AMD Radeon 550X 's Advantages
Released 8 years and 9 months late
Boost Clock1218MHz
More VRAM (2GB vs 1024GB)
Lower TDP (50W vs 228W)
ATI Radeon HD 5870 Mac Edition 's Advantages
Larger VRAM bandwidth (153.0GB/s vs 112.0GB/s)
1088 additional rendering cores