Intel Core i5-8265U vs Intel Core i7-8565U

Intel Core i5-8265U

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The Intel Core i5-8265U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation and will probably be announced in August 2018. Compared to the similar named Kaby Lake-R processors (e.g. Core i5-8250U), the Whiskey Lake CPUs are now produced in a further improved 14nm process (14nm++) and offer higher clock speeds. The architecture and features are the same. The i5-8265U offers e.g. high Turbo clock speeds of 3,9 GHz (versus 3,4 GHz of the i5-8250U) for a single core (3.8 for two cores, 3.7 GHz for all four cores). The integrated GPU is still named Intel UHD Graphics 620 and the dual-channel memory controller still supports the same RAM speeds as Kaby-Lake-R (DDR4-2400 / LPDDR3-2133). Thermal Velocity Boost is not supported (only in the Core i7-8565U).

The Whiskey Lake SoCs are used with a new PCH produced in 14nm that supports USB 3.1 Gen 2 (10 Gbps) and CNVi WiFi/BT parts.

Architecture

Intel basically uses the same micro architecture compared to Skylake and Kaby Lake, so the per-MHz performance does not differ. That means Whiskey Lake is a Kaby Lake chip manufactured in the improved 14nm++ process.

Performance

The performance of the i5-8265U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. We already saw big differences for Kaby Lake-R (e.g., i7-8550U benchmarks), especially for long term (sustained) performance. Therefore, it will be interesting to see how the additionalTurbo  clock speed can be made use of. For the Core i7, Intel estimates between 3-11% higher performance to the Kaby-Lake-R generation and that should be similar in the Core i5 (as long as the cooling is sufficient).

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 and Whiskey 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 a further improved 14nm process with FinFET transistors (14nm++), the same as the 8th Gen Coffee 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.

Warning: Above information is partly still based on rumors and leaks and may therefore change till release.

Intel Core i7-8565U

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The Intel Core i7-8565U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation that was announced in August 2018 (IFA). Compared to the similar named Kaby Lake-R processors (e.g. Core i7-8550U), the Whiskey Lake CPUs are now produced in a further improved 14nm process (14nm++) and offer higher clock speeds. The architecture and features are the same. The i7-8565U offers e.g. high Turbo clock speeds of 4,6 GHz (versus 4 GHz of the i7-8550U) for a single core and 4.1 GHz (versus 3.7 GHz) of all cores (4.1 GHz for 2 cores). The integrated GPU is still named Intel UHD Graphics 620 and the dual-channel memory controller still supports the same RAM speeds as Kaby-Lake-R (DDR4-2400 / LPDDR3-2133). Compared to the slower Core i5-8265U and i3-8145U, the i7 supports Thermal Velocity Boost.

The Whiskey Lake SoCs are used with a new PCH produced in 14nm that supports USB 3.1 Gen 2 (10 Gbps) and CNVi WiFi/BT parts.

Architecture

Intel basically uses the same microarchitecture compared to Skylake and Kaby Lake, so the per-MHz performance does not differ. That means Whiskey Lake is a Kaby Lake chip manufactured in the improved 14nm++ process.

Performance

The performance of the i7-8565U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. We already saw big differences for Kaby Lake-R (e.g., i7-8550U benchmarks), especially for long term (sustained) performance. Therefore, it will be interesting to see how the additional Turbo  clock speed can be made use of. It looks like Intel is promoting the i7 to be 3 - 11% faster than the previous i7-8550U, with Cinebench R15 Multi reaching 5% gains.

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 and Whiskey 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 a further improved 14nm process with FinFET transistors (14nm++), the same as the 8th Gen Coffee 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 i5-8265UIntel Core i7-8565U
Intel Core i5Intel Core i7
Whiskey Lake-UWhiskey Lake-U
: Core i7 Whiskey Lake-U
Intel Core i5-8365U (compare)1600 - 4100 MHz4 / 86 MB
» Intel Core i5-8265U1600 - 3900 MHz4 / 86 MB
Intel Core i7-8665U (compare)1900 - 4800 MHz4 / 88 MB
» Intel Core i7-8565U1800 - 4600 MHz4 / 88 MB
1600 - 3900 MHz1800 - 4600 MHz
256 KB256 KB
1 MB1 MB
6 MB8 MB
4 / 84 / 8
15 15
14 14
BGA1528BGA1528
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)

