Intel Core i7-8665U

The Intel Core i7-8665U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation that was announced in April 2019 as part of two vPro enabled WHL-U processors. 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 i7-8665U offers e.g. high Turbo clock speeds of 4,8 GHz (versus 4 GHz of the i7-8550U) for a single core. 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 should support Thermal Velocity Boost (like the Core i7-8565U, the predecessor).

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 i7-8665U 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. Due to the 200 MHz higher Turbo Boost, the 8665U should outperform the i7-8565U (see for benchmarks).

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.

Series

Intel Core i7

Codename

Whiskey Lake-U

Series: Core i7 Whiskey Lake-U

» Intel Core i7-8665U	1900 - 4800 MHz	4 / 8	8 MB
Intel Core i7-8565U (compare)	1800 - 4600 MHz	4 / 8	8 MB

Clock Rate

1900 - 4800 MHz

Level 1 Cache

256 KB

Level 2 Cache

1 MB

Level 3 Cache

8 MB

Number of Cores / Threads

4 / 8

Max. Power Consumption (TDP = Thermal Design Power)

15 Watt

Manufacturing Technology

14 nm

Max. Temperature

100 °C

Socket

BGA1528

Features

Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI

GPU

Intel UHD Graphics 620 (300 - 1150 MHz)

64 Bit

64 Bit support

Announcement Date

04/16/2019

Product Link (external)

Intel Core i7 8665U

Benchmarks

Cinebench R15 - CPU Multi 64Bit

min: 496 avg: 602.3 median: 602 (14%) max: 701 Points

+ 6 benchmarks and specifications + Show comparison chart

Cinebench R15 - CPU Single 64Bit

min: 143 avg: 177.3 median: 180 (83%) max: 199 Points

+ 6 benchmarks and specifications + Show comparison chart

Cinebench R11.5 - CPU Multi 64Bit

4.9 Points (11%)

+ 1 benchmarks and specifications + Show comparison chart

Cinebench R11.5 - CPU Single 64Bit

1.7 Points (84%)

+ 1 benchmarks and specifications + Show comparison chart

Cinebench R10 - Rendering Single 32Bit

min: 6716 avg: 6872 median: 6872 (75%) max: 7028 Points

+ 2 benchmarks and specifications + Show comparison chart

Cinebench R10 - Rendering Multiple CPUs 32Bit

min: 16602 avg: 18426.5 median: 18426 (28%) max: 20251 Points

+ 2 benchmarks and specifications + Show comparison chart

wPrime 2.0x - 1024m *

429.3 seconds (5%)

+ 1 benchmarks and specifications + Show comparison chart

wPrime 2.0x - 32m *

10 seconds (2%)

+ 1 benchmarks and specifications + Show comparison chart

WinRAR - Result

3418 KB/s (40%)

+ 1 benchmarks and specifications + Show comparison chart

7-Zip 18.03 - 7z b 4

min: 17731 avg: 19016.8 median: 19156 (18%) max: 20023 MIPS

+ 4 benchmarks and specifications + Show comparison chart

7-Zip 18.03 - 7z b 4 -mmt1

min: 4685 avg: 4799.7 median: 4726 (68%) max: 4988 MIPS

+ 3 benchmarks and specifications + Show comparison chart

X264 HD Benchmark 4.0 - Pass 2

32 fps (1%)

+ 1 benchmarks and specifications + Show comparison chart

X264 HD Benchmark 4.0 - Pass 1

139 fps (51%)

+ 1 benchmarks and specifications + Show comparison chart

HWBOT x265 Benchmark v2.2 - 4k Preset

min: 4 avg: 4.7 median: 4 (13%) max: 5 fps

+ 4 benchmarks and specifications + Show comparison chart

TrueCrypt - Serpent Mean 100MB

0.3 GB/s (14%)

+ 1 benchmarks and specifications + Show comparison chart

TrueCrypt - Twofish Mean 100MB

0.5 GB/s (15%)

+ 1 benchmarks and specifications + Show comparison chart

TrueCrypt - AES Mean 100MB

2.6 GB/s (13%)

+ 1 benchmarks and specifications + Show comparison chart

Blender 2.79 *

min: 716 avg: 741.7 median: 740 (8%) max: 769 Seconds

+ 3 benchmarks and specifications + Show comparison chart

3DMark 06 - CPU

min: 6202 avg: 6365 median: 6365 (43%) max: 6528 Points

+ 2 benchmarks and specifications + Show comparison chart

Super Pi mod 1.5 XS 1M *

8 Seconds (2%)

+ 1 benchmarks and specifications + Show comparison chart

Super Pi mod 1.5 XS 2M *

19 Seconds (1%)

+ 1 benchmarks and specifications + Show comparison chart

Super Pi Mod 1.5 XS 32M *

521 Seconds (2%)

+ 1 benchmarks and specifications + Show comparison chart

3DMark 11 - Performance Physics 1280x720

min: 6266 avg: 7281.2 median: 7055 (36%) max: 8676 points

+ 6 benchmarks and specifications + Show comparison chart

3DMark - Ice Storm Standard Physics 1280x720

56356 Points (36%)

+ 1 benchmarks and specifications + Show comparison chart

3DMark - Ice Storm Extreme Physics 1920x1080

56510 Points (67%)

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3DMark - Ice Storm Unlimited Physics 1280x720 offscreen

