Buy on Amazon
£128.88
In Stock
Availability
Availability
AvailabilityMSRP in USD: $539
Availability
MSRP in USD: $539
Key Differences
In short — Core i9-11900K outperforms the cheaper Core i5-9400F on the selected game parameters. However, the worse performing Core i5-9400F is a better bang for your buck. The better performing Core i9-11900K is 798 days newer than the cheaper Core i5-9400F.
Advantages of Intel Core i5-9400F
- Up to 50% cheaper than Core i9-11900K - £128.88 vs £258.88
- Up to 44% better value when playing FINAL FANTASY XIV: Endwalker than Core i9-11900K - £0.52 vs £0.93 per FPS
- Consumes up to 48% less energy than Intel Core i9-11900K - 65 vs 125 Watts
Advantages of Intel Core i9-11900K
- Performs up to 12% better in FINAL FANTASY XIV: Endwalker than Core i5-9400F - 279 vs 248 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-9400F - 16 vs 6 threads
- Works without a dedicated GPU, while Intel Core i5-9400F doesn't have integrated graphics
FINAL FANTASY XIV: Endwalker
Resolution
1920 x 1080
Game Graphics
Maximum
Core i5-9400F
Desktop • Jan 8th, 2019
FPS
248
88%
Value, £/FPS
£0.52/FPS
100%
Price, £
£128.88
100%
Value Winner
Intel Core i5-9400F 2.9GHz LGA1151 9M Cache BOX CPU
Buy for £128.88 on Amazon
In Stock
Updated 13058 minutes ago
Core i9-11900K
Desktop • Mar 16th, 2021
FPS
279
100%
Value, £/FPS
£0.93/FPS
55%
Price, £
£258.88
49%
FPS Winner
Intel® Core™ i9-11900K Desktop Processor 8 Cores up to 5.3 GHz Unlocked LGA1200 (Intel® 500 Series & select 400 Series chipset) 125W
Buy for £258.88 on Amazon
In Stock
Updated 13057 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Maximum
Core i5-9400F
Desktop • Jan 8th, 2019
Core i9-11900K
Desktop • Mar 16th, 2021
Geekbench 5 Benchmarks
Intel Core i5-9400F | vs | Intel Core i9-11900K |
|---|---|---|
| Jan 8th, 2019 | 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 |
| 2.9 GHz | Base Clock Speed | 3.5 GHz |
| 4.1 GHz | Turbo Clock Speed | 5.3 GHz |
65 W | TDP | 125 W |
| 14 nm | Process Size | 14 nm |
| 29.0x | Multiplier | 35.0x |
| None | Integrated Graphics | UHD Graphics 750 |
| No | Overclockable | Yes |
Builds Using Core i5-9400F or Core i9-11900K
FINAL FANTASY XIV: Endwalker, 1920 x 1080, Maximum
192 FPS
£7.29/FPS
GeForce RTX 4070
Core i9-11900K
16 GB, 1 TB SSD
Buy on Amazon
£1,399.95
In Stock
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