GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Quick Verdict

On raw speed the GeForce RTX 4090 comes out significantly faster — about 39% ahead of the Radeon RX 7900 XT. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.

Maximum Capacity Reached. Remove a model to add another. (2/2)

VS
NVIDIA
GeForce RTX 4090
Price
$475
Perf Index
75%
Value Score
0.158
VRAM24GB GDDR6
Thermal TDP450W
Price
$1264
Perf Index
54%
Value Score
0.043
VRAM20GB GDDR6
Thermal TDP300W

GeForce RTX 4090 vs Radeon RX 7900 XT: In-Depth Breakdown

Performance: GeForce RTX 4090 vs Radeon RX 7900 XT

The GeForce RTX 4090 is significantly faster, around 39% ahead of the Radeon RX 7900 XT. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the Radeon RX 7900 XT is better matched to 4K with upscaling and native 1440p.

Price & Value

The GeForce RTX 4090 currently lists from $475, $789 less than the Radeon RX 7900 XT at $1,264. Because it's both faster and competitively priced, the GeForce RTX 4090 wins on performance-per-dollar by about 270%. The GeForce RTX 4090 is trading below its $1,599 MSRP — a genuine deal. The Radeon RX 7900 XT still sits about $365 above its $899 MSRP.

Power & Efficiency

At 300W against 450W, the Radeon RX 7900 XT is both the lower-power and the more efficient card, making it the easier build to cool and power.

VRAM & Future-Proofing

The GeForce RTX 4090 carries 24GB versus 20GB on the Radeon RX 7900 XT. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.

Features & Ecosystem

Beyond raw numbers, the GeForce RTX 4090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 7900 XT offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.

Which should you buy: GeForce RTX 4090 or Radeon RX 7900 XT?

the GeForce RTX 4090 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 7900 XT if you find it at a steep discount.

Frequently Asked Questions

Is the GeForce RTX 4090 better than the Radeon RX 7900 XT?

The GeForce RTX 4090 is significantly faster, roughly 39% ahead. If your budget allows, it's the stronger pick.

Which is better for 4K gaming, the GeForce RTX 4090 or the Radeon RX 7900 XT?

The GeForce RTX 4090 is the better 4K option — it's comfortable at 4K and high-refresh 1440p, and its 24GB of VRAM helps with 4K textures.

Is the Radeon RX 7900 XT worth the extra $789 over the GeForce RTX 4090?

Only if you need the extra performance or features; on pure value the GeForce RTX 4090 comes out ahead.

Does the GeForce RTX 4090 have enough VRAM advantage to matter?

Its 24GB (vs 20GB) gives real headroom for 4K, heavy texture mods, and creative/AI work. At 1080p the gap matters less.