Intel Core i9 7920X vs Intel Core i7 6700K
We compared two desktop CPUs: Intel Core i9 7920X with 12 cores 2.9GHz and Intel Core i7 6700K with 4 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 7920X 's Advantages
Released 2 years late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (85GB/s vs 34.1GB/s)
Larger L3 cache size (17MB vs 8MB)
Intel Core i7 6700K 's Advantages
Integrated graphics card
Higher base frequency (4.0GHz vs 2.9GHz)
Lower TDP (91W vs 140W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i9 7920X
1053
Intel Core i7 6700K
+43%
1512
Geekbench 6 Multi Core
Intel Core i9 7920X
4327
Intel Core i7 6700K
+17%
5068
Geekbench 5 Single Core
Intel Core i9 7920X
+4%
1137
Intel Core i7 6700K
1087
Geekbench 5 Multi Core
Intel Core i9 7920X
+176%
11828
Intel Core i7 6700K
4271
Passmark CPU Single Core
Intel Core i9 7920X
2488
Intel Core i7 6700K
2503
Passmark CPU Multi Core
Intel Core i9 7920X
+162%
23468
Intel Core i7 6700K
8928
General Parameters
Aug 2017
Release Date
Aug 2015
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-7920X
Processor Number
i7-6700K
LGA-2066
Socket
LGA-1151
N/A
Integrated Graphics
HD Graphics 530
Package
-
Transistor Count
1.75 billions
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
91 W
95 °C
Peak Operating Temperature
-
CPU Performance
12
Performance Cores
4
24
Performance Core Threads
8
2.9 GHz
Performance Core Base Frequency
4.0 GHz
4.3 GHz
Performance Core Turbo Frequency
4.2 GHz
12
Total Core Count
4
24
Total Thread Count
8
100 MHz
Bus Frequency
100 MHz
29x
Multiplier
40
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
256 K per core
17 MB shared
L3 Cache
8 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2133,DDR3L-1600
128 GB
Max Memory Size
64 GB
4
Max Memory Channels
2
85 GB/s
Max Memory Bandwidth
34.1 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Max Dynamic Frequency
1150 MHz
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
