefore also offer good short term single core speeds. The GPU is now named Intel UHD Graphics 620 but otherwise identical to the Intel HD Graphics 620. The integrated memory controller supports DDR4-2400 / LPDDR3-2133 and dual channel memory.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

According to Intel, the new quad core models are up to 40% faster than their dual core predecessors. Due to the reduced TDP and the same 14nm+ process, the long term performance and throttling behaviour will be interesting and depending on the laptop design. Therefore, the older 35 Watt quad-core models should be faster in applications that demand longer CPU loads.

Graphics

The integrated Intel UHD Graphics 620 (Intel Gen 9.5) is untouched from the 8th Gen Kaby Lake chips. With fast dual-channel memory it can reach the performance of a dedicated GeForce 920M.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors announced in January should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors (14nm+), the same as the 7th Gen Kaby Lake processors. Intel still specifies the TDP with 15 Watts, which is typical for ULV chips. Depending on the usage scenario, the TDP can vary between 7.5 (cTDP Down) and 25 Watts.

Intel Core i7-8550U

► remove Intel 8550U

The Intel Core i7-8550U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Kaby Lake Refresh generation and was announced in August 2017. Contrary to its direct predecessors Core i7-7500U and i5-7260U, respectively, which were still dual-cores, the i7-8550U is equipped with four cores but at a lower base frequency of 1.8 GHz. The Turbo Boost is not specified yet, but should be at least 3.7 - 4 GHz and therefore also offer good short term single core speeds. The GPU is now named Intel UHD Graphics 620 but otherwise identical to the Intel HD Graphics 620. The integrated memory controller supports DDR4-2400 / LPDDR3-2133 and dual channel memory.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

The performance of the i7-8550U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. This leads to big differences in our benchmark scores ranging from the 15 Watt reference by Intel up to the 23% higher score of the Inspiron 17-7773 in the Cinebench R15 Multi benchmark. Especially when taxing the CPU for longer periods, these differences can be even higher.

In our usual benchmarks, the average i7-8550U is as fast as the 35 Watt rated Core i5-7440HQ. For single thread performance, the high Turbo Boost frequency helps achieving one of the highest scores for mobile CPUs.

Graphics

The integrated Intel UHD Graphics 620 (Intel Gen 9.5) is untouched from the 8th Gen Kaby Lake chips. With fast dual-channel memory it can reach the performance of a dedicated GeForce 920M.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors announced in January should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors (14nm+), the same as the 7th Gen Kaby Lake processors. Intel still specifies the TDP with 15 Watts, which is typical for ULV chips. Depending on the usage scenario, the TDP can vary between 7.5 (cTDP Down) and 25 Watts.

Intel Core i5-8350UIntel Core i7-8550U
Intel Kaby Lake RefreshIntel Kaby Lake Refresh
Kaby Lake RefreshKaby Lake Refresh
: Kaby Lake Refresh Kaby Lake Refresh
Intel Core i7-8650U (compare)1900 - 4200 MHz4 / 88 MB
Intel Core i7-8550U1800 - 4000 MHz4 / 88 MB
» Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
Intel Core i5-8250U (compare)1600 - 3400 MHz4 / 86 MB
Intel Core i3-8130U (compare)2200 - 3400 MHz2 / 44 MB
Intel Pentium Gold 4417U (compare)2300 MHz2 / 42 MB
Intel Core i7-8650U (compare)1900 - 4200 MHz4 / 88 MB
» Intel Core i7-8550U1800 - 4000 MHz4 / 88 MB
Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
Intel Core i5-8250U (compare)1600 - 3400 MHz4 / 86 MB
Intel Core i3-8130U (compare)2200 - 3400 MHz2 / 44 MB
Intel Pentium Gold 4417U (compare)2300 MHz2 / 42 MB
1700 - 3600 MHz1800 - 4000 MHz
256 KB256 KB
1 MB1 MB
6 MB8 MB
4 / 84 / 8
15 15
14 14
BGA1356BGA1356
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel UHD Graphics 620 (300 - 1100 MHz)Intel UHD Graphics 620 (300 - 1150 MHz)
$297 U.S.$409 U.S.

