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Key Differences
In short — Core i5-8400 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 i5-8400 is 212 days older than Core i3-8121U.
Advantages of Intel Core i3-8121U
- Consumes up to 77% less energy than Intel Core i5-8400 - 15 vs 65 Watts
Advantages of Intel Core i5-8400
- Performs up to 1% better in Stray than Core i3-8121U - 183 vs 182 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i3-8121U - 6 vs 4 threads
Stray
Resolution
1920 x 1080
Game Graphics
High
Core i5-8400
Desktop • Oct 5th, 2017
FPS
183
100%
Value, $/FPS
$0.71/FPS
100%
Price, $
$130.73
100%
FPS and Value Winner
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $130.73 on Amazon
In Stock
Updated 5482 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
High
Core i3-8121U
Mobile • May 5th, 2018
Core i5-8400
Desktop • Oct 5th, 2017
Geekbench 5 Benchmarks
Intel Core i3-8121U | vs | Intel Core i5-8400 |
|---|---|---|
May 5th, 2018 | Release Date | Oct 5th, 2017 |
| 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 | 2.8 GHz |
| 3.2 GHz | Turbo Clock Speed | 4.0 GHz |
15 W | TDP | 65 W |
10 nm | Process Size | 14 nm |
| 22.0x | Multiplier | 28.0x |
| None | Integrated Graphics | None |
| No | Overclockable | No |
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