AMD Radeon R9 270 1024SP 's Advantages
Released 3 years and 4 months late
Boost Clock925MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (153.6GB/s vs 6.400GB/s)
944 additional rendering cores
ATI Radeon HD 4450 's Advantages
Lower TDP (25W vs 150W)