The GPU Radar

AMD RX 7900 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 7900 XT
Buy/Wait:Wait

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

Superseded by RX 9070 XT

Best for: Gamers and creators who want 20GB VRAM at a clearance price — a middle ground between the 16GB mainstream and 24GB XTX.

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NVIDIA RTX 4090
Buy/Wait:Wait

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

Superseded by RTX 5090

Best for: 4K enthusiasts who can find the RTX 4090 at a significant discount and don't need DLSS 4 or GDDR7.

Full details →
AMD RX 7900 XTNVIDIA RTX 4090
TierEnthusiastEnthusiast
GenerationRX 7000RTX 4000
VRAM20 GB24 GB
Memory TypeGDDR6GDDR6X
TDP315W450W
UpscalingFSR3DLSS3
Ray Tracing
Launch MSRP$899$1599
ReleasedDec 13, 2022Oct 12, 2022
Cycle length~820 days~840 days
Cycle adviceWaitWait
Deals adviceBuyBuy
SuccessorRX 9070 XTRTX 5090

Why buy each?

AMD RX 7900 XT

20GB GDDR6 — unique VRAM tier

More VRAM than any RTX 5000 card except the 5090 (32GB), and 4GB more than the 7800 XT. A rare middle ground.

Generation-end clearance

Superseded but strong value — clearance pricing makes this competitive with the RX 9070 XT at launch MSRP.

Mature RDNA 3 drivers

Over 2 years of driver optimization for rock-solid stability.

NVIDIA RTX 4090

24GB GDDR6X — massive VRAM

More VRAM than the RTX 5080 (16GB), making it relevant for AI workloads and 4K texture packs.

Generation-end clearance pricing

Street prices have dropped significantly below $1599 MSRP, offering 5090-adjacent performance for less.

Mature driver ecosystem

Over 2 years of driver optimizations make this one of the most stable GPUs available.