Buy on Amazon
$392.83
In Stock
Availability
Availability
Availability
Availability
Key Differences
In short — Core i9-7900X 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 Core i9-7900X is 101 days older than the cheaper Core i5-8400.
Advantages of Intel Core i9-7900X
- Performs up to 1% better in FINAL FANTASY XIV: Endwalker than Core i5-8400 - 249 vs 247 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 20 vs 6 threads
Advantages of Intel Core i5-8400
- Up to 71% cheaper than Core i9-7900X - $114.0 vs $392.83
- Up to 71% better value when playing FINAL FANTASY XIV: Endwalker than Core i9-7900X - $0.46 vs $1.58 per FPS
- Consumes up to 54% less energy than Intel Core i9-7900X - 65 vs 140 Watts
FINAL FANTASY XIV: Endwalker
Resolution
1920 x 1080
Game Graphics
Maximum
Core i9-7900X
Desktop • Jun 26th, 2017
FPS
249
100%
Value, $/FPS
$1.58/FPS
29%
Price, $
$392.83
29%
FPS Winner
Intel Core i9-7900X X-Series Processor 10 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 140W
Buy for $392.83 on Amazon
In Stock
Updated 97 minutes ago
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $114 on Amazon
In Stock
Updated 97 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Maximum
Core i9-7900X
Desktop • Jun 26th, 2017
Core i5-8400
Desktop • Oct 5th, 2017
Geekbench 5 Benchmarks
Intel Core i9-7900X | vs | Intel Core i5-8400 |
|---|---|---|
| Jun 26th, 2017 | Release Date | Oct 5th, 2017 |
| Core i9 | Collection | Core i5 |
| Skylake-E/EP | Codename | Coffee Lake |
| Intel Socket 2066 | Socket | Intel Socket 1151 |
Desktop | Segment | Desktop |
10 | Cores | 6 |
20 | Threads | 6 |
3.3 GHz | Base Clock Speed | 2.8 GHz |
4.3 GHz | Turbo Clock Speed | 4.0 GHz |
| 140 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
33.0x | Multiplier | 28.0x |
| None | Integrated Graphics | None |
Yes | Overclockable | No |
Builds Using Core i9-7900X or Core i5-8400
FINAL FANTASY XIV: Endwalker, 1920 x 1080, Maximum
76 FPS
$11.18/FPS
Radeon RX 580
Core i5-8400
8 GB, 1 TB HDD
Buy on Amazon
$849.99
In Stock
Similar CPU Comparisons
Select from the most popular similar processor comparisons. Most compared processor combinations, including the currently selected ones, are at the top.
