AMD Radeon 550X 640SP 's Advantages
Released 7 years and 6 months late
Boost Clock1071MHz
More VRAM (4GB vs 1024GB)
Lower TDP (50W vs 151W)
AMD Radeon HD 6870 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 48.00GB/s)
480 additional rendering cores