AMD Radeon RX 580G 's Advantages
Released 11 years and 9 months late
Boost Clock1330MHz
More VRAM (8GB vs 256GB)
Larger VRAM bandwidth (256.0GB/s vs 4.256GB/s)
2304 additional rendering cores
ATI Radeon X1550 PCI 's Advantages
Lower TDP (27W vs 185W)