Graphics card comparison
GeForce GT 640 vs GeForce GT 730 GDDR5
Nvidia
GeForce GT 640
2048 Mb DDR3
Released 5 Jun 2012
DESKTOP
VS
Nvidia
GeForce GT 730 GDDR5
1024 Mb GDDR5
Released 18 Jun 2014
DESKTOP
Summary
Synthetic performance index
- GeForce GT 640140%
- GeForce GT 730 GDDR5100%
Relative performance
Reasons to consider the GeForce GT 640
- Around 40% higher average synthetic performance.
- 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- Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 the GeForce GT 730 GDDR5
- This is a much newer product, it might have better long term support.
- 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- Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications
Our verdict
HWSpot recommends the GeForce GT 640
The GeForce GT 640 is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Specifications
Core configuration
| GeForce GT 640 | GeForce GT 730 GDDR5 |
|---|
| GPU Name | GK107 (GK107-300-A2) | GK208 () |
| Fab Process | 28 nm | 28 nm |
| Die Size | 118 mm² | 87 mm² |
| Transistors | 1,270 million | unknown |
| Shaders | 384 | 384 |
| Compute Units | 2 | 2 |
| Core clock | 902 MHz | 902 MHz |
| ROPs | 16 | 8 |
| TMUs | 32 | 16 |
Memory configuration
| GeForce GT 640 | GeForce GT 730 GDDR5 |
|---|
| Memory Type | DDR3 | GDDR5 |
| Bus Width | 128 bit | 64 bit |
| Memory Speed | 891 MHz
1782 MHz effective | 1253 MHz
5012 MHz effective |
| Memory Size | 2048 Mb | 1024 Mb |
Additional details
| GeForce GT 640 | GeForce GT 730 GDDR5 |
|---|
| TDP | 65 watts | 38 watts |
| Release Date | 5 Jun 2012 | 18 Jun 2014 |
Raw performance comparison
Pixel Rate
- GeForce GT 6407.22 GP/s
- GeForce GT 730 GDDR57.22 GP/s
GigaPixels - higher is better
Texel Rate
- GeForce GT 64028.90 GT/s
- GeForce GT 730 GDDR514.43 GT/s
GigaTexels - higher is better
Memory bandwidth
- GeForce GT 64028.50 GB/s
- GeForce GT 730 GDDR540.10 GB/s
GB/s - higher is better
Single precision performance
- GeForce GT 640692.70 GFLOPs
- GeForce GT 730 GDDR5692.70 GFLOPs
GFLOPs - higher is better
Synthetic benchmarks
3DMark 11
- GeForce GT 6402190
- GeForce GT 730 GDDR51560
Points (higher is better)