The Core i5-8400T is a slower gaming CPU than the Core i7-9800X, however, it's a slightly better value for money, as it's $45.13 cheaper!
Advantages of the Core i5-8400T
- Up to 28% cheaper – $113.37 vs $158.50
- A slightly better value for money for gaming
- Consumes up to 79% less energy – 35 vs 165 Watts
- Can run games without a dedicated GPU as it has integrated graphics
Advantages of the Core i7-9800X
- A faster CPU for gaming
- Can execute more multi-threaded tasks simultaneously – 16 vs 6 threads
Core i5-8400T vs Core i7-9800X for Gaming
The CPU's performance in selected game and settings
Core i5-8400T
Apr 2nd, 2018
Average FPS
200
98%
Min 1% FPS
139
98%
Price, $
$113.37
100%
Value, $/FPS
$0.56/FPS
100%
Core i7-9800X
Oct 19th, 2018
Average FPS
205
100%
Min 1% FPS
142
100%
Price, $
$158.5
71%
Value, $/FPS
$0.77/FPS
73%
Core i5-8400T vs Core i7-9800X in My Games
The FPS you'll get in saved games, click on a game to change it
The FPS you'll get in saved games, click on a game to change it
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Synthetic Benchmarks
The Core i5-8400T vs Core i7-9800X in synthetic CPU benchmarks
Performance Specifications
The Core i5-8400T vs Core i7-9800X in core CPU performance specifications
Core i5-8400T
Apr 2nd, 2018
Cores
6-core
75%
L3 Cache
9 MB
55%
Base Frequency
1.7 GHz
45%
Turbo Frequency
3.3 GHz
73%
Max. DDR4 RAM Speed
2666 MHz
100%
Core i7-9800X
Oct 19th, 2018
Cores
8-core
100%
L3 Cache
16.5 MB
100%
Base Frequency
3.8 GHz
100%
Turbo Frequency
4.5 GHz
100%
Max. DDR4 RAM Speed
2666 MHz
100%
Specifications
Comparison of all specifications
Core i5-8400T | SpecificationsComparison of all specifications | Core i7-9800X |
|---|---|---|
| General | ||
| Apr 2nd, 2018 | Release Date | Oct 19th, 2018 |
$182.00 | MSRP | $589.00 |
Desktop | Segment | Desktop |
| Intel Socket 1151 | Socket | Intel Socket 2066 |
| Coffee Lake | Codename | Skylake-X |
35 W | Power Consumption | 165 W |
| Performance | ||
| 6 | Cores | 8 |
| 6 | Threads | 16 |
| 1.7 GHz | Base Frequency | 3.8 GHz |
| 3.3 GHz | Turbo Frequency | 4.5 GHz |
| 9 MB | L3 Cache | 16.5 MB |
| Other Features | ||
| DDR4 @ 2666 MHz | RAM | DDR4 @ 2666 MHz |
UHD Graphics 630 | Integrated Graphics | No |
| No | Overclockable | Yes |
