Intel Core i7-8700K vs Intel Core i9-7920X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-8700K or Intel Core i7-8700K – 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 i7-8700K features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q4/2017 and belongs to the 8 generation of the Intel Core i7 series.
To use the Intel Core i7-8700K, you'll need a motherboard with a LGA 1151-2 socket.
The Intel Core i9-7920X features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q3/2017 and belongs to the 7 generation of the Intel Core i9 series.
To use the Intel Core i9-7920X, you'll need a motherboard with a LGA 2066 socket.
Desktop / Server Segment Desktop / Server
Intel Core i7-8700K Name Intel Core i9-7920X
Intel Core i7 Family Intel Core i9
8 Generation 7
Intel Core i 8000 Group Intel Core i 7000X
 
 

CPU Cores and Base Frequency

The Intel Core i7-8700K has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-8700K is 3.7 GHz
and turbo frequency for one core is 4.7 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i9-7920X has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the Intel Core i9-7920X is 2.9 GHz
and turbo frequency for one core is 4.3 GHz.
4.7 GHz Turbo Frequency (1 core) 4.3 GHz
Yes Overclocking Yes
normal Core architecture normal
3.7 GHz Frequency 2.9 GHz
12 Threads 24
4.3 GHz Turbo Frequency (all cores) None
Yes Hyperthreading Yes
6 CPU Cores 12
6x Cores 12x
 
 

Internal Graphics

The Intel Core i7-8700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-8700K uses the Intel UHD 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 i9-7920X does not have integrated graphics.
0.35 GHz GPU frequency --
Q4/2017 Release date --
12 Direct X --
Intel UHD Graphics 630 GPU name
14 nm Technology --
-- Max. displays --
192 Shaders --
64.0 GB Max. GPU Memory 0 bytes
24 Execution units --
9.5 Generation --
1.2 GHz GPU (Turbo) --
 
 

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 AVC --
Decode VC-1 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
Decode / Encode h264 --
Decode / Encode VP8 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode JPEG --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 42.7 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 128.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 85.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 4
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
42.7 GB/s Bandwidth 85.4 GB/s
DDR4-2666 Memory type DDR4-2666
 
 

Thermal Management

The processor has a thermal design power (TDP) of 95 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 165 W watts.
-- Tjunction max --
95 W TDP (PL1 / PBP) 165 W
 
 

Technical details

The Intel Core i7-8700K 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 12.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-7920X is manufactured using a 14 nm process.
In total, this processor boasts a generous 16.0 MB cache.
Q4/2017 Release date Q3/2017
-- Part Number --
0 bytes L2-Cache 0 bytes
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, AVX-512
Monolithic Chip design Monolithic
Coffee Lake S Architecture Skylake X
14 nm Technology 14 nm
LGA 1151-2 Socket LGA 2066
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
370 $ Release price 1189 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
12.0 MB L3-Cache 16.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
45772
45772
Intel Core i7-8700K
6C 12T @ 3.7 GHz
27445
27445

Estimated results for PassMark CPU Mark

Intel Core i9-7920X
12C 24T @ 2.9 GHz
23625
23625
Intel Core i7-8700K
6C 12T @ 3.7 GHz
13770
13770

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
11498
11498
Intel Core i7-8700K
6C 12T @ 3.7 GHz
6693
6693

Geekbench 6 (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
9881
9881
Intel Core i7-8700K
6C 12T @ 3.7 GHz
6750
6750

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
6200
6200
Intel Core i7-8700K
6C 12T @ 3.7 GHz
3709
3709

Geekbench 3, 64bit (Single-Core)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
5330
5330
Intel Core i9-7920X
12C 24T @ 2.9 GHz
4876
4876

Cinebench R15 (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
2438
2438
Intel Core i7-8700K
6C 12T @ 3.7 GHz
1447
1447

Geekbench 6 (Single-Core)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
1486
1486
Intel Core i9-7920X
12C 24T @ 2.9 GHz
1410
1410

Geekbench 5, 64bit (Single-Core)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
1242
1242
Intel Core i9-7920X
12C 24T @ 2.9 GHz
1133
1133

Blender 2.81 (bmw27)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
232.4
232.4
Intel Core i9-7920X
12C 24T @ 2.9 GHz
120.9
120.9

Cinebench R15 (Single-Core)

Intel Core i7-8700K
6C 12T @ 3.7 GHz
208
208
Intel Core i9-7920X
12C 24T @ 2.9 GHz
188
188

Cinebench R11.5, 64bit (Multi-Core)

Intel Core i9-7920X
12C 24T @ 2.9 GHz
26.7
26.7
Intel Core i7-8700K
6C 12T @ 3.7 GHz
16.0
16.0