GeForce GTX 950M vs GeForce GT 640
Summary
GeForce GTX 950M
201%
GeForce GT 640
100%
Relative performance
Reasons to consider GeForce GTX 950M |
| This is a much newer product, it might have better long term support. |
| Around 101% 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| Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications |
Reasons to consider GeForce GT 640 |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |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 GTX 950M
The GeForce GTX 950M is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| GeForce GTX 950M | | GeForce GT 640 | |
|---|
| GPU Name | GM107 (N16P-GT) | vs | GK107 (GK107-300-A2) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 148 mm² | vs | 118 mm² |
| Transistors | 1,870 million | vs | 1,270 million |
| Shaders | 640 | vs | 384 |
| Compute Units | 5 | vs | 2 |
| Core clock | 993 MHz | vs | 902 MHz |
| ROPs | 16 | vs | 16 |
| TMUs | 40 | vs | 32 |
Memory Configuration
| GeForce GTX 950M | | GeForce GT 640 | |
|---|
| Memory Type | DDR3 | vs | DDR3 |
| Bus Width | 128 bit | vs | 128 bit |
| Memory Speed | 900 MHz
1800 MHz effective | vs | 891 MHz
1782 MHz effective |
| Memory Size | 4096 Mb | vs | 2048 Mb |
Additional details
| GeForce GTX 950M | | GeForce GT 640 | |
|---|
| TDP | 75 watts | vs | 65 watts |
| Release Date | 13 Mar 2015 | vs | 5 Jun 2012 |
GeForce GTX 950M
15.89 GP/s
GeForce GT 640
7.22 GP/s
GigaPixels - higher is better
GeForce GTX 950M
39.70 GT/s
GeForce GT 640
28.90 GT/s
GigaTexels - higher is better
GeForce GTX 950M
28.80 GB/s
GeForce GT 640
28.50 GB/s
GB/s - higher is better
GeForce GTX 950M
1271.00 GFLOPs
GeForce GT 640
692.70 GFLOPs
GFLOPs - higher is better
GeForce GTX 950M
4410
GeForce GT 640
2190
Points (higher is better)