AMD Radeon RX 5500 XT 's Advantages
Released 6 years late
Boost Clock has increased by 98% (1845MHz vs 930MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 73.60GB/s)
896 additional rendering cores
AMD Radeon R9 255 OEM 's Advantages
Lower TDP (65W vs 130W)