Intel Core i7-7740X vs Intel Core i7-7820X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-7740X or Intel Core i7-7740X – 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 i7-7740X features 4 processor cores and has the capability to manage 8 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 i7-7740X, 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.
Intel Core i 7000X Group Intel Core i 7000X
7 Generation 7
Desktop / Server Segment Desktop / Server
Intel Core i7-7740X Name Intel Core i7-7820X
Intel Core i7 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-7740X has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-7740X is 4.3 GHz
and turbo frequency for one core is 4.5 GHz.
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
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
8 Threads 16
4x Cores 8x
4 CPU Cores 8
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
4.5 GHz Turbo Frequency (1 core) 4.5 GHz
4.3 GHz Frequency 3.6 GHz
4.3 GHz Turbo Frequency (all cores) 4.3 GHz
 
 

Internal Graphics

The Intel Core i7-7740X 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 64.0 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.
pci PCIe pci
Yes AES-NI Yes
DDR4-2666 Memory type DDR4-2666
No ECC No
64.0 GB Max. Memory 128.0 GB
2 Memory channels 4
42.7 GB/s Bandwidth 85.4 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 112 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 140 W watts.
112 W TDP (PL1 / PBP) 140 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-7740X 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
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
375 $ Release price 650 $
Skylake X Architecture Skylake X
8.0 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 i7-7820X
8C 16T @ 3.6 GHz
35487
35487
Intel Core i7-7740X
4C 8T @ 4.3 GHz
18340
18340

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
8916
8916
Intel Core i7-7740X
4C 8T @ 4.3 GHz
4834
4834

Geekbench 6 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
8123
8123
Intel Core i7-7740X
4C 8T @ 4.3 GHz
5220
5220

Geekbench 3, 64bit (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
5133
5133
Intel Core i7-7820X
8C 16T @ 3.6 GHz
5103
5103

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
4398
4398
Intel Core i7-7740X
4C 8T @ 4.3 GHz
2540
2540

Cinebench R15 (Multi-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1887
1887
Intel Core i7-7740X
4C 8T @ 4.3 GHz
976
976

Geekbench 6 (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1513
1513
Intel Core i7-7740X
4C 8T @ 4.3 GHz
1497
1497

Geekbench 5, 64bit (Single-Core)

Intel Core i7-7820X
8C 16T @ 3.6 GHz
1285
1285
Intel Core i7-7740X
4C 8T @ 4.3 GHz
1277
1277

Cinebench R15 (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
200
200
Intel Core i7-7820X
8C 16T @ 3.6 GHz
197
197