Key Differences
In short — Radeon R9 390X outperforms GeForce GT 645M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon R9 390X is 990 days newer than GeForce GT 645M.
Advantages of NVIDIA GeForce GT 645M
- Consumes up to 88% less energy than AMD Radeon R9 390X - 32 vs 275 Watts
Advantages of AMD Radeon R9 390X
- Performs up to 180% better in Red Dead Redemption 2 than GeForce GT 645M - 28 vs 10 FPS
- Up to 300% more VRAM memory than NVIDIA GeForce GT 645M - 8 vs 2 GB
Red Dead Redemption 2
Resolution
1920 x 1080
Game Graphics
Highest
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Highest
Mobile • Oct 1st, 2012
Desktop • Jun 18th, 2015
Theoretical Performance
Desktop • Jun 18th, 2015
Pixel Fillrate
67.2 GPixel/s
100%
Texel Fillrate
184.8 GTexel/s
100%
NVIDIA GeForce GT 645M | vs | AMD Radeon R9 390X |
---|---|---|
Oct 1st, 2012 | Release Date | Jun 18th, 2015 |
GeForce 600M | Generation | Pirate Islands |
Not Available | MSRP | $429 |
None | Outputs | 2x DVI, 1x HDMI, 1x DisplayPort |
None | Power Connectors | 1x 6-pin + 1x 8-pin |
Mobile | Segment | Desktop |
2 GB | Memory | 8 GB |
DDR3 | Type | GDDR5 |
128-bit | Bus | 512-bit |
28.8 GB/s | Bandwidth | 384 GB/s |
709 MHz | Base Clock Speed | 1050 MHz |
Not Available | Boost Clock Speed | Not Available |
900 MHz | Memory Clock Speed | 1500 MHz |