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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.

SeriesIntel Core i7
CodenameWhiskey Lake-U

Series: Core i7 Whiskey Lake-U

Intel Core i7-8665U « 1.9 - 4.8 GHz4 / 8 cores8 MB L3
Intel Core i7-8565U compare1.8 - 4.6 GHz4 / 8 cores8 MB L3
Clock Rate1900 - 4800 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology14 nm
Max. Temperature100 °C
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
Architecturex86
Announcement Date04/16/2019
Product Link (external)ark.intel.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
30.1 pt (42%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 458     avg: 612     median: 670 (4%)     max: 701 Points
04080120160200240280320360400440480520560600640680720Tooltip
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 16602     avg: 18427     median: 18426.5 (13%)     max: 20251 points
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 3.82     avg: 4.5     median: 4.5 (8%)     max: 5.2 fps
012345678910111213Tooltip
3DMark - 3DMark Ice Storm Unlimited Physics
min: 54189     avg: 59812     median: 60829 (51%)     max: 63399 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 1016     avg: 1072     median: 1067.5 (1%)     max: 1136 ms
Octane V2 - Octane V2 Total Score
min: 30142     avg: 33976     median: 34548 (31%)     max: 36667 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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Reviews for the Intel Core i7-8665U processor

Prime Computer PrimeMini 5 i7 Review. (Image Source: Prime Computer)

Prime Computer PrimeMini 5 i7 (Intel Provo Canyon NUC8v7PNB) Mini PC Review: Passively-Cooled Whiskey Lake for Enterprise

Featuring a passively-cooled Whiskey Lake vPro processor and good connectivity options, the Prime Computer PrimeMini 5 aims to offer a sustainable, low-maintena...
Intel Core i7-8665U | Intel UHD Graphics 620 | | 1.3 kg
Dynabook Tecra X50 Laptop Review: A light Ultrabook with light endurance

Dynabook Tecra X50 Laptop Review: A light Ultrabook with light endurance

The Tecra is back under a new name. The Dynabook Tecra X50 retains much of the Tecra flair for thinness but ultimately falls flat. While the X50 is a competent ...
Intel Core i7-8665U | Intel UHD Graphics 620 | 15.60" | 1.4 kg
Dell Latitude 7400 Laptop Review: Even the high end is not free from weaknesses

Dell Latitude 7400 Laptop Review: Even the high end is not free from weaknesses

Dell's 14-inch business laptop boasts a long battery life, an excellent keyboard and a fast NVMe SSD. The matte IPS display, however, could have a greater maxim...
Intel Core i7-8665U | Intel UHD Graphics 620 | 14.00" | 1.5 kg
Dell Latitude 7300 Laptop Review: business subnotebook falls short of its performance goals

Dell Latitude 7300 Laptop Review: business subnotebook falls short of its performance goals

Intel's Whiskey Lake CPUs found their way into Dell's Latitude series. The redesigned Latitude 7300 features one as well, and it surprised us with its decent up...
Intel Core i7-8665U | Intel UHD Graphics 620 | 13.30" | 1.4 kg
Dell Latitude 5500

Dell Latitude 5500 Review: A business laptop with many options

Buyers of the Latitude 5500 have the choice among numerous equipment configurations that offer suitable elements for almost any demand in the business sector. I...
Intel Core i7-8665U | Intel UHD Graphics 620 | 15.60" | 1.9 kg

Lenovo ThinkPad X1 Carbon 2019-20QE000VGE: Intel UHD Graphics 620, 14.00", 1.1 kg
  Review » Lenovo ThinkPad X1 Carbon 2019 WQHD Live Review: Still the reference among business laptops?

Dell Latitude 7400 2-in-1: Intel UHD Graphics 620, 14.00", 1.5 kg
  Review » Dell Latitude 7400 2-in-1 (i7-8665U) Convertible Review

Lenovo ThinkPad X1 Yoga G4-20QG000UGE: Intel UHD Graphics 620, 14.00", 1.4 kg
  External Review » Lenovo ThinkPad X1 Yoga G4-20QG000UGE

HP Elite Dragonfly-8UY50UT: Intel UHD Graphics 620, 13.30", 1.1 kg
  External Review » HP Elite Dragonfly-8UY50UT

Lenovo ThinkPad P53s-20N6001JGE: NVIDIA Quadro P520, 15.60", 1.8 kg
  External Review » Lenovo ThinkPad P53s-20N6001JGE