Cinebench R15 - CPU Multi 64Bit
min: 457     avg: 598     median: 609 (14%)     max: 750 Points
min: 360     avg: 588.2     median: 572 (13%)     max: 815 Points
Cinebench R15 - CPU Single 64Bit
min: 111     avg: 154.4     median: 157 (72%)     max: 164 Points
min: 73     avg: 170.1     median: 173 (79%)     max: 193 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 5     avg: 6     median: 5 (15%)     max: 7 Points
min: 5     avg: 6.4     median: 6 (18%)     max: 7 Points
Cinebench R11.5 - CPU Single 64Bit
1.8 Points (90%)
min: 0     avg: 1.8     median: 1 (50%)     max: 2 Points
Cinebench R10 - Rendering Single 32Bit
min: 5841     avg: 6054.1     median: 6082 (67%)     max: 6209 Points
min: 2682     avg: 6558.6     median: 6648 (73%)     max: 8906 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 16318     avg: 18606.7     median: 19418 (39%)     max: 20546 Points
min: 14912     avg: 17878.8     median: 16795 (34%)     max: 23118 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 18924     avg: 21959     median: 21775 (29%)     max: 25361 Points
min: 17901     avg: 22018.5     median: 21661 (28%)     max: 26851 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 7705     avg: 7879.5     median: 7919 (76%)     max: 7975 Points
min: 6936     avg: 8428.8     median: 8809 (85%)     max: 9160 Points
wPrime 2.0x - 1024m *
min: 371     avg: 402.4     median: 402 (5%)     max: 433 seconds
min: 263     avg: 546.4     median: 385 (5%)     max: 1896 seconds
wPrime 2.0x - 32m *
min: 9     avg: 11     median: 11 (2%)     max: 12 seconds
min: 6     avg: 16     median: 9 (2%)     max: 61 seconds
WinRAR - Result
min: 3215     avg: 4039.7     median: 3988 (47%)     max: 4916 KB/s
min: 3537     avg: 4129.3     median: 4291 (50%)     max: 4626 KB/s
7-Zip 18.03 - 7z b 4
min: 15292     avg: 17076.8     median: 17467 (21%)     max: 18802 MIPS
min: 10531     avg: 18090.9     median: 18916 (23%)     max: 24847 MIPS
7-Zip 18.03 - 7z b 4 -mmt1
min: 3872     avg: 4105.1     median: 4180 (60%)     max: 4195 MIPS
min: 2029     avg: 4571.6     median: 4737 (68%)     max: 5923 MIPS
X264 HD Benchmark 4.0 - Pass 2
min: 31     avg: 37.2     median: 39 (1%)     max: 40 fps
min: 29     avg: 33.8     median: 33 (1%)     max: 38 fps
X264 HD Benchmark 4.0 - Pass 1
min: 150     avg: 158.7     median: 156 (58%)     max: 169 fps
min: 127     avg: 144.4     median: 140 (52%)     max: 160 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3     avg: 4.4     median: 4 (20%)     max: 4 fps
min: 3     avg: 4.6     median: 4 (20%)     max: 5 fps
TrueCrypt - Serpent Mean 100MB
0.5 GB/s (45%)
0.5 GB/s (45%)
TrueCrypt - Twofish Mean 100MB
0.8 GB/s (25%)
0.7 GB/s (24%)
TrueCrypt - AES Mean 100MB
4.3 GB/s (23%)
min: 3     avg: 4.2     median: 4 (21%)     max: 5 GB/s
Blender 2.79 *
min: 769     avg: 831.9     median: 815 (9%)     max: 937 Seconds
min: 687     avg: 836.6     median: 830 (9%)     max: 1175 Seconds
3DMark 06 - CPU
min: 5637     avg: 6330.4     median: 6316 (42%)     max: 7439 Points
min: 2813     avg: 5994.7     median: 6214 (42%)     max: 7928 Points
Super Pi mod 1.5 XS 1M *
min: 9     avg: 10     median: 9 (2%)     max: 10 Seconds
min: 8     avg: 10.6     median: 8 (2%)     max: 25 Seconds
Super Pi mod 1.5 XS 2M *
22.3 Seconds (1%)
min: 18     avg: 23.7     median: 19 (1%)     max: 54 Seconds
Super Pi Mod 1.5 XS 32M *
min: 542     avg: 561.6     median: 552 (2%)     max: 590 Seconds
min: 491     avg: 611     median: 509 (2%)     max: 1248 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
min: 17880     avg: 21371.2     median: 20796 (29%)     max: 25525 Points
3DMark 11 - Performance Physics 1280x720
min: 5359     avg: 6537.7     median: 6456 (34%)     max: 8443 points
min: 4505     avg: 6962.6     median: 6734 (35%)     max: 9422 points
3DMark - Ice Storm Standard Physics 1280x720
min: 29632     avg: 39420.1     median: 36622 (24%)     max: 49159 Points
