Intel Core i9-7900X vs Intel Core i7-7820X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-7900X or Intel Core i9-7900X – 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 i9-7900X features 10 processor cores and has the capability to manage 20 threads concurrently.
It was released in Q2/2017 and belongs to the 7 generation of the Intel Core i9 series.
To use the Intel Core i9-7900X, you'll need a motherboard with a LGA 2066 socket.
The Intel Core i7-7820X features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q2/2017 and belongs to the 7 generation of the Intel Core i7 series.
To use the Intel Core i7-7820X, you'll need a motherboard with a LGA 2066 socket.
Intel Core i 7000X Group Intel Core i 7000X
7 Generation 7
Desktop / Server Segment Desktop / Server
Intel Core i9-7900X Name Intel Core i7-7820X
Intel Core i9 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i9-7900X has 10 CPU cores and can calculate 20 threads in parallel.
The clock frequency of the Intel Core i9-7900X is 3.3 GHz
and turbo frequency for one core is 4.3 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-7820X has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i7-7820X is 3.6 GHz
and turbo frequency for one core is 4.5 GHz.
20 Threads 16
10x Cores 8x
10 CPU Cores 8
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
4.3 GHz Turbo Frequency (1 core) 4.5 GHz
3.3 GHz Frequency 3.6 GHz
None None 4.3 GHz
 
 

Internal Graphics

The Intel Core i9-7900X does not have integrated graphics.
The Intel Core i7-7820X does not have integrated graphics.
-- Shaders --
-- Release date --
-- Technology --
-- Direct X --
0 bytes Max. GPU Memory 0 bytes
-- Max. displays --
-- Execution units --
-- GPU frequency --
-- Generation --
-- GPU (Turbo) --
GPU name
 
 

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.
-- VP8 --
-- VC-1 --
-- JPEG --
-- AV1 --
-- h265 / HEVC (8 bit) --
-- AVC --
-- h264 --
-- VP9 --
-- h265 / HEVC (10 bit) --
 
 

Memory & PCIe

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.
pci PCIe pci
Yes AES-NI Yes
DDR4-2666 Memory type DDR4-2666
No ECC No
128.0 GB Max. Memory 128.0 GB
4 Memory channels 4
85.4 GB/s Bandwidth 85.4 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 140 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.
140 W TDP (PL1 / PBP) 140 W
-- Tjunction max --
 
 

Technical details

The Intel Core i9-7900X 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 14.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-7820X is manufactured using a 14 nm process.
In total, this processor boasts a generous 11.0 MB cache.
Q2/2017 Release date Q2/2017
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
14 nm Technology 14 nm
Monolithic Chip design Monolithic
989 $ Release price 650 $
Skylake X Architecture Skylake X
14.0 MB L3-Cache 11.0 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 --
LGA 2066 Socket LGA 2066
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
41255
41255
Intel Core i7-7820X
8C 16T @ 3.6 GHz
35487
35487

Estimated results for PassMark CPU Mark

Intel Core i9-7900X
10C 20T @ 3.3 GHz
21190
21190
Intel Core i7-7820X
8C 16T @ 3.6 GHz
17244
17244

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
10199
10199
Intel Core i7-7820X
8C 16T @ 3.6 GHz
8916
8916

Geekbench 6 (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
9120
9120
Intel Core i7-7820X
8C 16T @ 3.6 GHz
8123
8123

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
5530
5530
Intel Core i7-7820X
8C 16T @ 3.6 GHz
4398
4398

Cinebench R20 (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
5286
5286
Intel Core i7-7820X
8C 16T @ 3.6 GHz
5155
5155

Geekbench 3, 64bit (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
5103
5103
Intel Core i9-7900X
10C 20T @ 3.3 GHz
4876
4876

Cinebench R15 (Multi-Core)

Intel Core i9-7900X
10C 20T @ 3.3 GHz
2194
2194
Intel Core i7-7820X
8C 16T @ 3.6 GHz
1887
1887

Geekbench 6 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1513
1513
Intel Core i9-7900X
10C 20T @ 3.3 GHz
1410
1410

Geekbench 5, 64bit (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1285
1285
Intel Core i9-7900X
10C 20T @ 3.3 GHz
1133
1133

Cinebench R20 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
498
498
Intel Core i9-7900X
10C 20T @ 3.3 GHz
461
461

Blender 2.81 (bmw27)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
212
212
Intel Core i9-7900X
10C 20T @ 3.3 GHz
137.7
137.7

Cinebench R15 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
197
197
Intel Core i9-7900X
10C 20T @ 3.3 GHz
188
188

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

Intel Core i9-7900X
10C 20T @ 3.3 GHz
24.1
24.1
Intel Core i7-7820X
8C 16T @ 3.6 GHz
20.7
20.7