Intel Core i7 6900K vs Intel Core i9 7920X
We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz and Intel Core i9 7920X with 12 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 6900K 's Advantages
Higher base frequency (3.2GHz vs 2.9GHz)
Larger L3 cache size (20MB vs 17MB)
Intel Core i9 7920X 's Advantages
Released 1 years and 3 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (85GB/s vs 76.8GB/s)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i7 6900K
+22%
1286
Intel Core i9 7920X
1053
Geekbench 6 Multi Core
Intel Core i7 6900K
+72%
7470
Intel Core i9 7920X
4327
Geekbench 5 Single Core
Intel Core i7 6900K
961
Intel Core i9 7920X
+18%
1137
Geekbench 5 Multi Core
Intel Core i7 6900K
7327
Intel Core i9 7920X
+61%
11828
Passmark CPU Single Core
Intel Core i7 6900K
2310
Intel Core i9 7920X
+7%
2488
Passmark CPU Multi Core
Intel Core i7 6900K
14258
Intel Core i9 7920X
+64%
23468
General Parameters
May 2016
Release Date
Aug 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Broadwell E
Core Architecture
Skylake
i7-6900K
Processor Number
i9-7920X
LGA-2011-3
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
140 W
-
Peak Operating Temperature
95 °C
CPU Performance
8
Performance Cores
12
16
Performance Core Threads
24
3.2 GHz
Performance Core Base Frequency
2.9 GHz
3.7 GHz
Performance Core Turbo Frequency
4.3 GHz
8
Total Core Count
12
16
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
29x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
20 MB shared
L3 Cache
17 MB shared
No
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2133
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
76.8 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
40
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