min: 54189 avg: 59811.5 median: 60829 (70%) max: 63399 Points

+ 4 benchmarks and specifications + Show comparison chart

3DMark - Cloud Gate Standard Physics 1280x720

min: 5234 avg: 6324.7 median: 6228 (16%) max: 7398 Points

+ 6 benchmarks and specifications + Show comparison chart

3DMark - Fire Strike Physics 1920x1080

min: 7758 avg: 8605.3 median: 8322 (26%) max: 10574 Points

+ 6 benchmarks and specifications + Show comparison chart

Geekbench 3 - 32 Bit Multi-Core Score

14277 Points (18%)

+ 1 benchmarks and specifications + Show comparison chart

Geekbench 3 - 32 Bit Single-Core Score

3887 Points (80%)

+ 1 benchmarks and specifications + Show comparison chart

Geekbench 4.4 - 64 Bit Single-Core Score

min: 4686 avg: 5236.3 median: 5342 (84%) max: 5574 Points

+ 4 benchmarks and specifications + Show comparison chart

Geekbench 4.4 - 64 Bit Multi-Core Score

min: 11206 avg: 15543.8 median: 16347 (28%) max: 18275 Points

+ 4 benchmarks and specifications + Show comparison chart

Mozilla Kraken 1.1 - Total Score *

min: 1015 avg: 1071.6 median: 1067 (2%) max: 1135 ms

+ 4 benchmarks and specifications + Show comparison chart

Sunspider - 1.0 Total Score *

235 ms (3%)

+ 1 benchmarks and specifications + Show comparison chart

Octane V2 - Total Score

min: 30142 avg: 33976.2 median: 34548 (66%) max: 36667 Points

+ 4 benchmarks and specifications + Show comparison chart

Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *

27.4 Watt (5%)

+ 1 benchmarks and specifications + Show comparison chart

- Range of benchmark values for this graphics card

- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list:

Model	GPU	Memory	Core / Memory	GPU Memory	Value
Dynabook Tecra X50-F	UHD Graphics 620	16384 MB		1024MB Intel UHD Graphics 620 26.20.100.6860	496
Dell Latitude 7400 2-in-1	UHD Graphics 620	16384 MB	300 - 1150 / MHz	25.20.100.6577	524
Dell Latitude 7300-P99G	UHD Graphics 620	32768 MB			531
Dell Latitude 7400-8N6DH	UHD Graphics 620	16384 MB	300-1150 / 1200 MHz	Single-Channel 26.20.100.6860	674
Dell Latitude 5500	UHD Graphics 620	32768 MB			688
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE	UHD Graphics 620	16384 MB			701

Model	GPU	Memory	Core / Memory	GPU Memory	Value
Dynabook Tecra X50-F	UHD Graphics 620	16384 MB		1024MB Intel UHD Graphics 620 26.20.100.6860	143
Dell Latitude 7400 2-in-1	UHD Graphics 620	16384 MB	300 - 1150 / MHz	25.20.100.6577	176
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE	UHD Graphics 620	16384 MB			180
Dell Latitude 7400-8N6DH	UHD Graphics 620	16384 MB	300-1150 / 1200 MHz	Single-Channel 26.20.100.6860	181
Dell Latitude 7300-P99G	UHD Graphics 620	32768 MB			185
Dell Latitude 5500	UHD Graphics 620	32768 MB			199

Model	GPU	Memory	Core / Memory	GPU Memory	Value
Dell Latitude 7400 2-in-1	UHD Graphics 620	16384 MB	300 - 1150 / MHz	25.20.100.6577	4.88

Model	GPU	Memory	Core / Memory	GPU Memory	Value
Dell Latitude 7400 2-in-1	UHD Graphics 620	16384 MB	300 - 1150 / MHz	25.20.100.6577	1.67

Model	GPU	Memory	Core / Memory	GPU Memory	Value
Dell Latitude 7400 2-in-1	UHD Graphics 620	16384 MB	300 - 1150 / MHz	25.20.100.6577	6716
Dell Latitude 7400-8N6DH	UHD Graphics 620	16384 MB	300-1150 / 1200 MHz	Single-Channel 26.20.100.6860	7028