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$395
In Stock
Availability
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AvailabilityMSRP in USD: $499
Availability
MSRP in USD: $499
Key Differences
In short — Ryzen 9 3900X outperforms Core i5-8400H on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Ryzen 9 3900X is 461 days newer than Core i5-8400H.
Advantages of Intel Core i5-8400H
- Consumes up to 57% less energy than AMD Ryzen 9 3900X - 45 vs 105 Watts
- Works without a dedicated GPU, while AMD Ryzen 9 3900X doesn't have integrated graphics
Advantages of AMD Ryzen 9 3900X
- Performs up to 4% better in DOOM Eternal than Core i5-8400H - 500 vs 483 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400H - 24 vs 8 threads
DOOM Eternal
Resolution
1920 x 1080
Game Graphics
Nightmare
Ryzen 9 3900X
Desktop • Jul 7th, 2019
FPS
500
100%
Value, $/FPS
$0.79/FPS
100%
Price, $
$395
100%
FPS and Value Winner
AMD Ryzen 9 3900X 12-core, 24-thread unlocked desktop processor with Wraith Prism LED Cooler
Buy for $395 on Amazon
In Stock
Updated 9134 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Nightmare
Core i5-8400H
Mobile • Apr 2nd, 2018
Ryzen 9 3900X
Desktop • Jul 7th, 2019
Geekbench 5 Benchmarks
Intel Core i5-8400H | vs | AMD Ryzen 9 3900X |
|---|---|---|
| Apr 2nd, 2018 | Release Date | Jul 7th, 2019 |
| Core i5 | Collection | Ryzen 9 |
| Coffee Lake | Codename | Matisse |
| Intel BGA 1440 | Socket | AMD Socket AM4 |
Mobile | Segment | Desktop |
| 4 | Cores | 12 |
| 8 | Threads | 24 |
| 2.5 GHz | Base Clock Speed | 3.8 GHz |
| 4.2 GHz | Turbo Clock Speed | 4.6 GHz |
45 W | TDP | 105 W |
| 14 nm | Process Size | 7 nm |
| 25.0x | Multiplier | 38.0x |
UHD 630 | Integrated Graphics | None |
| No | Overclockable | Yes |
Builds Using Core i5-8400H or Ryzen 9 3900X
DOOM Eternal, 1920 x 1080, Nightmare
281 FPS
$5.12/FPS
GeForce RTX 3080
Ryzen 9 3900X
16 GB, N/A Storage
Buy on Amazon
$1,437.79
In Stock
307 FPS
$9.77/FPS
GeForce RTX 3090
Ryzen 9 3900X
24 GB, N/A Storage
Buy on Amazon
$2,999.99
In Stock
281 FPS
$9.57/FPS
GeForce RTX 3080
Ryzen 9 3900X
16 GB, N/A Storage
Buy on Amazon
$2,689.24
In Stock
233 FPS
$7.73/FPS
GeForce RTX 3070
Ryzen 9 3900X
16 GB, 500 GB SSD + 1 TB HDD
Buy on Amazon
$1,799.99
In Stock
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