AMD Radeon R9 270 1024SP 's Advantages
Released 2 years and 11 months late
Boost Clock925MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (153.6GB/s vs 91.87GB/s)
736 additional rendering cores
NVIDIA GeForce GT 645 OEM 's Advantages
Lower TDP (102W vs 150W)