i7-7660U vs i7-7820HK

Aggregate performance score

Core i7-7820HK
2017
4 cores / 8 threads, 45 Watt
4.66
+81.3%
Core i7-7660U
2017
2 cores / 4 threads, 15 Watt
2.57

Core i7-7820HK outperforms Core i7-7660U by an impressive 81% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7820HK and Core i7-7660U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking12791729
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Core i7
Power efficiency9.7616.15
Architecture codenameKaby Lake-H (2017)Kaby Lake (2016−2019)
Release date3 January 2017 (7 years ago)3 January 2017 (7 years ago)
Launch price (MSRP)$378$415

Detailed specifications

Core i7-7820HK and Core i7-7660U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)2 (Dual-core)
Threads84
Base clock speed2.9 GHz2.5 GHz
Boost clock speed3.9 GHz4 GHz
Bus typeDMI 3.0OPI
Bus rate8 GT/s4 GT/s
Multiplier2925
L1 cache256 KB128 KB
L2 cache1 MB512 KB
L3 cache8 MB (shared)4 MB
Chip lithography14 nm14 nm
Die size126 mm2no data
Maximum core temperature100 °C100 °C
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core i7-7820HK and Core i7-7660U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1440FCBGA1356
Power consumption (TDP)45 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820HK and Core i7-7660U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
eDRAMno data64 MB
Speed Shift++
My WiFi++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX++
Idle States++
Thermal Monitoring++
Flex Memory Access++
SIPP-+
Smart Response++

Security technologies

Core i7-7820HK and Core i7-7660U technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB++
Secure Key++
MPX++
Identity Protection++
SGXYes with Intel® MEYes with Intel® ME
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820HK and Core i7-7660U are enumerated here.

AMD-V++
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820HK and Core i7-7660U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4
Maximum memory size64 GB32 GB
Max memory channels22
Maximum memory bandwidth38.397 GB/s34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 630Intel Iris Plus Graphics 640
Max video memory64 GB32 GB
Quick Sync Video++
Clear Video++
Clear Video HD++
Graphics max frequency1.1 GHz1.1 GHz
InTru 3D++

Graphics interfaces

Available interfaces and connections of Core i7-7820HK and Core i7-7660U integrated GPUs.

Number of displays supported33
eDP++
DisplayPort++
HDMI++
DVI++

Graphics image quality

Maximum display resolutions supported by Core i7-7820HK and Core i7-7660U integrated GPUs, including resolutions over different interfaces.

4K resolution support++
Max resolution over HDMI 1.44096x2304@30Hz4096x2304@30Hz
Max resolution over eDP4096x2304@60Hz4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz4096x2304@60Hz
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i7-7820HK and Core i7-7660U integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.5

Peripherals

Specifications and connection of peripherals supported by Core i7-7820HK and Core i7-7660U.

PCIe version3.03.0
PCI Express lanes1612

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-7820HK 4.66
+81.3%
i7-7660U 2.57

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-7820HK 7368
+80.8%
i7-7660U 4075

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-7820HK 1271
+9.9%
i7-7660U 1156

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-7820HK 4156
+80%
i7-7660U 2309

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-7820HK 6182
+0.2%
i7-7660U 6170

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-7820HK 23047
+66.9%
i7-7660U 13809

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-7820HK 8038
+53.8%
i7-7660U 5227

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-7820HK 8.65
+49.1%
i7-7660U 12.9

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-7820HK 8
+88.6%
i7-7660U 4

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i7-7820HK 770
+90.8%
i7-7660U 404

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i7-7820HK 162
+2.2%
i7-7660U 159

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-7820HK 1.84
i7-7660U 1.87
+1.6%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-7820HK 4.2
+75%
i7-7660U 2.4

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-7820HK 47
+85.4%
i7-7660U 25

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-7820HK 179
+31%
i7-7660U 137

Geekbench 4.0 64-bit multi-core

i7-7820HK 15309
+71%
i7-7660U 8952

Geekbench 4.0 64-bit single-core

i7-7820HK 4905
+6.6%
i7-7660U 4603

Gaming performance

Pros & cons summary


Performance score 4.66 2.57
Integrated graphics card 3.10 3.86
Physical cores 4 2
Threads 8 4
Power consumption (TDP) 45 Watt 15 Watt

i7-7820HK has a 81.3% higher aggregate performance score, and 100% more physical cores and 100% more threads.

i7-7660U, on the other hand, has 24.5% faster integrated GPU, and 200% lower power consumption.

The Core i7-7820HK is our recommended choice as it beats the Core i7-7660U in performance tests.


Should you still have questions on choice between Core i7-7820HK and Core i7-7660U, ask them in Comments section, and we shall answer.

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Intel Core i7-7820HK
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Community ratings

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Questions & comments

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