GeForce GT 640 GDDR5 vs GeForce GTX TITAN Z
Summary
Reasons to consider GeForce GT 640 GDDR5 |
| 326 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX TITAN Z . |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |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 GeForce GTX TITAN Z |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |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 GTX TITAN Z
Based on theoretical specifications.
Core Configuration
| GeForce GT 640 GDDR5 | | GeForce GTX TITAN Z | |
|---|
| GPU Name | GK208 (GK208-400-A1) | vs | GK110B (GK110-430-B1) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 87 mm² | vs | 561 mm² |
| Transistors | unknown | vs | 7,080 million |
| Shaders | 384 | vs | 2880 |
| Compute Units | 2 | vs | 15 |
| Core clock | 1046 MHz | vs | 705 MHz |
| ROPs | 8 | vs | 48 |
| TMUs | 16 | vs | 240 |
Memory Configuration
| GeForce GT 640 GDDR5 | | GeForce GTX TITAN Z | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 384 bit x2 |
| Memory Speed | 1252 MHz
5008 MHz effective | vs | 1750 MHz
7000 MHz effective |
| Memory Size | 1024 Mb | vs | 6144 Mb |
Additional details
| GeForce GT 640 GDDR5 | | GeForce GTX TITAN Z | |
|---|
| TDP | 49 watts | vs | 375 watts |
| Release Date | 29 May 2013 | vs | 28 May 2014 |
GeForce GT 640 GDDR5
8.37 GP/s
GeForce GTX TITAN Z
84.60 GP/s
GigaPixels - higher is better
GeForce GT 640 GDDR5
16.70 GT/s
GeForce GTX TITAN Z
338.40 GT/s
GigaTexels - higher is better
GeForce GT 640 GDDR5
40.10 GB/s
GeForce GTX TITAN Z
672.00 GB/s
GB/s - higher is better
GeForce GT 640 GDDR5
803.30 GFLOPs
GeForce GTX TITAN Z
8122.00 GFLOPs
GFLOPs - higher is better