Intel Core i7-7820HK vs Intel Core i7-6700K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-7820HK or Intel Core i7-7820HK – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-7820HK features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q1/2017 and belongs to the 7 generation of the Intel Core i7 series.
To use the Intel Core i7-7820HK, you'll need a motherboard with a BGA 1440 socket.
The Intel Core i7-6700K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q3/2015 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6700K, you'll need a motherboard with a LGA 1151 socket.
Intel Core i 7000H Group Intel Core i 6000
7 Generation 6
Mobile Segment Desktop / Server
Intel Core i7-7820HK Name Intel Core i7-6700K
Intel Core i7 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-7820HK has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-7820HK is 2.9 GHz
and turbo frequency for one core is 3.9 GHz.
The Intel Core i7-6700K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-6700K is 4.0 GHz
and turbo frequency for one core is 4.2 GHz.
8 Threads 8
4x Cores 4x
4 CPU Cores 4
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
3.9 GHz Turbo Frequency (1 core) 4.2 GHz
2.9 GHz Frequency 4.0 GHz
3.5 GHz Turbo Frequency (all cores) 4.0 GHz
 
 

Internal Graphics

The Intel Core i7-7820HK has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-7820HK uses the Intel HD Graphics 630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-6700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6700K uses the Intel HD Graphics 530, which has 192 texture shaders
192 Shaders 192
Q2/2016 Release date Q3/2015
14 nm Technology 14 nm
12 Direct X 12
64.0 GB Max. GPU Memory 32.0 GB
-- Max. displays --
24 Execution units 24
0.3 GHz GPU frequency 0.35 GHz
9.5 Generation 9
1.1 GHz GPU (Turbo) 1.15 GHz
Intel HD Graphics 630 GPU name Intel HD Graphics 530
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode VP8 Decode / Encode
Decode VC-1 Decode
Decode / Encode JPEG Decode / Encode
No AV1 No
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP9 Decode
Decode / Encode h265 / HEVC (10 bit) Decode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 38.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR3-1600, DDR4-2400 Memory type DDR4-2133, DDR3-1866
No ECC No
64.0 GB Max. Memory 64.0 GB
2 Memory channels 2
38.4 GB/s Bandwidth 34.1 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 45 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 91 W watts.
45 W TDP (PL1 / PBP) 91 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-7820HK is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-6700K is manufactured using a 14 nm process.
Q1/2017 Release date Q3/2015
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
14 nm Technology 14 nm
Monolithic Chip design Monolithic
-- Release price 420 $
Kaby Lake H Architecture Skylake S
8.0 MB L3-Cache 8.0 MB
Windows 10, Linux Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
BGA 1440 Socket LGA 1151
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
17028
17028
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
15105
15105

Geekbench 3, 64bit (Single-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
4757
4757
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
4146
4146

Geekbench 6 (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
4665
4665
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
3956
3956

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
4459
4459
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
3982
3982

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
2313
2313
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
1948
1948

Cinebench R20 (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
2059
2059
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
1801
1801

Geekbench 6 (Single-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
1347
1347
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
1264
1264

Cinebench R15 (Multi-Core)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
888
888
Intel Core i7-7820HK
4C 8T @ 2.9 GHz
784
784

Blender 2.81 (bmw27)

Intel Core i7-7820HK
4C 8T @ 2.9 GHz
481.3
481.3
Intel Core i7-6700K
4C 8T @ 4.0 GHz
369.3
369.3