Cinebench R20 - CPU (Single Core)
383 Points (75%)
Cinebench R20 - CPU (Multi Core)
1138 Points (13%)
Cinebench R15 - CPU Multi 64Bit
min: 332     avg: 536     median: 543 (12%)     max: 631 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630Tooltip
min: 301     avg: 569     median: 551 (13%)     max: 761 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770Tooltip
Cinebench R15 - CPU Single 64Bit
min: 128     avg: 147     median: 150.5 (69%)     max: 153 Points
min: 108     avg: 160     median: 163.5 (75%)     max: 172 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 5.48     avg: 6.3     median: 6 (15%)     max: 7.33 Points
min: 4.38     avg: 6.3     median: 6.1 (16%)     max: 8.56 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.62     avg: 1.7     median: 1.7 (69%)     max: 1.71 Points
min: 1.43     avg: 1.8     median: 1.9 (77%)     max: 1.95 Points
Cinebench R10 - Rendering Single 32Bit
min: 5152     avg: 5461     median: 5460.5 (56%)     max: 5769 Points
min: 4202     avg: 6333     median: 6423 (66%)     max: 8211 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 16222     avg: 17931     median: 17931 (30%)     max: 19640 Points
min: 11694     avg: 17867     median: 17321.5 (29%)     max: 24180 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
28684 Points (38%)
min: 12279     avg: 23153     median: 22717 (30%)     max: 31667 Points
Cinebench R10 - Rendering Single CPUs 64Bit
7593 Points (71%)
min: 6737     avg: 8065     median: 8370.5 (78%)     max: 8436 Points
wPrime 2.0x - 1024m *
min: 305.731     avg: 330     median: 330.4 (4%)     max: 355.162 seconds
min: 257.514     avg: 352     median: 366.7 (4%)     max: 435 seconds
wPrime 2.0x - 32m *
min: 7.517     avg: 9.7     median: 9.7 (2%)     max: 11.891 seconds
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: 1960     avg: 2961     median: 2961 (35%)     max: 3962 KB/s
min: 3847     avg: 4487     median: 4374 (51%)     max: 5287 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 34     avg: 37.3     median: 37.3 (24%)     max: 40.55 fps
min: 32     avg: 35.3     median: 33.1 (21%)     max: 41 fps
X264 HD Benchmark 4.0 - Pass 1
min: 145     avg: 153     median: 152.8 (54%)     max: 160.67 fps
min: 143.6     avg: 154     median: 147.9 (53%)     max: 178 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3.88     avg: 4.2     median: 4.2 (15%)     max: 4.43 fps
010Tooltip
TrueCrypt - Serpent Mean 100MB
min: 0.363     avg: 0.4     median: 0.4 (22%)     max: 0.456 GB/s
min: 0.357     avg: 0.4     median: 0.4 (23%)     max: 0.469 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.623     avg: 0.7     median: 0.7 (0%)     max: 0.754 GB/s
min: 0.583     avg: 0.7     median: 0.7 (0%)     max: 0.793 GB/s
TrueCrypt - AES Mean 100MB
min: 3.7     avg: 4.1     median: 4.1 (21%)     max: 4.4 GB/s
min: 3.3     avg: 4.2     median: 4.3 (22%)     max: 4.6 GB/s
Blender 2.79 *
705 Seconds (5%)
min: 841.1     avg: 889     median: 888.9 (6%)     max: 936.7 Seconds
3DMark 06 - CPU
min: 5852     avg: 6131     median: 5925 (40%)     max: 6617 Points
min: 4534     avg: 5951     median: 5845 (39%)     max: 7795 Points
Super Pi mod 1.5 XS 1M *
min: 10     avg: 10.9     median: 10.9 (2%)     max: 11.883 Seconds
min: 9     avg: 10.5     median: 9.3 (2%)     max: 17.455 Seconds
Super Pi mod 1.5 XS 2M *
min: 23     avg: 25.3     median: 25.3 (1%)     max: 27.616 Seconds
