AMD Ryzen 5 8400F vs Intel Core i9 9940X
We compared two desktop CPUs: AMD Ryzen 5 8400F with 6 cores 4.2GHz 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
AMD Ryzen 5 8400F 's Advantages
Released 5 years and 7 months late
Higher specification of memory (5200 vs 2666)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (4.2GHz vs 3.3GHz)
More modern manufacturing process (4nm vs 14nm)
Lower TDP (65W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 83.2GB/s)
Larger L3 cache size (20MB vs 16MB)
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 5 8400F
+37%
1691
Intel Core i9 9940X
1228
Cinebench R23 Multi Core
AMD Ryzen 5 8400F
13361
Intel Core i9 9940X
+14%
15351
Geekbench 6 Single Core
AMD Ryzen 5 8400F
+88%
2500
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
AMD Ryzen 5 8400F
+9%
10760
Intel Core i9 9940X
9787
Passmark CPU Single Core
AMD Ryzen 5 8400F
+36%
3553
Intel Core i9 9940X
2608
Passmark CPU Multi Core
AMD Ryzen 5 8400F
23127
Intel Core i9 9940X
+22%
28355
General Parameters
May 2024
Release Date
Oct 2018
Amd
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Zen 4 (Phoenix)
Core Architecture
Skylake
-
Processor Number
i9-9940X
AM5
Socket
LGA-2066
No
Integrated Graphics
N/A
Ryzen 5 (Zen 4 (Phoenix))
Generation
-
Package
25 billions
Transistor Count
-
4 nm
Manufacturing Process
14 nm
45-65 W
Power Consumption
165 W
95 °C
Peak Operating Temperature
88 °C
TSMC
Foundry
-
178 mm²
Die Size
-
CPU Performance
6
Performance Cores
14
12
Performance Core Threads
28
4.2 GHz
Performance Core Base Frequency
3.3 GHz
4.7 GHz
Performance Core Turbo Frequency
4.4 GHz
6
Total Core Count
14
12
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
42
Multiplier
33x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
Yes
1
SMP
-
Memory Parameters
DDR5-5200
Memory Types
DDR4-2666
256 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
83.2 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
4.0
PCIe Version
3.0
20
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
