nesse caso a HD 6870 é muito melhor olha isso: Higher memory bandwidth 134.4 GB/s vs 86.4 GB/s More than 55% higher memory bandwidth Higher pixel rate 29.8 GPixel/s vs 16.32 GPixel/s Around 85% higher pixel rate More render output processors 32 vs 16 Twice as many render output processors More shading units 1,120 vs 640 480 more shading units Slightly wider memory bus 256 bit vs 128 bit 2x wider memory bus
esse grafico é o da Amd comparando com a da Nvidia
agr olha esse Higher clock speed 1,020 MHz vs 930 MHz Around 10% higher clock speed Higher effective memory clock speed 5,400 MHz vs 4,200 MHz Around 30% higher effective memory clock speed Better PassMark score 3,688 vs 2,581 Around 45% better PassMark score More memory 2,048 MB vs 1,024 MB 2x more memory Better 3DMark vantage graphics score 20,401 vs 16,393 Around 25% better 3DMark vantage graphics score Higher texture rate 82.64 GTexel/s vs 52.1 GTexel/s Around 60% higher texture rate Significantly higher memory clock speed 1,502 MHz vs 1,050 MHz Around 45% higher memory clock speed Better PassMark direct compute score 1,680 vs 1,135 Around 50% better PassMark direct compute score
é o da nvidia comparado com o da AMD
amd é mais barato e muito mais superior que a 750TI