Intel Core i7-7700K vs Intel Core i7-7740X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-7700K or Intel Core i7-7700K – 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 i7-7700K 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 i7-7700K, you'll need a motherboard with a LGA 1151 socket.
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.
Intel Core i 7000 Group Intel Core i 7000X
7 Generation 7
Desktop / Server Segment Desktop / Server
Intel Core i7-7700K Name Intel Core i7-7740X
Intel Core i7 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-7700K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-7700K is 4.2 GHz
and turbo frequency for one core is 4.5 GHz.
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
8 Threads 8
4x Cores 4x
4 CPU Cores 4
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
4.5 GHz Turbo Frequency (1 core) 4.5 GHz
4.2 GHz Frequency 4.3 GHz
4.4 GHz Turbo Frequency (all cores) 4.3 GHz
 
 

Internal Graphics

The Intel Core i7-7700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-7700K 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 i7-7740X does not have integrated graphics.
192 Shaders --
Q2/2016 Release date --
14 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
-- Max. displays --
24 Execution units --
0.35 GHz GPU frequency --
9.5 Generation --
1.15 GHz GPU (Turbo) --
Intel HD Graphics 630 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.
Decode / Encode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
No AV1 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode AVC --
Decode / Encode h264 --
Decode / Encode VP9 --
Decode / Encode 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 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 42.7 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 DDR4-2666
No ECC No
64.0 GB Max. Memory 64.0 GB
2 Memory channels 2
38.4 GB/s Bandwidth 42.7 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 91 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 112 W watts.
91 W TDP (PL1 / PBP) 112 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-7700K 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 i7-7740X is manufactured using a 14 nm process.
Q1/2017 Release date Q2/2017
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
14 nm Technology 14 nm
Monolithic Chip design Monolithic
350 $ Release price 375 $
Kaby Lake S Architecture Skylake X
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 --
LGA 1151 Socket LGA 2066
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-7700K
4C 8T @ 4.2 GHz
18702
18702
Intel Core i7-7740X
4C 8T @ 4.3 GHz
18340
18340

Geekbench 6 (Multi-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
5220
5220
Intel Core i7-7700K
4C 8T @ 4.2 GHz
5149
5149

Geekbench 3, 64bit (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
5133
5133
Intel Core i7-7700K
4C 8T @ 4.2 GHz
5130
5130

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
4834
4834
Intel Core i7-7700K
4C 8T @ 4.2 GHz
4719
4719

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
2540
2540
Intel Core i7-7700K
4C 8T @ 4.2 GHz
2523
2523

Geekbench 6 (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
1497
1497
Intel Core i7-7700K
4C 8T @ 4.2 GHz
1463
1463

Geekbench 5, 64bit (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
1277
1277
Intel Core i7-7700K
4C 8T @ 4.2 GHz
1229
1229

Cinebench R15 (Multi-Core)

Intel Core i7-7700K
4C 8T @ 4.2 GHz
995
995
Intel Core i7-7740X
4C 8T @ 4.3 GHz
976
976

Cinebench R15 (Single-Core)

Intel Core i7-7740X
4C 8T @ 4.3 GHz
200
200
Intel Core i7-7700K
4C 8T @ 4.2 GHz
200
200