HP Zbook 14u G6-7JM81UT: AMD Radeon Pro WX 3200, 14.00", 1.5 kg
  External Review » HP Zbook 14u G6-7JM81UT

Dell Latitude 5300-s014l530013us: Intel UHD Graphics 620, 13.30", 1.4 kg
  External Review » Dell Latitude 5300-s014l530013us

Dell Latitude 5500: Intel UHD Graphics 620, 15.60", 1.9 kg
  External Review » Dell Latitude 5500

Lenovo ThinkPad P43s-20RH001AMH: NVIDIA Quadro P520, 14.00", 1.5 kg
  External Review » Lenovo ThinkPad P43s-20RH001AMH

Dell Latitude 7300-P99G: Intel UHD Graphics 620, 13.30", 1.4 kg
  External Review » Dell Latitude 7300-P99G

Lenovo ThinkPad X1 Carbon 2019-20QE000VGE: Intel UHD Graphics 620, 14.00", 1.1 kg
  External Review » Lenovo ThinkPad X1 Carbon 2019-20QE000VGE

Fujitsu Lifebook U939X, i7-8665U: Intel UHD Graphics 620, 13.30", 1 kg
  External Review » Fujitsu Lifebook U939X, i7-8665U

Dell Latitude 7200 2-in-1 (i7-8665U): Intel UHD Graphics 620, 12.30", 0.9 kg
  External Review » Dell Latitude 7200 2-in-1 (i7-8665U)

Fujitsu Lifebook U939: Intel UHD Graphics 620, 13.30", 0.9 kg
  External Review » Fujitsu Lifebook U939

Dell Latitude 7400-8N6DH: Intel UHD Graphics 620, 14.00", 1.5 kg
  External Review » Dell Latitude 7400-8N6DH

Dell Latitude 7400 2-in-1: Intel UHD Graphics 620, 14.00", 1.5 kg
  External Review » Dell Latitude 7400 2-in-1

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» Mobile CPU Comparison
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Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Core i7

