Buy on Amazon
$130.73
In Stock
Availability
Availability
AvailabilityMSRP in USD: $499
Availability
MSRP in USD: $499
Key Differences
In short — Ryzen 9 3900X 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 Ryzen 9 3900X is 640 days newer than the cheaper Core i5-8400.
Advantages of Intel Core i5-8400
- Up to 67% cheaper than Ryzen 9 3900X - $130.73 vs $395.0
- Up to 66% better value when playing The Outer Worlds than Ryzen 9 3900X - $0.64 vs $1.91 per FPS
- Consumes up to 38% less energy than AMD Ryzen 9 3900X - 65 vs 105 Watts
Advantages of AMD Ryzen 9 3900X
- Performs up to 1% better in The Outer Worlds than Core i5-8400 - 207 vs 204 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 24 vs 6 threads
The Outer Worlds
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400
Desktop • Oct 5th, 2017
FPS
204
98%
Value, $/FPS
$0.64/FPS
100%
Price, $
$130.73
100%
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 2356 minutes ago
AMD Ryzen 9 3900X 12-core, 24-thread unlocked desktop processor with Wraith Prism LED Cooler
Buy for $395 on Amazon
In Stock
Updated 2356 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400
Desktop • Oct 5th, 2017
Ryzen 9 3900X
Desktop • Jul 7th, 2019
Geekbench 5 Benchmarks
Intel Core i5-8400 | vs | AMD Ryzen 9 3900X |
|---|---|---|
| Oct 5th, 2017 | Release Date | Jul 7th, 2019 |
| Core i5 | Collection | Ryzen 9 |
| Coffee Lake | Codename | Matisse |
| Intel Socket 1151 | Socket | AMD Socket AM4 |
Desktop | Segment | Desktop |
| 6 | Cores | 12 |
| 6 | Threads | 24 |
| 2.8 GHz | Base Clock Speed | 3.8 GHz |
| 4.0 GHz | Turbo Clock Speed | 4.6 GHz |
65 W | TDP | 105 W |
| 14 nm | Process Size | 7 nm |
| 28.0x | Multiplier | 38.0x |
| None | Integrated Graphics | None |
| No | Overclockable | Yes |
Builds Using Core i5-8400 or Ryzen 9 3900X
The Outer Worlds, 1920 x 1080, Ultra
145 FPS
$9.92/FPS
GeForce RTX 3080
Ryzen 9 3900X
16 GB, N/A Storage
Buy on Amazon
$1,437.79
In Stock
157 FPS
$19.11/FPS
GeForce RTX 3090
Ryzen 9 3900X
24 GB, N/A Storage
Buy on Amazon
$2,999.99
In Stock
145 FPS
$18.55/FPS
GeForce RTX 3080
Ryzen 9 3900X
16 GB, N/A Storage
Buy on Amazon
$2,689.24
In Stock
121 FPS
$14.88/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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