Buy on Amazon
$80
In Stock
Prices and Stock
Prices and Stock
Prices and StockMSRP $513
Prices and Stock
MSRP $513
Key Differences
In short — Core i9-11900KF outperforms the cheaper Core i5-8400 on the selected game parameters. However, the worse performing Core i5-8400 is a better bang for your buck. The better performing Core i9-11900KF is 1258 days newer than the cheaper Core i5-8400.
Advantages of Core i5-8400
- Up to 75% cheaper than Core i9-11900KF - $80.00 vs $315.00
- Up to 72% better value when playing Elden Ring than Core i9-11900KF - $0.66 vs $2.39 per FPS
- Consumes up to 48% less energy than Intel Core i9-11900KF - 65 vs 125 Watts
Advantages of Core i9-11900KF
- Performs up to 9% better in Elden Ring than Core i5-8400 - 132 vs 121 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 16 vs 6 threads
Elden Ring
Resolution
1920 x 1080
Game Graphics
Maximum
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $80 on Amazon
In Stock
Updated 336 minutes ago
Intel® Core™ i9-11900KF Desktop Processor 8 Cores up to 5.3 GHz Unlocked LGA1200 (Intel® 500 Series & Select 400 Series Chipset) 125W
Buy for $315 on Amazon
In Stock
Updated 336 minutes ago
My Games
With selected game settings
Resolution
1920 x 1080
Game Graphics
Maximum
Core i5-8400
Desktop • Oct 5th, 2017
Core i9-11900KF
Desktop • Mar 16th, 2021
Geekbench 5 Benchmarks
Core i5-8400 | vs | Core i9-11900KF |
|---|---|---|
| Oct 5th, 2017 | Release Date | Mar 16th, 2021 |
| Core i5 | Collection | Core i9 |
| Coffee Lake | Codename | Rocket Lake |
| Intel Socket 1151 | Socket | Intel Socket 1200 |
Desktop | Segment | Desktop |
| 6 | Cores | 8 |
| 6 | Threads | 16 |
| 2.8 GHz | Base Clock Speed | 3.5 GHz |
| 4.0 GHz | Turbo Clock Speed | 5.3 GHz |
65 W | TDP | 125 W |
| 14 nm | Process Size | 14 nm |
| 28.0x | Multiplier | 35.0x |
| None | Integrated Graphics | None |
| No | Overclockable | Yes |
PCs Using Core i5-8400 or Core i9-11900KF
With selected game settings
86 FPS
$12.44/FPS
Radeon RX 6700 XT
Core i9-11900KF
16 GB, N/A Storage
Buy on Amazon
$1,069.99
In Stock
89 FPS
$11.46/FPS
GeForce RTX 3070
Core i9-11900KF
8 GB, N/A Storage
Buy on Amazon
$1,019.99
In Stock
73 FPS
$11.59/FPS
Radeon RX 6600 XT
Core i9-11900KF
8 GB, N/A Storage
Buy on Amazon
$845.99
In Stock
89 FPS
$10.11/FPS
GeForce RTX 3070
Core i9-11900KF
32 GB, N/A Storage
Buy on Amazon
$899.99
In Stock
89 FPS
$11.57/FPS
GeForce RTX 3070
Core i9-11900KF
32 GB, N/A Storage
Buy on Amazon
$1,029.99
In Stock
109 FPS
$24.77/FPS
GeForce RTX 3090
Core i9-11900KF
32 GB, 1 TB SSD + 2 TB HDD
Buy on Amazon
$2,699.99
In Stock
89 FPS
$16.84/FPS
GeForce RTX 3070
Core i9-11900KF
16 GB, 1 TB SSD
Buy on Amazon
$1,499
In Stock
111 FPS
$31.53/FPS
Radeon RX 6900 XT
Core i9-11900KF
32 GB, N/A Storage
Buy on Amazon
$3,499.99
In Stock
94 FPS
$21.28/FPS
GeForce RTX 3070 Ti
Core i9-11900KF
