Key Differences
In short — GeForce GTX 980 outperforms GeForce GT 645M on the selected game parameters. We do not have the prices of both GPUs to compare value. The better performing GeForce GTX 980 is 718 days newer than GeForce GT 645M.
Advantages of GeForce GT 645M
- Consumes up to 81% less energy than NVIDIA GeForce GTX 980 - 32 vs 165 Watts
Advantages of GeForce GTX 980
- Performs up to 22% better in Dota 2 than GeForce GT 645M - 166 vs 136 FPS
- Up to 100% more VRAM memory than NVIDIA GeForce GT 645M - 4 vs 2 GB
Dota 2
Resolution
1920 x 1080
Game Graphics
Best Looking
My Games
With selected game settings
Resolution
1920 x 1080
Game Graphics
Best Looking
GeForce GT 645M
Mobile • Oct 1st, 2012
GeForce GTX 980
Desktop • Sep 19th, 2014
Theoretical Performance
GeForce GTX 980
Desktop • Sep 19th, 2014
Pixel Fillrate
77.82 GPixel/s
100%
Texel Fillrate
155.6 GTexel/s
100%
GeForce GT 645M | vs | GeForce GTX 980 |
|---|---|---|
| Oct 1st, 2012 | Release Date | Sep 19th, 2014 |
| GeForce 600M | Generation | GeForce 900 |
| Not Available | MSRP | $549 |
| Portable Device Dependent | Outputs | 1x DVI, 1x HDMI 2.0, 3x DisplayPort 1.2 |
| None | Power Connectors | 2x 6-pin |
Mobile | Segment | Desktop |
| 2 GB | Memory | 4 GB |
| DDR3 | Type | GDDR5 |
| 128-bit | Bus | 256-bit |
| 28.8 GB/s | Bandwidth | 224.4 GB/s |
| 709 MHz | Base Clock Speed | 1127 MHz |
| 780 MHz | Boost Clock Speed | 1216 MHz |
| 900 MHz | Memory Clock Speed | 1753 MHz |
