ATI Radeon HD 4670 's Advantages
Lower TDP (59W vs 150W)
AMD Radeon R9 370 1024SP 's Advantages
Released 6 years and 9 months late
Boost Clock975MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (179.2GB/s vs 32.00GB/s)
704 additional rendering cores