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 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 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 Architecture x86 Announcement Date 04/16/2019 Product Link (external) ark.intel.com
Benchmarks Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
30.1 pt (42%)
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Cinebench R23 - Cinebench R23 Multi Core
2729 Points (3%)
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Cinebench R23 - Cinebench R23 Single Core
988 Points (42%)
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Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 379 avg: 427 median: 427 (47%) max: 472 Points
CPU TDP ? TDP 16 W 100% 86%
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Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1050 avg: 1329 median: 1346 (3%) max: 1530 Points
CPU TDP ? TDP 16 W 100% 75%
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Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 458 avg: 612 median: 670 (4%) max: 701 Points
CPU TDP ? TDP 16 W 100% 72%
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0 40 80 120 160 200 240 280 320 360 400 440 480 520 560 600 640 680 720 Tooltip Prime Computer PrimeMini 5 i7 NUC8v7PNB: Ø451 (440.42-458.07)
Dynabook Tecra X50-F: Ø491 (471.7-499.81)
Dell Latitude 7400 2-in-1: Ø550 (527.93-598.95)
Dell Latitude 7300-P99G: Ø531 (513-670)
Dell Latitude 7400-8N6DH: Ø544 (523.43-667.87)
Dell Latitude 5500: Ø611 (599.53-729.94)
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE: Ø632 (574.56-701.36)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 143 avg: 174 median: 180 (54%) max: 199 Points
CPU TDP ? TDP 16 W 100% 87%
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Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
4.9 Points (6%)
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Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
1.7 Points (42%)
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Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6716 avg: 6872 median: 6872 (42%) max: 7028 points
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Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 16602 avg: 18427 median: 18426.5 (13%) max: 20251 points
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wPrime 2.10 - wPrime 2.0 1024m *
429.3 s (5%)
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VIA C3-M C3-M-1200
wPrime 2.10 - wPrime 2.0 32m *
10 s (2%)
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3418 points (5%)
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7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 14665 avg: 18146 median: 18298 (11%) max: 20023 MIPS
CPU TDP ? TDP 16 W 100% 77%
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7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4338 avg: 4684 median: 4705.5 (56%) max: 4988 MIPS
CPU TDP ? TDP 16 W 100% 90%
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X264 HD Benchmark 4.0 - x264 Pass 2
32 fps (11%)
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X264 HD Benchmark 4.0 - x264 Pass 1
139 fps (32%)
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HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 3.82 avg: 4.5 median: 4.5 (8%) max: 5.2 fps
CPU TDP ? TDP 16 W 100% 81%
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max:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 Tooltip Prime Computer PrimeMini 5 i7 NUC8v7PNB: Ø4.12 (0.6-7.83)
Dell Latitude 7400-8N6DH: Ø5.13 (0.75-11.5)
Dell Latitude 5500: Ø5.77 (0.93-13.5)
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE: Ø5.89 (0.84-12.3)
TrueCrypt - TrueCrypt Serpent
0.3 GB/s (0%)
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TrueCrypt - TrueCrypt Twofish
0.5 GB/s (8%)
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TrueCrypt - TrueCrypt AES
2.6 GB/s (7%)
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Blender - Blender 2.79 BMW27 CPU *
min: 716 avg: 801 median: 754.5 (5%) max: 978 Seconds
CPU TDP ? TDP 16 W 102% 100%
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R Benchmark 2.5 - R Benchmark 2.5 *
0.9 sec (19%)
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3DMark 06 - CPU - 3DMark 06 - CPU
min: 6202 avg: 6365 median: 6365 (14%) max: 6528 Points
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Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
8 s (2%)
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VIA C3-M C3-M-1200
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
19 s (1%)
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Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
521 s (2%)
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VIA C3-M C3-M-1200
3DMark 11 - 3DM11 Performance Physics
min: 6266 avg: 7143 median: 6758 (18%) max: 8676 Points
CPU TDP ? TDP 16 W 100% 87%
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3DMark - 3DMark Ice Storm Physics
56356 Points (46%)
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3DMark - 3DMark Ice Storm Extreme Physics
56510 Points (46%)
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3DMark - 3DMark Ice Storm Unlimited Physics
min: 54189 avg: 59812 median: 60829 (51%) max: 63399 Points
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3DMark - 3DMark Cloud Gate Physics
min: 5234 avg: 6225 median: 5948 (15%) max: 7398 Points
CPU TDP ? TDP 16 W 100% 89%
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3DMark - 3DMark Fire Strike Standard Physics
min: 6860 avg: 8356 median: 8188 (15%) max: 10574 Points
CPU TDP ? TDP 16 W 100% 80%
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3DMark - 3DMark Time Spy CPU
min: 2638 avg: 2872 median: 2723 (11%) max: 3405 Points
CPU TDP ? TDP 16 W 100% 89%
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Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
1039 points (44%)
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Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
2671 points (5%)
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Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
1196 points (5%)
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Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
3453 points (11%)
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Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
min: 4686 avg: 5236 median: 5342.5 (53%) max: 5574 points
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Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 11206 avg: 15544 median: 16347 (18%) max: 18275 points
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Geekbench 3 - Geekbench 3 32 Bit Multi-Core
14277 points (25%)
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Geekbench 3 - Geekbench 3 32 Bit Single-Core
3887 points (76%)
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Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 1016 avg: 1072 median: 1067.5 (1%) max: 1136 ms
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Sunspider - Sunspider 1.0 Total Score *
235 ms (3%)
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Octane V2 - Octane V2 Total Score
min: 30142 avg: 33976 median: 34548 (31%) max: 36667 Points
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Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
27.4 Watt (5%)
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Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
21.9 Points per Watt (16%)
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- 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 (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 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'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 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 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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Klaus Hinum, 2019-04-16 (Update: 2019-04- 9)