AMD Radeon R9 270 's Advantages
Released 2 years and 7 months late
Boost Clock925MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (179.2GB/s vs 14.40GB/s)
1232 additional rendering cores
NVIDIA GeForce GT 520 PCIe x1 's Advantages
Lower TDP (29W vs 150W)