RTX 3080 Ti vs RX 6800 XT: Which Should You Actually Buy?

A head-to-head comparison of the RTX 3080 Ti and the RX 6800 XT. NVIDIA 12 GB GDDR6X, ~350 W. Last updated 2026-03-17.

RTX 3080 Ti vs RX 6800 XT: the short version

Two strong options in the same gpu class, aimed at different buyers. Below is a clean side-by-side, the real performance gap, and a no-nonsense recommendation so you stop second-guessing and buy the one that fits your build and budget.

Side-by-side specs

| Spec | RTX 3080 Ti | RX 6800 XT | | --- | --- | --- | | Vendor | NVIDIA | AMD | | Tier | ultra | ultra | | Released | 2021 | 2020 | | VRAM | 12 GB GDDR6X | 16 GB GDDR6 | | Board power | 350 W | 300 W |

Real-world performance (estimated)

Estimated average FPS from a tuned config — your CPU, resolution and settings shift these, but the gap between the two holds:

| Model | 1080P Low | 1080P Med | 1080P High | 2K Med | 4K Med | | --- | --- | --- | --- | --- | --- | | RTX 3080 Ti | ~177 | ~141 | ~110 | ~79 | ~38 | | RX 6800 XT | ~193 | ~154 | ~120 | ~86 | ~42 |

Head-to-head: who wins what

• Performance: RTX 3080 Ti and RX 6800 XT trade blows by workload. RTX 3080 Ti has the edge where its stronger 12 GB GDDR6X and 350 W of headroom matters; RX 6800 XT wins the rest.
• Efficiency: RX 6800 XT draws less power and is easier to cool and power.
• Value: Same-class rivals shift price constantly — check current street pricing and let the cheaper one at your target resolution decide value.
• Our pick: Buy RTX 3080 Ti if you want the outright ceiling and can cool/power it. Buy RX 6800 XT if you want lower power, lower cost, or a feature the other lacks. (Plan for ~350 W board power plus the rest of the system.)

Confirm headroom before you commit

A limit you cannot see will eat your gains. Run the GPU FPS Estimator to confirm the pair fits your build before you buy either.