GeForce 840M vs Radeon HD 8690M
Summary
Reasons to consider GeForce 840M |
| 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| Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications |
Reasons to consider Radeon HD 8690M |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends GeForce 840M
Based on theoretical specifications.
Core Configuration
| GeForce 840M | | Radeon HD 8690M | |
|---|
| GPU Name | GM108 (N15S-GT) | vs | Sun (Sun XT) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 0 mm² | vs | 77 mm² |
| Transistors | unknown | vs | 1,040 million |
| Shaders | 384 | vs | 320 |
| Compute Units | 3 | vs | 5 |
| Core clock | 1029 MHz | vs | 775 MHz |
| ROPs | 8 | vs | 8 |
| TMUs | 16 | vs | 20 |
Memory Configuration
| GeForce 840M | | Radeon HD 8690M | |
|---|
| Memory Type | DDR3 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 64 bit |
| Memory Speed | 1001 MHz
2002 MHz effective | vs | 1000 MHz
4000 MHz effective |
| Memory Size | 1024 Mb | vs | 1024 Mb |
Additional details
| GeForce 840M | | Radeon HD 8690M | |
|---|
| TDP | 33 watts | vs | 0 watts |
| Release Date | 12 Mar 2014 | vs | 1 Mar 2013 |
GeForce 840M
8.23 GP/s
Radeon HD 8690M
6.60 GP/s
GigaPixels - higher is better
GeForce 840M
16.46 GT/s
Radeon HD 8690M
16.50 GT/s
GigaTexels - higher is better
GeForce 840M
16.02 GB/s
Radeon HD 8690M
32.00 GB/s
GB/s - higher is better
GeForce 840M
790.30 GFLOPs
Radeon HD 8690M
528.00 GFLOPs
GFLOPs - higher is better