» Intel Core i7-8809G
   4x 3.1 GHz - 4.2 GHz
» Intel Core i7-8709G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8706G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8705G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-4940MX
   4x 3.1 GHz - 4 GHz
» Intel Core i7-6920HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-5950HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4930MX
   4x 3 GHz - 3.9 GHz
» Intel Core i7-6970HQ
   4x 2.8 GHz - 3.7 GHz
» Intel Core i7-6870HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-4980HQ
   4x 2.8 GHz - 4 GHz
» Intel Core i7-4910MQ
   4x 2.9 GHz - 3.9 GHz
» Intel Core i7-5850HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-3940XM
   4x 3 GHz - 3.9 GHz
» Intel Core i7-5700HQ
   4x 2.7 GHz - 3.5 GHz
» Intel Core i7-5750HQ
   4x 2.5 GHz - 3.4 GHz
» Intel Core i7-6820HK
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6820HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6770HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4900MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4960HQ
   4x 2.6 GHz - 3.8 GHz
» Intel Core i7-6700HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4810MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4870HQ
   4x 2.5 GHz - 3.7 GHz
» Intel Core i7-8665U
   4x 1.9 GHz - 4.8 GHz
» Intel Core i7-3920XM
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4800MQ
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4950HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4860HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4720HQ
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-3840QM
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4850HQ
   4x 2.3 GHz - 3.5 GHz
» Intel Core i7-4710HQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-4710MQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-8565U
   4x 1.8 GHz - 4.6 GHz
» Intel Core i7-4770HQ
   4x 2.2 GHz - 3.4 GHz
» Intel Core i7-3820QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3740QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3720QM
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-4700HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4700MQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4760HQ
   4x 2.1 GHz - 3.3 GHz
» Intel Core i7-4722HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-2960XM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4712HQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4712MQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4750HQ
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3635QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-3630QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4702HQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-4702MQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2860QM
   4x 2.5 GHz - 3.6 GHz
» Intel Core i7-2920XM
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-3615QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3610QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3632QM
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2760QM
   4x 2.4 GHz - 3.5 GHz
» Intel Core i7-2820QM
   4x 2.3 GHz - 3.4 GHz
» Intel Core i7-3612QM
   4x 2.1 GHz - 3.1 GHz
» Intel Core i7-2720QM
   4x 2.2 GHz - 3.3 GHz
» Intel Core i7-2675QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-2670QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-6567U
   2x 3.3 GHz - 3.6 GHz
» Intel Core i7-2635QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-2630QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-5557U
   2x 3.1 GHz - 3.4 GHz
» Intel Core i7-4610M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-940XM
   4x 2.13 GHz - 3.33 GHz
» Intel Core i7-4600M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-4578U
   2x 3 GHz - 3.5 GHz
» Intel Core i7-920XM
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3540M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-4558U
   2x 2.8 GHz - 3.3 GHz
» Intel Core i7-6600U
   2x 2.6 GHz - 3.4 GHz
» Intel Core i7-6650U
   2x 2.2 GHz - 3.4 GHz
» Intel Core i7-6560U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-3520M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-6500U
   2x 2.5 GHz - 3.1 GHz
» Intel Core i7-5600U
   2x 2.6 GHz - 3.2 GHz
» Intel Core i7-5650U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-2640M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i7-5500U
   2x 2.4 GHz - 3 GHz
» Intel Core i7-5550U
   2x 2 GHz - 3 GHz
» Intel Core i7-840QM
   4x 1.86 GHz - 3.2 GHz
» Intel Core i7-2620M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i7-4600U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4650U
   2x 1.7 GHz - 3.3 GHz
» Intel Core i7-3687U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4510U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-640M
   2x 2.8 GHz - 3.46 GHz
» Intel Core i7-820QM
   4x 1.73 GHz - 3.06 GHz
» Intel Core i7-3667U
   2x 2 GHz - 3.2 GHz
» Intel Core i7-4500U
   2x 1.8 GHz - 3 GHz
» Intel Core i7-4550U
   2x 1.5 GHz - 3 GHz
» Intel Core i7-740QM
   4x 1.73 GHz - 2.93 GHz
» Intel Core i7-3537U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-3517U
   2x 1.9 GHz - 3 GHz
» Intel Core i7-620M
   2x 2.66 GHz - 3.33 GHz
» Intel Core i7-720QM
   4x 1.6 GHz - 2.8 GHz
» Intel Core i7-2649M
   2x 2.3 GHz - 3.2 GHz
» Intel Core i7-4610Y
   2x 1.7 GHz - 2.9 GHz
» Intel Core i7-2629M
   2x 2.1 GHz - 3 GHz
» Intel Core i7-2677M
   2x 1.8 GHz - 2.9 GHz
» Intel Core i7-660LM
   2x 2.27 GHz - 3.07 GHz
» Intel Core i7-2637M
   2x 1.7 GHz - 2.8 GHz
» Intel Core i7-2657M
   2x 1.6 GHz - 2.7 GHz
» Intel Core i7-3689Y
   2x 1.5 GHz - 2.6 GHz
» Intel Core i7-2617M
   2x 1.5 GHz - 2.6 GHz
» Intel Core i7-640LM
   2x 2.13 GHz - 2.93 GHz
» Intel Core i7-620LM
   2x 2 GHz - 2.8 GHz
» Intel Core i7-680UM
   2x 1.47 GHz - 2.53 GHz
» Intel Core i7-660UM
   2x 1.33 GHz - 2.4 GHz
» Intel Core i7-640UM
   2x 1.2 GHz - 2.27 GHz
» Intel Core i7-620UM
   2x 1.06 GHz - 2.13 GHz

Surrounding CPUs

+ AMD Ryzen 7 3700U
   4x 2.3 GHz - 4 GHz
+ AMD Ryzen 7 PRO 3700U
   4x 2.3 GHz - 4 GHz
+ AMD Ryzen 3 7335U
   4x 3 GHz - 4.3 GHz
+ Intel Core i5-10310U
   4x 1.7 GHz - 4.4 GHz
+ Intel Core i5-1035G1
   4x 1 GHz - 3.6 GHz
» Intel Core i7-8665U
   4x 1.9 GHz - 4.8 GHz
- Intel Core i7-8650U
   4x 1.9 GHz - 4.2 GHz
- Intel Core i5-10210U
   4x 1.6 GHz - 4.2 GHz
- Intel Core i7-3920XM
   4x 2.9 GHz - 3.8 GHz
- Intel Core i7-4800MQ
   4x 2.7 GHz - 3.7 GHz
- Intel Core i7-4950HQ
   4x 2.4 GHz - 3.6 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7-8665U SoC (Whiskey Lake)
Klaus Hinum, 2019-04-16 (Update: 2019-04- 9)