AMD Radeon RX 6900 XT vs Nvidia GeForce RTX 4090 Mobile
Verdict
Our overall take, at a glance
Key takeaways
- AMD Radeon RX 6900 XT and Nvidia GeForce RTX 4090 Mobile are closely matched overall (within 1 point).
- AMD Radeon RX 6900 XT stands out on Miscellaneous Platform: Desktop.
- Nvidia GeForce RTX 4090 Mobile counters with Core Specifications Base Power: 320 W, Core Specifications Maximum Power: 460 W, Core Specifications Lithography Process: 4 nm.
AMD Radeon RX 6900 XT and Nvidia GeForce RTX 4090 Mobile are closely matched
$999 at launch
AMD Radeon RX 6900 XT
90
Nvidia GeForce RTX 4090 Mobile
89
Where AMD Radeon RX 6900 XT stands out
- Miscellaneous Platform: Desktop
Where Nvidia GeForce RTX 4090 Mobile stands out
- Core Specifications Base Power: 320 W
- Core Specifications Maximum Power: 460 W
- Core Specifications Lithography Process: 4 nm
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jul 2026.
AMD Radeon RX 6900 XT
The AMD Radeon RX 6900 XT is an enthusiast-class graphics card powered by the Navi 21 graphics processor and equipped with 16GB of GDDR6 memory. Designed for high-end desktop gaming, it targets users looking for flagship performance to challenge Nvidia's top-tier RTX 3090 but at a lower initial price point. The card introduces hardware-based ray tracing capabilities alongside AMD's Smart Access Memory technology.
Best for High-framerate 1440p and 4K gaming in traditional rasterized titles where ray trBest for PC builders with compatible Ryzen processors looking to leverage Smart Access Me
Pros
- Competitive traditional rasterization performance that closely matches the more expensive RTX 3090 in several titles
- Lower launch price compared to competing flagship graphics cards from Nvidia
- Performance advantages when utilizing Smart Access Memory on compatible AMD platforms
- Solid thermal and acoustic performance on the reference cooler design
Cons
- Disappointing ray-tracing performance compared to Nvidia's RTX 30-series competitors
- Lacked a mature, widely supported DLSS competitor for image upscaling at launch
Nvidia GeForce RTX 4090 Mobile
The GeForce RTX 40 series includes GPUs manufactured by Nvidia that succeeded models from the previous generation. These graphics processing units are based on the Ada Lovelace architecture, featuring third-generation RT cores for ray tracing and fourth-generation Tensor Cores.
Best for high performance computing
Pros
- Utilizes the Ada Lovelace architecture
- Supports features like Optical Flow Accelerator for DLSS 3.0 frame generation
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 4090 Mobile
Performance
Higher benchmark score = faster
AMD Radeon RX 6900 XT24,168
Nvidia GeForce RTX 4090 Mobile30,798
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
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Detailed Specifications
The full spec sheet, side by side