AMD Radeon HD 8770 OEM 's Advantages
Lower TDP (85W vs 150W)
AMD Radeon RX 580 OEM 's Advantages
Released 2 years and 9 months late
Boost Clock1266MHz
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (256.0GB/s vs 96.00GB/s)
1408 additional rendering cores