Intel Core i5 10400F vs Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i5 10400F with 6 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 i5 10400F 's Advantages
Released 1 years and 7 months late
Lower TDP (65W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Higher base frequency (3.3GHz vs 2.9GHz)
Larger L3 cache size (20MB vs 12MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i5 10400F
1101
Intel Core i9 9940X
+11%
1228
Cinebench R23 Multi Core
Intel Core i5 10400F
7576
Intel Core i9 9940X
+102%
15351
Geekbench 6 Single Core
Intel Core i5 10400F
+9%
1459
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
Intel Core i5 10400F
6209
Intel Core i9 9940X
+57%
9787
Geekbench 5 Single Core
Intel Core i5 10400F
1101
Intel Core i9 9940X
+7%
1189
Geekbench 5 Multi Core
Intel Core i5 10400F
6041
Intel Core i9 9940X
+137%
14374
Passmark CPU Single Core
Intel Core i5 10400F
2551
Intel Core i9 9940X
+2%
2608
Passmark CPU Multi Core
Intel Core i5 10400F
12350
Intel Core i9 9940X
+129%
28355
General Parameters
May 2020
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Comet Lake
Core Architecture
Skylake
i5-10400F
Processor Number
i9-9940X
LGA-1200
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
165 W
100 °C
Peak Operating Temperature
88 °C
CPU Performance
6
Performance Cores
14
12
Performance Core Threads
28
2.9 GHz
Performance Core Base Frequency
3.3 GHz
4.3 GHz
Performance Core Turbo Frequency
4.4 GHz
6
Total Core Count
14
12
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
29x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
12 MB shared
L3 Cache
20 MB shared
No
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
41.6 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
