Buy on Amazon
$96
In Stock
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Key Differences
In short — Core i5-9400F outperforms Core i3-8121U on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i5-9400F is 248 days newer than Core i3-8121U.
Advantages of Intel Core i3-8121U
- Consumes up to 77% less energy than Intel Core i5-9400F - 15 vs 65 Watts
Advantages of Intel Core i5-9400F
- Performs up to 1% better in Dead Space than Core i3-8121U - 151 vs 149 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i3-8121U - 6 vs 4 threads
Dead Space
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-9400F
Desktop • Jan 8th, 2019
FPS
151
100%
Value, $/FPS
$0.64/FPS
100%
Price, $
$96
100%
FPS and Value Winner
Intel® Core™ i5-9400F Desktop Processor 6 Cores 4.1 GHz Turbo Without Graphics
Buy for $96 on Amazon
In Stock
Updated 5473 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i3-8121U
Mobile • May 5th, 2018
Core i5-9400F
Desktop • Jan 8th, 2019
Geekbench 5 Benchmarks
Intel Core i3-8121U | vs | Intel Core i5-9400F |
|---|---|---|
| May 5th, 2018 | Release Date | Jan 8th, 2019 |
| Core i3 | Collection | Core i5 |
| Cannon Lake | Codename | Coffee Lake |
| Intel BGA 1440 | Socket | Intel Socket 1151 |
Mobile | Segment | Desktop |
| 2 | Cores | 6 |
| 4 | Threads | 6 |
| 2.2 GHz | Base Clock Speed | 2.9 GHz |
| 3.2 GHz | Turbo Clock Speed | 4.1 GHz |
15 W | TDP | 65 W |
10 nm | Process Size | 14 nm |
| 22.0x | Multiplier | 29.0x |
| None | Integrated Graphics | None |
| No | Overclockable | No |
Builds Using Core i3-8121U or Core i5-9400F
Dead Space, 1920 x 1080, Ultra
43 FPS
$27.21/FPS
GeForce GTX 1660
Core i5-9400F
8 GB, 240 GB SSD + 1 TB HDD
Buy on Amazon
$1,169.99
In Stock
43 FPS
$26.02/FPS
GeForce GTX 1660
Core i5-9400F
8 GB, 120 GB SSD + 1 TB HDD
Buy on Amazon
$1,119
In Stock
37 FPS
$18.89/FPS
GeForce GTX 1650
Core i5-9400F
8 GB, 512 GB SSD
Buy on Amazon
$699
In Stock
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