GeForce GT 755M Mac Edition vs Radeon HD 6990M
Summary
Reasons to consider GeForce GT 755M Mac Edition |
| 50 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6990M . |
| 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| Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications |
Reasons to consider Radeon HD 6990M |
| Around 13% higher average synthetic performance. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
HWBench recommends Radeon HD 6990M
The Radeon HD 6990M is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| GeForce GT 755M Mac Edition | | Radeon HD 6990M | |
|---|
| GPU Name | GK107 (GT 755M) | vs | Blackcomb (Blackcomb XTX) |
| Fab Process | 28 nm | vs | 40 nm |
| Die Size | 118 mm² | vs | 212 mm² |
| Transistors | 1,270 million | vs | 1,700 million |
| Shaders | 384 | vs | 1120 |
| Compute Units | 2 | vs | 14 |
| Core clock | 1085 MHz | vs | 715 MHz |
| ROPs | 16 | vs | 32 |
| TMUs | 32 | vs | 56 |
Memory Configuration
| GeForce GT 755M Mac Edition | | Radeon HD 6990M | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 128 bit | vs | 256 bit |
| Memory Speed | 1250 MHz
5000 MHz effective | vs | 900 MHz
3600 MHz effective |
| Memory Size | 1024 Mb | vs | 2048 Mb |
Additional details
| GeForce GT 755M Mac Edition | | Radeon HD 6990M | |
|---|
| TDP | 50 watts | vs | 100 watts |
| Release Date | 8 Nov 2013 | vs | 12 Jul 2011 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better
Points (higher is better)