The GPU Radar

AMD RX 7800 XTvsNVIDIA RTX 4090

Cross-brand comparison: NVIDIA offers DLSS and CUDA for AI/ML workloads. AMD offers competitive rasterization, often with more VRAM at the same price. Choose based on your ecosystem needs.
AMD RX 7800 XT
Buy/Wait:Superseded

This GPU is no longer the current generation. It has been replaced by the AMD RX 9070.

Superseded by RX 9070

Best for: 1440p gamers who can find a used unit near or below the $499 MSRP — at current above-MSRP new prices, the RX 9070 is the better buy.

Full details →
NVIDIA RTX 4090
Buy/Wait:Superseded

This GPU is no longer the current generation. It has been replaced by the NVIDIA RTX 5090.

Superseded by RTX 5090

Best for: 4K enthusiasts who can find a well-priced used RTX 4090 and don't need DLSS 4 or Blackwell's efficiency improvements.

Full details →
AMD RX 7800 XTNVIDIA RTX 4090
TierHigh-endEnthusiast
GenerationRX 7000RTX 4000
VRAM16 GB24 GB
Memory TypeGDDR6GDDR6X
TDP263W450W
UpscalingFSR3DLSS3
Ray Tracing
Launch MSRP$499$1599
ReleasedSep 6, 2023Oct 12, 2022
Cycle length~550 days~840 days
Cycle adviceSupersededSuperseded
Deals adviceClearanceClearance
SuccessorRX 9070RTX 5090

Why buy each?

AMD RX 7800 XT

Used market value

New prices (~$799) are well above MSRP due to the memory shortage — used units around $475 are the only remaining value path.

16GB GDDR6

Same VRAM as its successor — no VRAM compromise.

Mature RDNA 3 drivers

Well-optimized after 18+ months of updates.

NVIDIA RTX 4090

24GB GDDR6X — more VRAM than RTX 5080

More VRAM than the RTX 5080 (16GB), relevant for AI workloads and 4K texture packs even in the Blackwell era.

Used market only

New retail units are scarce and priced above MSRP. The used market (eBay, local classifieds) is the only viable path to value.

Mature driver ecosystem

Over 3 years of driver optimizations make this one of the most stable GPUs available.