Graphics card comparison
GeForce GTX 660 vs Radeon HD 8870 OEM
Nvidia
GeForce GTX 660
2048 Mb GDDR5
Released 6 Sep 2012
DESKTOP
VS
AMD
Radeon HD 8870 OEM
2048 Mb GDDR5
Released 8 Jan 2013
DESKTOP
Summary
Reasons to consider the GeForce GTX 660
- 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- Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 Radeon HD 8870 OEM
- Supports Direct3D 12 Async Compute
- Supports ReLive (allows game streaming/recording with minimum performance penalty)
- Supports Mantle
- Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications
Our verdict
No clear winner declared
We have no data to declare a winner at this time.
Specifications
Core configuration
| GeForce GTX 660 | Radeon HD 8870 OEM |
|---|
| GPU Name | GK106 (GK106-400-A1) | Pitcairn (Pitcairn XT) |
| Fab Process | 28 nm | 28 nm |
| Die Size | 221 mm² | 212 mm² |
| Transistors | 2,540 million | 2,800 million |
| Shaders | 960 | 1280 |
| Compute Units | 5 | 20 |
| Core clock | 980 MHz | 1000 MHz |
| ROPs | 24 | 32 |
| TMUs | 80 | 80 |
Memory configuration
| GeForce GTX 660 | Radeon HD 8870 OEM |
|---|
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 192 bit | 256 bit |
| Memory Speed | 1502 MHz
6008 MHz effective | 1200 MHz
4800 MHz effective |
| Memory Size | 2048 Mb | 2048 Mb |
Additional details
| GeForce GTX 660 | Radeon HD 8870 OEM |
|---|
| TDP | 140 watts | 175 watts |
| Release Date | 6 Sep 2012 | 8 Jan 2013 |
Raw performance comparison
Pixel Rate
- GeForce GTX 66019.60 GP/s
- Radeon HD 8870 OEM32.00 GP/s
GigaPixels - higher is better
Texel Rate
- GeForce GTX 66078.40 GT/s
- Radeon HD 8870 OEM80.00 GT/s
GigaTexels - higher is better
Memory bandwidth
- GeForce GTX 660144.00 GB/s
- Radeon HD 8870 OEM154.00 GB/s
GB/s - higher is better
Single precision performance
- GeForce GTX 6601882.00 GFLOPs
- Radeon HD 8870 OEM2560.00 GFLOPs
GFLOPs - higher is better