Key Differences
In short — Radeon R9 390X outperforms GeForce GT 640M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon R9 390X is 1183 days newer than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 88% less energy than AMD Radeon R9 390X - 32 vs 275 Watts
Advantages of AMD Radeon R9 390X
- Performs up to 94% better in Alan Wake 2 than GeForce GT 640M - 35 vs 18 FPS
- Up to 300% more VRAM memory than NVIDIA GeForce GT 640M - 8 vs 2 GB
Alan Wake 2
Resolution
1920 x 1080
Game Graphics
High
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
High
GeForce GT 640M
Mobile • Mar 22nd, 2012
Radeon R9 390X
Desktop • Jun 18th, 2015
Theoretical Performance
Radeon R9 390X
Desktop • Jun 18th, 2015
Pixel Fillrate
67.2 GPixel/s
100%
Texel Fillrate
184.8 GTexel/s
100%
NVIDIA GeForce GT 640M | vs | AMD Radeon R9 390X |
|---|---|---|
| Mar 22nd, 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 |
| 625 MHz | Base Clock Speed | 1050 MHz |
| Not Available | Boost Clock Speed | Not Available |
| 900 MHz | Memory Clock Speed | 1500 MHz |
