Intel Core i9 7920X vs Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i9 7920X with 12 cores 2.9GHz and Intel Core i9 9940X with 14 cores 3.3GHz . 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
Lower TDP (140W vs 165W)
Intel Core i9 9940X 's Advantages
Released 1 years and 2 months late
Higher base frequency (3.3GHz vs 2.9GHz)
Larger L3 cache size (20MB vs 17MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i9 7920X
1053
Intel Core i9 9940X
+26%
1328
Geekbench 6 Multi Core
Intel Core i9 7920X
4327
Intel Core i9 9940X
+126%
9787
Geekbench 5 Single Core
Intel Core i9 7920X
1137
Intel Core i9 9940X
+4%
1189
Geekbench 5 Multi Core
Intel Core i9 7920X
11828
Intel Core i9 9940X
+21%
14374
Passmark CPU Single Core
Intel Core i9 7920X
2488
Intel Core i9 9940X
+4%
2608
Passmark CPU Multi Core
Intel Core i9 7920X
23468
Intel Core i9 9940X
+20%
28355
General Parameters
Aug 2017
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-7920X
Processor Number
i9-9940X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
165 W
95 °C
Peak Operating Temperature
88 °C
CPU Performance
12
Performance Cores
14
24
Performance Core Threads
28
2.9 GHz
Performance Core Base Frequency
3.3 GHz
4.3 GHz
Performance Core Turbo Frequency
4.4 GHz
12
Total Core Count
14
24
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
29x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
17 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
85 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
