GeForce GTX 660 vs Radeon HD 6870 X2
Summary
Reasons to consider GeForce GTX 660 |
| 160 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
Reasons to consider Radeon HD 6870 X2 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
HWBench recommends GeForce GTX 660
Based on theoretical specifications.
Core Configuration
| GeForce GTX 660 | | Radeon HD 6870 X2 | |
|---|
| GPU Name | GK106 (GK106-400-A1) | vs | Barts (Barts XT) |
| Fab Process | 28 nm | vs | 40 nm |
| Die Size | 221 mm² | vs | 255 mm² |
| Transistors | 2,540 million | vs | 1,700 million |
| Shaders | 960 | vs | 1120 |
| Compute Units | 5 | vs | 14 |
| Core clock | 980 MHz | vs | 900 MHz |
| ROPs | 24 | vs | 32 |
| TMUs | 80 | vs | 56 |
Memory Configuration
| GeForce GTX 660 | | Radeon HD 6870 X2 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 192 bit | vs | 256 bit x2 |
| Memory Speed | 1502 MHz
6008 MHz effective | vs | 1050 MHz
4200 MHz effective |
| Memory Size | 2048 Mb | vs | 1024 Mb |
Additional details
| GeForce GTX 660 | | Radeon HD 6870 X2 | |
|---|
| TDP | 140 watts | vs | 300 watts |
| Release Date | 6 Sep 2012 | vs | 8 Jul 2011 |
GeForce GTX 660
19.60 GP/s
Radeon HD 6870 X2
57.60 GP/s
GigaPixels - higher is better
GeForce GTX 660
78.40 GT/s
Radeon HD 6870 X2
100.80 GT/s
GigaTexels - higher is better
GeForce GTX 660
144.00 GB/s
Radeon HD 6870 X2
268.00 GB/s
GB/s - higher is better
GeForce GTX 660
1882.00 GFLOPs
Radeon HD 6870 X2
4032.00 GFLOPs
GFLOPs - higher is better