AMD Radeon HD 6850 's Advantages
Lower TDP (127W vs 300W)
AMD Radeon RX 7900 XT 's Advantages
Released 12 years and 1 months late
Boost Clock2394MHz
More VRAM (20GB vs 1GB)
Larger VRAM bandwidth (800.0GB/s vs 128.0GB/s)
4416 additional rendering cores