In Atomfall, the Xeon E5645 is slower than the Ryzen 9 5900. We cannot compare value as at least one CPU is out of stock.
Xeon E5645
No clear advantages
Ryzen 9 5900
- Up to 20% faster in Atomfall – 227 vs 189 FPS
- Up to 20% faster in Atomfall
- Is 10 years and 9 months newer – Jan 12, 2021 vs Mar 16, 2010
- Is 10 years and 9 months newer
- Consumes up to 19% less energy – 65 vs 80 Watts
- Consumes up to 19% less energy
Atomfall FPS Calculator
Xeon E5645 vs Ryzen 9 5900: Comparison of performance and price
All items are out of stock
All items are out of stock
Synthetic Benchmarks
The Xeon E5645 vs Ryzen 9 5900 in synthetic CPU benchmarks
Performance Specifications
The Xeon E5645 vs Ryzen 9 5900 in core CPU performance specifications
Xeon E5645
Mar 16th, 2010
Cores
6-core
50%
L3 Cache
12 MB
19%
Base Frequency
2.4 GHz
80%
Turbo Frequency
2.666 GHz
57%
Max. DDR3 RAM Speed
MHz
Ryzen 9 5900
Jan 12th, 2021
Cores
12-core
100%
L3 Cache
64 MB
100%
Base Frequency
3 GHz
100%
Turbo Frequency
4.7 GHz
100%
Max. DDR4 RAM Speed
3200 MHz
100%
Specifications
Comparison of core specifications
Xeon E5645 Mar 16th, 2010 | SpecificationsComparison of core specifications | Ryzen 9 5900 Jan 12th, 2021 |
|---|---|---|
| General | ||
| Mar 16th, 2010 | Release Date | Jan 12th, 2021 |
| – | MSRP | – |
Server | Segment | Desktop |
| LGA1366 | Socket | AM4 |
| 80W | Power Consumption | 65W |
| Other Features | ||
| DDR3 | RAM | 3200 MHz (DDR4) |
| No Integrated Graphics | Integrated GPU | No Integrated Graphics |
| Not Overclockable | Overclock Support | Overclockable |





































































































































