Radeon HD 4670 X2 vs GeForce GT 640
Summary
Reasons to consider Radeon HD 4670 X2 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider GeForce GT 640 |
| 53 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 4670 X2 . |
| This is a much newer product, it might have better long term support. |
| Higher theoretical gaming performance, based on specifications. |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
HWBench recommends GeForce GT 640
Based on theoretical specifications.
Core Configuration
| Radeon HD 4670 X2 | | GeForce GT 640 | |
|---|
| GPU Name | RV730 (RV730 XT) | vs | GK107 (GK107-300-A2) |
| Fab Process | 55 nm | vs | 28 nm |
| Die Size | 146 mm² | vs | 118 mm² |
| Transistors | 514 million | vs | 1,270 million |
| Shaders | 320 | vs | 384 |
| Compute Units | 4 | vs | 2 |
| Core clock | 750 MHz | vs | 902 MHz |
| ROPs | 8 | vs | 16 |
| TMUs | 32 | vs | 32 |
Memory Configuration
| Radeon HD 4670 X2 | | GeForce GT 640 | |
|---|
| Memory Type | GDDR3 | vs | DDR3 |
| Bus Width | 128 bit x2 | vs | 128 bit |
| Memory Speed | 700 MHz
1400 MHz effective | vs | 891 MHz
1782 MHz effective |
| Memory Size | 512 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 4670 X2 | | GeForce GT 640 | |
|---|
| TDP | 118 watts | vs | 65 watts |
| Release Date | 10 Sep 2008 | vs | 5 Jun 2012 |
Radeon HD 4670 X2
12.00 GP/s
GeForce GT 640
7.22 GP/s
GigaPixels - higher is better
Radeon HD 4670 X2
48.00 GT/s
GeForce GT 640
28.90 GT/s
GigaTexels - higher is better
Radeon HD 4670 X2
44.80 GB/s
GeForce GT 640
28.50 GB/s
GB/s - higher is better
Radeon HD 4670 X2
960.00 GFLOPs
GeForce GT 640
692.70 GFLOPs
GFLOPs - higher is better