GeForce GT 640M Mac Edition vs Radeon R9 M280X
Summary
Reasons to consider GeForce GT 640M Mac Edition |
| Supports PhysX |
| Supports G-Sync |
| Supports ShadowPlay (allows game streaming/recording with minimum performance penalty) |
| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
Reasons to consider Radeon R9 M280X |
| This is a much newer product, it might have better long term support. |
| Higher theoretical gaming performance, based on specifications. |
| Supports Direct3D 12 Async Compute |
| Supports FreeSync |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports TrueAudio |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon R9 M280X
Based on theoretical specifications.
Core Configuration
| GeForce GT 640M Mac Edition | | Radeon R9 M280X | |
|---|
| GPU Name | GK107 (N13P-GS) | vs | Saturn (Saturn XT) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 118 mm² | vs | 160 mm² |
| Transistors | 1,270 million | vs | 2,080 million |
| Shaders | 384 | vs | 896 |
| Compute Units | 2 | vs | 14 |
| Core clock | 745 MHz | vs | 900 MHz |
| ROPs | 8 | vs | 16 |
| TMUs | 32 | vs | 56 |
Memory Configuration
| GeForce GT 640M Mac Edition | | Radeon R9 M280X | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 128 bit |
| Memory Speed | 1250 MHz
5000 MHz effective | vs | 1375 MHz
5500 MHz effective |
| Memory Size | 512 Mb | vs | 4096 Mb |
Additional details
| GeForce GT 640M Mac Edition | | Radeon R9 M280X | |
|---|
| TDP | 32 watts | vs | 0 watts |
| Release Date | 3 Feb 2013 | vs | 5 Feb 2015 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better