Intel Core i7-7800X vs Intel Core i7-7820X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-7800X or Intel Core i7-7800X – 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 i7-7800X features 6 processor cores and has the capability to manage 12 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 i7-7800X, 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.
To use the Intel Core i7-7820X, you'll need a motherboard with a LGA 2066 socket.
Desktop / Server Segment Desktop / Server
Intel Core i7-7800X Name Intel Core i7-7820X
Intel Core i7 Family Intel Core i7
7 Generation 7
Intel Core i 7000X Group Intel Core i 7000X
 
 

CPU Cores and Base Frequency

The Intel Core i7-7800X has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-7800X is 3.5 GHz
and turbo frequency for one core is 4.2 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.
4.2 GHz Turbo Frequency (1 core) 4.5 GHz
Yes Overclocking Yes
normal Core architecture normal
3.5 GHz Frequency 3.6 GHz
12 Threads 16
3.9 GHz Turbo Frequency (all cores) 4.3 GHz
Yes Hyperthreading Yes
6 CPU Cores 8
6x Cores 8x
 
 

Internal Graphics

The Intel Core i7-7800X does not have integrated graphics.
The Intel Core i7-7820X does not have integrated graphics.
-- GPU frequency --
-- Release date --
-- Direct X --
GPU name
-- Technology --
-- Max. displays --
-- Shaders --
0 bytes Max. GPU Memory 0 bytes
-- Execution units --
-- Generation --
-- 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.
-- AVC --
-- VC-1 --
-- VP9 --
-- h265 / HEVC (10 bit) --
-- h264 --
-- VP8 --
-- h265 / HEVC (8 bit) --
-- JPEG --
-- AV1 --
 
 

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 76.8 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.
4 Memory channels 4
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
76.8 GB/s Bandwidth 85.4 GB/s
DDR4-2400 Memory type DDR4-2666
 
 

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.
-- Tjunction max --
140 W TDP (PL1 / PBP) 140 W
 
 

Technical details

The Intel Core i7-7800X 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 i7-7820X is manufactured using a 14 nm process.
In total, this processor boasts a generous 11.0 MB cache.
Q2/2017 Release date Q2/2017
-- 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, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
Monolithic Chip design Monolithic
Skylake X Architecture Skylake X
14 nm Technology 14 nm
LGA 2066 Socket LGA 2066
Windows 10, Linux Operating systems Windows 10, Linux
485 $ Release price 650 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
8.0 MB L3-Cache 11.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
35487
35487
Intel Core i7-7800X
6C 12T @ 3.5 GHz
24162
24162

Estimated results for PassMark CPU Mark

Intel Core i7-7820X
8C 16T @ 3.6 GHz
17244
17244
Intel Core i7-7800X
6C 12T @ 3.5 GHz
12866
12866

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
8916
8916
Intel Core i7-7800X
6C 12T @ 3.5 GHz
6759
6759

Geekbench 6 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
8123
8123
Intel Core i7-7800X
6C 12T @ 3.5 GHz
6897
6897

Cinebench R20 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
5155
5155
Intel Core i7-7800X
6C 12T @ 3.5 GHz
2809
2809

Geekbench 3, 64bit (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
5103
5103
Intel Core i7-7800X
6C 12T @ 3.5 GHz
4763
4763

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
4398
4398
Intel Core i7-7800X
6C 12T @ 3.5 GHz
3341
3341

Cinebench R15 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1887
1887
Intel Core i7-7800X
6C 12T @ 3.5 GHz
1285
1285

Geekbench 6 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1513
1513
Intel Core i7-7800X
6C 12T @ 3.5 GHz
1406
1406

Geekbench 5, 64bit (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1285
1285
Intel Core i7-7800X
6C 12T @ 3.5 GHz
1114
1114

Cinebench R20 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
498
498
Intel Core i7-7800X
6C 12T @ 3.5 GHz
358
358

Cinebench R15 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
197
197
Intel Core i7-7800X
6C 12T @ 3.5 GHz
184
184

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

Intel Core i7-7820X
8C 16T @ 3.6 GHz
20.7
20.7
Intel Core i7-7800X
6C 12T @ 3.5 GHz
14.1
14.1