GeForce GTX 660M vs GeForce 820M
Summary
Reasons to consider GeForce GTX 660M |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |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 820M |
| This is a much newer product, it might have better long term support. |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
No clear winner declared
We have no data to declare a winner at this time.
Core Configuration
| GeForce GTX 660M | | GeForce 820M | |
|---|
| GPU Name | GK107 (N13E-GE-A2) | vs | GK107 () |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 118 mm² | vs | 118 mm² |
| Transistors | 1,270 million | vs | 1,270 million |
| Shaders | 384 | vs | 384 |
| Compute Units | 2 | vs | 2 |
| Core clock | 835 MHz | vs | 810 MHz |
| ROPs | 16 | vs | 16 |
| TMUs | 32 | vs | 32 |
Memory Configuration
| GeForce GTX 660M | | GeForce 820M | |
|---|
| Memory Type | GDDR5 | vs | DDR3 |
| Bus Width | 128 bit | vs | 128 bit |
| Memory Speed | 1000 MHz
4000 MHz effective | vs | 901 MHz
1802 MHz effective |
| Memory Size | 1024 Mb | vs | 2048 Mb |
Additional details
| GeForce GTX 660M | | GeForce 820M | |
|---|
| TDP | 50 watts | vs | 45 watts |
| Release Date | 22 Mar 2012 | vs | 21 Mar 2015 |
GeForce GTX 660M
6.68 GP/s
GeForce 820M
6.48 GP/s
GigaPixels - higher is better
GeForce GTX 660M
26.72 GT/s
GeForce 820M
25.92 GT/s
GigaTexels - higher is better
GeForce GTX 660M
64.00 GB/s
GeForce 820M
28.83 GB/s
GB/s - higher is better
GeForce GTX 660M
641.30 GFLOPs
GeForce 820M
622.10 GFLOPs
GFLOPs - higher is better