Radeon R9 280 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 14.40GB/s)
1280 additional rendering cores
NVS 810 's Advantages
Released 1 years and 8 months late
Boost Clock has increased by 11% (1033MHz vs 933MHz)
Lower TDP (68W vs 200W)