GeForce GT 640 GDDR5 vs Radeon R7 250X
Summary
GeForce GT 640 GDDR5
100%
Radeon R7 250X
176%
Relative performance
Reasons to consider GeForce GT 640 GDDR5 |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |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 R7 250X |
| Around 76% higher average synthetic performance. |
| Supports Direct3D 12 Async Compute |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports Mantle |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon R7 250X
The Radeon R7 250X is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| GeForce GT 640 GDDR5 | | Radeon R7 250X | |
|---|
| GPU Name | GK208 (GK208-400-A1) | vs | Cape Verde (Cape Verde XT) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 87 mm² | vs | 123 mm² |
| Transistors | unknown | vs | 1,500 million |
| Shaders | 384 | vs | 640 |
| Compute Units | 2 | vs | 10 |
| Core clock | 1046 MHz | vs | 950 MHz |
| ROPs | 8 | vs | 16 |
| TMUs | 16 | vs | 40 |
Memory Configuration
| GeForce GT 640 GDDR5 | | Radeon R7 250X | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 128 bit |
| Memory Speed | 1252 MHz
5008 MHz effective | vs | 1125 MHz
4500 MHz effective |
| Memory Size | 1024 Mb | vs | 1024 Mb |
Additional details
| GeForce GT 640 GDDR5 | | Radeon R7 250X | |
|---|
| TDP | 49 watts | vs | 80 watts |
| Release Date | 29 May 2013 | vs | 13 Feb 2014 |
GeForce GT 640 GDDR5
8.37 GP/s
Radeon R7 250X
15.20 GP/s
GigaPixels - higher is better
GeForce GT 640 GDDR5
16.70 GT/s
Radeon R7 250X
38.00 GT/s
GigaTexels - higher is better
GeForce GT 640 GDDR5
40.10 GB/s
Radeon R7 250X
72.00 GB/s
GB/s - higher is better
GeForce GT 640 GDDR5
803.30 GFLOPs
Radeon R7 250X
1216.00 GFLOPs
GFLOPs - higher is better
GeForce GT 640 GDDR5
2280
Radeon R7 250X
4020
Points (higher is better)