We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon 550X 640SP 's Advantages
More VRAM (4GB vs 2GB)
128 additional rendering cores
AMD Radeon 550X 's Advantages
Released 11 months late
Boost Clock has increased by 14% (1218MHz vs 1071MHz)