GeForce 9800 GT vs GeForce GT 640
Summary
GeForce 9800 GT
100%
GeForce GT 640
167%
Relative performance
Reasons to consider GeForce 9800 GT |
| Based on an outdated architecture (Nvidia Tesla), there are no performance optimizations for current games and applications |
| PhysX support, however PhysX performance on newest games may be poor |
Reasons to consider GeForce GT 640 |
| 60 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce 9800 GT . |
| This is a much newer product, it might have better long term support. |
| Around 67% 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
HWBench recommends GeForce GT 640
The GeForce GT 640 is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| GeForce 9800 GT | | GeForce GT 640 | |
|---|
| GPU Name | G92 (G92-270-A2) | vs | GK107 (GK107-300-A2) |
| Fab Process | 65 nm | vs | 28 nm |
| Die Size | 324 mm² | vs | 118 mm² |
| Transistors | 754 million | vs | 1,270 million |
| Shaders | 112 | vs | 384 |
| Compute Units | 7 | vs | 2 |
| Core clock | 600 MHz | vs | 902 MHz |
| ROPs | 16 | vs | 16 |
| TMUs | 56 | vs | 32 |
Memory Configuration
| GeForce 9800 GT | | GeForce GT 640 | |
|---|
| Memory Type | GDDR3 | vs | DDR3 |
| Bus Width | 256 bit | vs | 128 bit |
| Memory Speed | 900 MHz
1800 MHz effective | vs | 891 MHz
1782 MHz effective |
| Memory Size | 512 Mb | vs | 2048 Mb |
Additional details
| GeForce 9800 GT | | GeForce GT 640 | |
|---|
| TDP | 125 watts | vs | 65 watts |
| Release Date | 21 Jul 2008 | vs | 5 Jun 2012 |
GeForce 9800 GT
9.60 GP/s
GeForce GT 640
7.22 GP/s
GigaPixels - higher is better
GeForce 9800 GT
33.60 GT/s
GeForce GT 640
28.90 GT/s
GigaTexels - higher is better
GeForce 9800 GT
57.60 GB/s
GeForce GT 640
28.50 GB/s
GB/s - higher is better
GeForce 9800 GT
336.00 GFLOPs
GeForce GT 640
692.70 GFLOPs
GFLOPs - higher is better
GeForce 9800 GT
1310
GeForce GT 640
2190
Points (higher is better)