min: 30271     avg: 47146.4     median: 50106 (32%)     max: 58024 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 29866     avg: 40819.8     median: 40908 (49%)     max: 48588 Points
min: 35618     avg: 46141     median: 45396 (54%)     max: 57796 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 33925     avg: 50798.6     median: 52451 (61%)     max: 56737 Points
min: 26392     avg: 48927.8     median: 51650 (60%)     max: 60319 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 3569     avg: 5910.6     median: 5651 (14%)     max: 8298 Points
min: 2413     avg: 5839.3     median: 5853 (15%)     max: 8032 Points
3DMark - Fire Strike Physics 1920x1080
min: 5120     avg: 8154.4     median: 8093 (28%)     max: 11278 Points
min: 3409     avg: 8310.7     median: 8354 (29%)     max: 11865 Points
Geekbench 2 - 32 Bit - Stream
min: 10592     avg: 10595.5     median: 10595 (85%)     max: 10599 Points
min: 10320     avg: 10617.5     median: 10617 (86%)     max: 10915 Points
Geekbench 2 - 32 Bit - Memory
min: 8582     avg: 8660     median: 8660 (79%)     max: 8738 Points
min: 7885     avg: 8315.5     median: 8315 (75%)     max: 8746 Points
Geekbench 2 - 32 Bit - Floating Point
min: 11914     avg: 12181     median: 12181 (35%)     max: 12448 Points
min: 11135     avg: 11196.5     median: 11196 (32%)     max: 11258 Points
Geekbench 2 - 32 Bit - Integer
min: 12671     avg: 13099     median: 13099 (40%)     max: 13527 Points
min: 10347     avg: 11305     median: 11305 (35%)     max: 12263 Points
Geekbench 2 - 32 Bit - Total Score
min: 11598     avg: 11639     median: 11639 (45%)     max: 11680 Points
min: 10402     avg: 10600     median: 10600 (41%)     max: 10798 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 12198     avg: 13491.2     median: 13989 (45%)     max: 14138 Points
min: 10521     avg: 12101     median: 12350 (40%)     max: 13703 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 3470     avg: 3666     median: 3674 (76%)     max: 3842 Points
min: 3340     avg: 3964.5     median: 3957 (82%)     max: 4820 Points
Geekbench 3 - 64 Bit Multi-Core Score
min: 12221     avg: 13021     median: 13021 (35%)     max: 13821 Points
min: 11720     avg: 12844.5     median: 12844 (34%)     max: 13969 Points
Geekbench 3 - 64 Bit Single-Core Score
min: 3805     avg: 3906     median: 3906 (79%)     max: 4007 Points
min: 4276     avg: 4294     median: 4294 (87%)     max: 4312 Points
Geekbench 4.0 - Compute OpenCL Score
min: 33778     avg: 39924     median: 39924 (14%)     max: 46070 Points
min: 27660     avg: 36105     median: 38155 (13%)     max: 42500 Points
Geekbench 4.0 - 64 Bit Multi-Core Score
min: 13168     avg: 13768     median: 13768 (46%)     max: 14368 Points
min: 11576     avg: 13366.5     median: 13617 (45%)     max: 14655 Points
Geekbench 4.0 - 64 Bit Single-Core Score
min: 4229     avg: 4417     median: 4417 (74%)     max: 4605 Points
min: 4701     avg: 4750.3     median: 4759 (79%)     max: 4791 Points
Geekbench 4.4 - 64 Bit Single-Core Score
min: 4151     avg: 4541.3     median: 4498 (71%)     max: 4830 Points
min: 2357     avg: 5019.2     median: 5147 (81%)     max: 5547 Points
Geekbench 4.4 - 64 Bit Multi-Core Score
min: 12390     avg: 14122     median: 14398 (33%)     max: 16249 Points
min: 8142     avg: 14136.4     median: 13757 (31%)     max: 16968 Points
Mozilla Kraken 1.1 - Total Score *
min: 850     avg: 1171.8     median: 1200 (2%)     max: 1245 ms
min: 730     avg: 1084.7     median: 1047 (2%)     max: 2621 ms
Sunspider - 1.0 Total Score *
min: 83     avg: 93.3     median: 97 (1%)     max: 99 ms
min: 80     avg: 153.6     median: 152 (2%)     max: 228 ms
Octane V2 - Total Score
min: 12842     avg: 30894.1     median: 31918 (61%)     max: 34055 Points
min: 13935     avg: 35105.4     median: 35240 (67%)     max: 49795 Points

Average Benchmarks Intel Core i5-8265U → 100%

Average Benchmarks Intel Core i7-8565U → 102%

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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)