min: 20     avg: 23     median: 21.2 (1%)     max: 32.72 Seconds
Super Pi Mod 1.5 XS 32M *
min: 580     avg: 637     median: 637 (3%)     max: 693.93 Seconds
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: 4349     avg: 5995     median: 6092 (30%)     max: 7023 points
min: 3961     avg: 6671     median: 6663 (33%)     max: 9527 points
3DMark - Ice Storm Standard Physics 1280x720
min: 39950     avg: 43226     median: 43226 (28%)     max: 46502 Points
min: 16314     avg: 42803     median: 44682 (29%)     max: 55226 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 38261     avg: 42913     median: 42913 (51%)     max: 47565 Points
min: 16312     avg: 37536     median: 36876 (44%)     max: 51937 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 51828     avg: 52962     median: 53024 (61%)     max: 54034 Points
min: 27917     avg: 50269     median: 52842 (61%)     max: 58213 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 5408     avg: 6288     median: 6155 (16%)     max: 7190 Points
min: 3437     avg: 5736     median: 5675 (14%)     max: 7725 Points
3DMark - Fire Strike Physics 1920x1080
min: 7603     avg: 8941     median: 8945.5 (30%)     max: 10362 Points
min: 3961     avg: 8258     median: 8409 (29%)     max: 11110 Points
Geekbench 3 - 32 Bit Multi-Core Score
12270 Points (22%)
min: 8918     avg: 12315     median: 12327.5 (22%)     max: 14144 Points
Geekbench 3 - 32 Bit Single-Core Score
3439 Points (71%)
min: 2471     avg: 3671     median: 3770 (78%)     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
4160 Points (66%)
min: 4439     avg: 4686     median: 4699 (74%)     max: 4858 Points
Geekbench 4.0 - 64 Bit Multi-Core Score
12679 Points (35%)
min: 10747     avg: 13316     median: 13251 (37%)     max: 15294 Points
Geekbench 4.4 - 64 Bit Single-Core Score
min: 3646     avg: 4185     median: 4225 (67%)     max: 4685 Points
min: 4555     avg: 4858     median: 4900 (77%)     max: 4997 Points
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 11004     avg: 13358     median: 13605 (24%)     max: 15464 Points
min: 10869     avg: 14247     median: 15117 (26%)     max: 16294 Points
Geekbench 5 - 64 Bit Single-Core Score
1081 Points (80%)
Geekbench 5 - 64 Bit Multi-Core Score
3141 Points (19%)
Mozilla Kraken 1.1 - Total Score *
min: 1016.5     avg: 1188     median: 1222.8 (2%)     max: 1288.9 ms
min: 876.6     avg: 1091     median: 1110.5 (2%)     max: 2114.4 ms
Sunspider - 1.0 Total Score *
min: 78.9     avg: 131     median: 88 (1%)     max: 224.9 ms
min: 63.2     avg: 80.3     median: 71.3 (1%)     max: 122.7 ms
Octane V2 - Total Score
min: 28223     avg: 32037     median: 30602 (58%)     max: 38722 Points
min: 17296     avg: 33448     median: 33496 (64%)     max: 42043 Points
PCMark for Android - Computer Vision score
9887 Points (59%)
PCMark for Android - Storage score
15717 Points (54%)
PCMark for Android - Work 2.0 performance score
11958 Points (97%)
PCMark for Android - Work performance score
19602 Points (100%)
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
100%
1 8550U +
min: 33.7     avg: 47.6     median: 47.6 (13%)     max: 61.4 Watt
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
100%
1 8550U +
min: 28.9     avg: 41.3     median: 31.9 (8%)     max: 63.2 Watt

Average Benchmarks Intel Core i5-8350U → 100%

Average Benchmarks Intel Core i7-8550U → 103%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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