16 GB, 1 TB SSD
Buy on Amazon
$1,999.99
In Stock
37 FPS
$22.97/FPS
Radeon RX 580
Core i5-8400
8 GB, 1 TB HDD
Buy on Amazon
$849.99
In Stock
Core i5-8400 and Core i9-11900KF Popular Comparisons
Compare 2 Processors in Games
Core i5-8400
$80
vs
Ryzen 7 5700X
$148.33
Core i5-8400
$80
vs
Ryzen 5 7600X
$199.99
Core i5-8400
$80
vs
Ryzen 5 5500
$83.35
Core i5-8400
$80
vs
Ryzen 5 5600X
$118
Core i5-8400
$80
vs
Ryzen 5 7600
$185
Core i5-8400
$80
vs
Ryzen 7 7700X
$278.95
Core i5-8400
$80
vs
Ryzen 7 5800X
$179
Core i9-11900KF
$315
vs
Ryzen 7 5700X
$148.33
Core i9-11900KF
$315
vs
Ryzen 5 7600X
$199.99
Core i9-11900KF
$315
vs
Ryzen 5 5500
$83.35
Core i9-11900KF
$315
vs
Ryzen 5 5600X
$118
Core i5-8400
$80
vs
Core i7-14700K
$332.61
Core i5-8400
$80
vs
Core i7-12700K
$207.14
Core i5-8400
$80
vs
Ryzen 5 5600
$115.73
Core i9-11900KF
$315
vs
Ryzen 5 7600
$185
Core i9-11900KF
$315
vs
Ryzen 7 7700X
$278.95
Core i5-8400
$80
vs
Ryzen 9 7900X
$378.72
Core i9-11900KF
$315
vs
Ryzen 7 5800X
$179
Core i5-8400
$80
vs
Ryzen 9 7950X
$498.74
Core i5-8400
$80
vs
Ryzen 9 5950X
$343.99
Core i5-8400
$80
vs
Ryzen 7 5700
$127
Core i5-8400
$80
vs
Ryzen 9 5900X
$292.21
Core i9-11900KF
$315
vs
Core i7-14700K
$332.61
Core i5-8400
$80
vs
Core i9-12900K
$283.49
Core i9-11900KF
$315
vs
Core i7-12700K
$207.14
Core i9-11900KF
$315
vs
Ryzen 5 5600
$115.73
Core i5-8400
$80
vs
Ryzen 7 5700G
$172
Core i5-8400
$80
vs
Ryzen 7 5700X3D
$331.99
Core i9-11900KF
$315
vs
Ryzen 9 7900X
$378.72
Core i5-8400
$80
vs
Core i5-12600K
$172.99
Core i5-8400
$80
vs
Ryzen 5 5600GT
$129.99
Core i9-11900KF
$315
vs
Ryzen 9 7950X
$498.74
Core i5-8400
$80
vs
Core i7-14700KF
$319.99
Core i9-11900KF
$315
vs
Ryzen 9 5950X
$343.99
Core i5-8400
$80
vs
Core i5-12600KF
$144.59
Core i9-11900KF
$315
vs
Ryzen 7 5700
$127
Core i9-11900KF
$315
vs
Ryzen 9 5900X
$292.21
Core i5-8400
$80
vs
Ryzen 7 3700X
$129
Core i9-11900KF
$315
vs
Core i9-12900K
$283.49
Core i5-8400
$80
vs
Core i7-13700K
$309
Core i9-11900KF
$315
vs
Ryzen 7 5700G
$172
Core i5-8400
$80
vs
Core i9-12900KF
$269.99
Core i9-11900KF
$315
vs
Ryzen 7 5700X3D
$331.99
Core i5-8400
$80
vs
Ryzen 9 7950X3D
$744.99
Core i5-8400
$80
vs
Core i9-14900KF
$417.98
Core i5-8400
$80
vs
Core i5-13600KF
$200.75
Core i9-11900KF
$315
vs
Core i5-12600K
$172.99
Core i9-11900KF
$315
vs
Ryzen 5 5600GT
$129.99
Core i9-11900KF
$315
vs
Core i7-14700KF
$319.99
Core i5-8400
$80
vs
Ryzen 5 3600
$93.99
Core i9-11900KF
$315
vs
Core i5-12600KF
$144.59
Core i5-8400
$80
vs
Core i5-12400
$133.45
Core i9-11900KF
$315
vs
Ryzen 7 3700X
$129
Core i5-8400
$80
vs
Core i7-14700F
$269.99
Core i5-8400
$80
vs
Core i3-12100F
$76.8
Core i9-11900KF
$315
vs
Core i7-13700K
$309
Core i9-11900KF
$315
vs
Core i9-12900KF
$269.99
Core i9-11900KF
$315
vs
Ryzen 9 7950X3D
$744.99
Core i9-11900KF
$315
vs
Core i9-14900KF
$417.98
Core i9-11900KF
$315
vs
Core i5-13600KF
$200.75