AMD Radeon RX 590 's Advantages
Released 7 years and 9 months late
Boost Clock1545MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (256.0GB/s vs 8.528GB/s)
2144 additional rendering cores
AMD Radeon HD 6450 OEM 's Advantages
Lower TDP (18W vs 175W)