Intel Core i5-8350U vs Intel Core i7-8650U

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 i7-8650U

► remove Intel 8650U

The Intel Core i7-8650U 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 i7-7600U, which were still dual-cores, the i7-8650U is equipped with four cores but at a lower base frequency of 1.9 GHz. The Turbo Boost can go up to 4,2 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. The performance however is highly depending on the TDP settings and cooling solution of the laptop. Especially, longer loads will show varying results in different laptops.

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 i7-8650U
Intel Kaby Lake RefreshIntel Kaby Lake Refresh
Kaby Lake RefreshKaby Lake Refresh
: Kaby Lake Refresh Kaby Lake Refresh
Intel Core i7-8650U1900 - 4200 MHz4 / 88 MB
Intel Core i7-8550U (compare)1800 - 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 i7-8650U1900 - 4200 MHz4 / 88 MB
Intel Core i7-8550U (compare)1800 - 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 MHz1900 - 4200 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.
Intel Kaby Lake Refresh 8650U

Cinebench R15 - CPU Multi 64Bit
min: 332     avg: 536     median: 543 (12%)     max: 631 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630Tooltip
min: 447     avg: 580     median: 605 (14%)     max: 675 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680Tooltip
Cinebench R15 - CPU Single 64Bit
min: 128     avg: 147     median: 150.5 (69%)     max: 153 Points
min: 128     avg: 165     median: 169 (78%)     max: 178 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 5.48     avg: 6.3     median: 6 (15%)     max: 7.33 Points
min: 5.04     avg: 6.4     median: 6.8 (18%)     max: 7.24 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.62     avg: 1.7     median: 1.7 (69%)     max: 1.71 Points
min: 1.67     avg: 1.9     median: 1.9 (78%)     max: 2.04 Points
Cinebench R10 - Rendering Single 32Bit
min: 5152     avg: 5461     median: 5460.5 (56%)     max: 5769 Points
min: 5307     avg: 6337     median: 6629 (68%)     max: 6782 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 16222     avg: 17931     median: 17931 (30%)     max: 19640 Points
min: 16227     avg: 18738     median: 18635 (31%)     max: 21455 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
28684 Points (38%)
21677 Points (29%)
Cinebench R10 - Rendering Single CPUs 64Bit
7593 Points (71%)
6864 Points (64%)
wPrime 2.0x - 1024m *
min: 305.731     avg: 330     median: 330.4 (4%)     max: 355.162 seconds
min: 268.279     avg: 302     median: 302.8 (4%)     max: 334.6 seconds
wPrime 2.0x - 32m *
min: 7.517     avg: 9.7     median: 9.7 (2%)     max: 11.891 seconds
min: 8.636     avg: 9.6     median: 9.9 (2%)     max: 10.277 seconds
wPrime 1.55 - 1024m *
414 seconds (2%)
wPrime 1.55 - 32m *
10.3 seconds (5%)
WinRAR - Result
min: 1960     avg: 2961     median: 2961 (35%)     max: 3962 KB/s
min: 4140     avg: 4423     median: 4319 (51%)     max: 4915 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 34     avg: 37.3     median: 37.3 (24%)     max: 40.55 fps
min: 35     avg: 39.1     median: 39.8 (25%)     max: 41.98 fps
X264 HD Benchmark 4.0 - Pass 1
min: 145     avg: 153     median: 152.8 (54%)     max: 160.67 fps
min: 149     avg: 165     median: 169.6 (60%)     max: 173.19 fps
TrueCrypt - Serpent Mean 100MB
min: 0.363     avg: 0.4     median: 0.4 (22%)     max: 0.456 GB/s
min: 0.393     avg: 0.4     median: 0.4 (23%)     max: 0.444 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.623     avg: 0.7     median: 0.7 (0%)     max: 0.754 GB/s
min: 0.662     avg: 0.7     median: 0.7 (0%)     max: 0.733 GB/s
TrueCrypt - AES Mean 100MB
min: 3.7     avg: 4.1     median: 4.1 (21%)     max: 4.4 GB/s
min: 3.9     avg: 4.2     median: 4.3 (22%)     max: 4.4 GB/s
Blender 2.79 *
705 Seconds (5%)
3DMark 06 - CPU
min: 5852     avg: 6131     median: 5925 (40%)     max: 6617 Points
min: 4487     avg: 6716     median: 6936 (46%)     max: 7939 Points
Super Pi mod 1.5 XS 1M *
min: 10     avg: 10.9     median: 10.9 (2%)     max: 11.883 Seconds
min: 8     avg: 8.6     median: 8.8 (2%)     max: 9 Seconds
Super Pi mod 1.5 XS 2M *
min: 23     avg: 25.3     median: 25.3 (1%)     max: 27.616 Seconds
min: 19     avg: 19.7     median: 20 (1%)     max: 20.1 Seconds
Super Pi Mod 1.5 XS 32M *
min: 580     avg: 637     median: 637 (3%)     max: 693.93 Seconds
min: 501     avg: 513     median: 508 (2%)     max: 542 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
19125 Points (27%)
3DMark 11 - Performance Physics 1280x720
min: 4349     avg: 5995     median: 6092 (30%)     max: 7023 points
min: 5168     avg: 7106     median: 6863 (34%)     max: 8887 points
3DMark - Ice Storm Standard Physics 1280x720
min: 39950     avg: 43226     median: 43226 (28%)     max: 46502 Points
min: 39040     avg: 42198     median: 41275 (27%)     max: 47797 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 38261     avg: 42913     median: 42913 (51%)     max: 47565 Points
min: 41011     avg: 43029     median: 41405.5 (49%)     max: 48293 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 51828     avg: 52962     median: 53024 (61%)     max: 54034 Points
min: 44090     avg: 52920     median: 56455 (65%)     max: 58675 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 5408     avg: 6288     median: 6155 (16%)     max: 7190 Points
min: 4442     avg: 5935     median: 6089 (15%)     max: 7416 Points
3DMark - Fire Strike Physics 1920x1080
min: 7603     avg: 8941     median: 8945.5 (30%)     max: 10362 Points
min: 6823     avg: 8895     median: 9167 (31%)     max: 10541 Points
Geekbench 3 - 32 Bit Multi-Core Score
12270 Points (22%)
Geekbench 3 - 32 Bit Single-Core Score
3439 Points (71%)
Geekbench 4.0 - 64 Bit Single-Core Score
4160 Points (66%)
Geekbench 4.0 - 64 Bit Multi-Core Score
12679 Points (35%)
Geekbench 4.4 - 64 Bit Single-Core Score
min: 3646     avg: 4185     median: 4225 (67%)     max: 4685 Points
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 11004     avg: 13358     median: 13605 (24%)     max: 15464 Points
Mozilla Kraken 1.1 - Total Score *
min: 1016.5     avg: 1188     median: 1222.8 (2%)     max: 1288.9 ms
min: 809     avg: 1126     median: 1076.6 (2%)     max: 1911.9 ms
Sunspider - 1.0 Total Score *
min: 78.9     avg: 131     median: 88 (1%)     max: 224.9 ms
min: 63.8     avg: 74.2     median: 74.4 (1%)     max: 83.1 ms
Octane V2 - Total Score
min: 28223     avg: 32037     median: 30602 (58%)     max: 38722 Points
min: 11491     avg: 31341     median: 33906 (65%)     max: 42822 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%)

Average Benchmarks Intel Core i5-8350U → 100%

Average Benchmarks Intel Core i7-8650U → 105%

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

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Redaktion, 2017-09- 8 (Update: 2017-09-11)