The Core i7-5820K is a much slower gaming CPU than the Ryzen 9 3900X. We cannot compare value as at least one CPU is out of stock.
Advantages of the Core i7-5820K
The Ryzen 9 3900X is better in every way
Advantages of the Ryzen 9 3900X
- A much faster CPU for gaming
- Consumes up to 25% less energy – 105 vs 140 Watts
- Can execute more multi-threaded tasks simultaneously – 24 vs 12 threads
Core i7-5820K vs Ryzen 9 3900X for Gaming
The CPU's performance in selected game and settings
Core i7-5820K
Sep 1st, 2014
Average FPS
200
95%
Min 1% FPS
140
96%
Price, $
Out of Stock
Value, $/FPS
Not Available
All items are out of stock.
Ryzen 9 3900X
Jul 7th, 2019
Average FPS
211
100%
Min 1% FPS
146
100%
Price, $
$350
100%
Value, $/FPS
$1.65/FPS
100%
Core i7-5820K vs Ryzen 9 3900X 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
Very High
1920x1080
+2
Average FPS
Average FPS
Very High
1920x1080
Average FPS
Average FPS
Ultra
1920x1080
+2
Average FPS
Average FPS
High
1920x1080
+3
Average FPS
Average FPS
High
1920x1080
+1
Average FPS
Average FPS
Add a Game
Select Settings
Synthetic Benchmarks
The Core i7-5820K vs Ryzen 9 3900X in synthetic CPU benchmarks
Performance Specifications
The Core i7-5820K vs Ryzen 9 3900X in core CPU performance specifications
Core i7-5820K
Sep 1st, 2014
Cores
6-core
50%
L3 Cache
15 MB
23%
Base Frequency
3.3 GHz
87%
Turbo Frequency
3.6 GHz
78%
Max. DDR4 RAM Speed
2133 MHz
67%
Ryzen 9 3900X
Jul 7th, 2019
Cores
12-core
100%
L3 Cache
64 MB
100%
Base Frequency
3.8 GHz
100%
Turbo Frequency
4.6 GHz
100%
Max. DDR4 RAM Speed
3200 MHz
100%
Specifications
Comparison of all specifications
Core i7-5820K | SpecificationsComparison of all specifications | Ryzen 9 3900X |
|---|---|---|
| General | ||
| Sep 1st, 2014 | Release Date | Jul 7th, 2019 |
| Not Available | MSRP | $499.00 |
Desktop | Segment | Desktop |
| Intel Socket 2011-3 | Socket | AMD Socket AM4 |
| Haswell-E | Codename | Matisse |
| 140 W | Power Consumption | 105 W |
| Performance | ||
| 6 | Cores | 12 |
| 12 | Threads | 24 |
| 3.3 GHz | Base Frequency | 3.8 GHz |
| 3.6 GHz | Turbo Frequency | 4.6 GHz |
| 15 MB | L3 Cache | 64 MB |
| Other Features | ||
| DDR4 @ 2133 MHz | RAM | DDR4 @ 3200 MHz |
| No | Integrated Graphics | No |
| Yes | Overclockable | Yes |
