AMD Radeon 550X 640SP 's Advantages
Released 10 years and 3 months late
Boost Clock1071MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (48.00GB/s vs 6.400GB/s)
600 additional rendering cores
ATI Radeon HD 3450 PCI 's Advantages
Lower TDP (25W vs 50W)