Key Differences
In short — Ryzen 9 3900XT outperforms Pentium G645 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Ryzen 9 3900XT is 2865 days newer than Pentium G645.
Advantages of Intel Pentium G645
- Consumes up to 38% less energy than AMD Ryzen 9 3900XT - 65 vs 105 Watts
- Works without a dedicated GPU, while AMD Ryzen 9 3900XT doesn't have integrated graphics
Advantages of AMD Ryzen 9 3900XT
- Performs up to 11% better in DOOM Eternal than Pentium G645 - 502 vs 451 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Pentium G645 - 24 vs 2 threads
DOOM Eternal
Resolution
1920 x 1080
Game Graphics
Nightmare
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Nightmare
Pentium G645
Desktop • Sep 2nd, 2012
Ryzen 9 3900XT
Desktop • Jul 7th, 2020
Geekbench 5 Benchmarks
Intel Pentium G645 | vs | AMD Ryzen 9 3900XT |
|---|---|---|
| Sep 2nd, 2012 | Release Date | Jul 7th, 2020 |
| Pentium | Collection | Ryzen 9 |
| Sandy Bridge | Codename | Matisse |
| Intel Socket 1155 | Socket | AMD Socket AM4 |
Desktop | Segment | Desktop |
| 2 | Cores | 12 |
| 2 | Threads | 24 |
| 2.9 GHz | Base Clock Speed | 3.8 GHz |
| Non-Turbo | Turbo Clock Speed | 4.7 GHz |
65 W | TDP | 105 W |
| 32 nm | Process Size | 7 nm |
| 29.0x | Multiplier | 39.0x |
Intel HD (Sandy Bridge) | Integrated Graphics | None |
| No | Overclockable | Yes |
