Notebookcheck

Intel Core i7-8565U

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.

SeriesIntel Core i7
CodenameWhiskey Lake-U
Series: Core i7 Whiskey Lake-U
Intel Core i7-8665U (compare)1900 - 4800 MHz4 / 88 MB
» Intel Core i7-8565U1800 - 4600 MHz4 / 88 MB
Clock Rate1800 - 4600 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Max. Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology14 nm
SocketBGA1528
FeaturesDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel UHD Graphics 620 (300 - 1150 MHz)
64 Bit64 Bit support
Announcement Date08/21/2018

Benchmarks

Cinebench R15 - CPU Multi 64Bit
min: 360     avg: 592.5     median: 576 (13%)     max: 815 Points
Cinebench R15 - CPU Single 64Bit
min: 73     avg: 170.6     median: 175 (80%)     max: 193 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 5     avg: 6.4     median: 6 (18%)     max: 7 Points
Cinebench R11.5 - CPU Single 64Bit
min: 0     avg: 1.8     median: 1 (50%)     max: 2 Points
Cinebench R10 - Rendering Single 32Bit
min: 2682     avg: 6559.3     median: 6682 (73%)     max: 8906 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 14912     avg: 18055.6     median: 17035 (34%)     max: 23118 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 17901     avg: 22018.5     median: 21661 (28%)     max: 26851 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 6936     avg: 8428.8     median: 8809 (85%)     max: 9160 Points
wPrime 2.0x - 1024m *
min: 263     avg: 546.4     median: 385 (5%)     max: 1896 seconds
wPrime 2.0x - 32m *
min: 6     avg: 16     median: 9 (2%)     max: 61 seconds
WinRAR - Result
min: 3537     avg: 4129.3     median: 4291 (50%)     max: 4626 KB/s
7-Zip 18.03 - 7z b 4
min: 10531     avg: 18214     median: 19178 (23%)     max: 24847 MIPS
7-Zip 18.03 - 7z b 4 -mmt1
min: 2029     avg: 4565.1     median: 4737 (68%)     max: 5923 MIPS
X264 HD Benchmark 4.0 - Pass 2
min: 29     avg: 33.8     median: 33 (1%)     max: 38 fps
X264 HD Benchmark 4.0 - Pass 1
min: 127     avg: 144.4     median: 140 (52%)     max: 160 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3     avg: 4.6     median: 4 (20%)     max: 5 fps
TrueCrypt - Serpent Mean 100MB
0.5 GB/s (45%)
TrueCrypt - Twofish Mean 100MB
0.7 GB/s (24%)
TrueCrypt - AES Mean 100MB
min: 3     avg: 4.2     median: 4 (21%)     max: 5 GB/s
Blender 2.79 *
min: 687     avg: 844.9     median: 840 (9%)     max: 1175 Seconds
3DMark 06 - CPU
min: 2813     avg: 5994.7     median: 6214 (42%)     max: 7928 Points
Super Pi mod 1.5 XS 1M *
min: 8     avg: 10.6     median: 8 (2%)     max: 25 Seconds
Super Pi mod 1.5 XS 2M *
min: 18     avg: 23.7     median: 19 (1%)     max: 54 Seconds
Super Pi Mod 1.5 XS 32M *
min: 491     avg: 611     median: 509 (2%)     max: 1248 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
min: 17880     avg: 21371.2     median: 20796 (31%)     max: 25525 Points
3DMark 11 - Performance Physics 1280x720
min: 4505     avg: 6940.6     median: 6729 (36%)     max: 9422 points
3DMark - Ice Storm Standard Physics 1280x720
min: 30271     avg: 46165.4     median: 49930 (32%)     max: 58024 Points
3DMark - Ice Storm Extreme Physics 1920x1080
min: 35618     avg: 44557.2     median: 41475 (49%)     max: 57796 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 26392     avg: 48629.6     median: 51250 (59%)     max: 60319 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 2413     avg: 5833.5     median: 5853 (15%)     max: 8032 Points
3DMark - Fire Strike Physics 1920x1080
min: 3409     avg: 8294.9     median: 8354 (29%)     max: 11865 Points
Geekbench 2 - 32 Bit - Stream
min: 10320     avg: 10617.5     median: 10617 (86%)     max: 10915 Points
Geekbench 2 - 32 Bit - Memory
min: 7885     avg: 8315.5     median: 8315 (75%)     max: 8746 Points
Geekbench 2 - 32 Bit - Floating Point
min: 11135     avg: 11196.5     median: 11196 (32%)     max: 11258 Points
Geekbench 2 - 32 Bit - Integer
min: 10347     avg: 11305     median: 11305 (35%)     max: 12263 Points
Geekbench 2 - 32 Bit - Total Score
min: 10402     avg: 10600     median: 10600 (41%)     max: 10798 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 10521     avg: 12261.1     median: 12463 (40%)     max: 13703 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 3568     avg: 4033.9     median: 3965 (82%)     max: 4820 Points