GPU comparison · 1080p benchmark
RX 6900 XT 16GB recorded 368 FPS against 285 FPS for RTX 4070 12GB. These are continuous 1080p benchmark averages, not predicted FPS in any particular game.
RX 6900 XT 16GB
368Benchmark FPS at 1080p- Our rating
- 76.7 / 100
- Graphics memory
- 16GB
- Released
- December 2020
- GPUsed cards tested
- 22
RTX 4070 12GB
285Benchmark FPS at 1080p- Our rating
- 70.2 / 100
- Graphics memory
- 12GB
- Released
- April 2023
- GPUsed cards tested
- 56
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What does this comparison mean?
The RX 6900 XT records more FPS than the newer RTX 4070 here, with 16GB rather than 12GB. An older flagship can remain ahead of a newer lower-tier model in a particular workload. That does not settle every application or feature comparison, but it rules out judging this pair by release date alone.
RX 6900 XT 16GB has 16GB and RTX 4070 12GB has 12GB of graphics memory. Memory capacity, board dimensions, power connectors and the price of a particular used card are separate from this benchmark. Compare the exact item before deciding whether to upgrade.
The two GPUs in context
RX 6900 XT 16GB
The RX 6900 XT arrived in December 2020 with RDNA 2 architecture and 16GB of GDDR6. It uses the full Navi 21 configuration, rather than the reduced configuration of the RX 6800 XT.
RTX 4070 12GB
The RTX 4070 launched in April 2023 with Ada Lovelace architecture and 12GB of GDDR6X. It is separate from the RTX 4070 Super.
Release and feature sources: RX 6900 XT 16GB source · RTX 4070 12GB source.
How the figures are compared
Both FPS figures come from the owner-supplied GPUsed benchmark dataset. GPUsed reports a continuous FurMark run at 1080p for its physical-card checks. The percentage compares the higher model average with the lower one using the original FPS values. Our rating uses a compressed scale, with the fastest GPU at 100; it is separate from the percentage difference. A benchmark result does not predict gaming FPS.
GPUsed reports its physical-card checks typically last 30 to 60 minutes while temperature and stability are checked. The owner supplied the model-level FPS workbook on 2 October 2026; this benchmark dataset was last reconciled 3 October 2026. Historical cards tested are separate from the number of FPS runs behind a model average. Full benchmark method.