GeForce RTX 3090 vs Radeon RX 6900 XT
The GeForce RTX 3090 and Radeon RX 6900 XT trade blows on raw performance, landing within a few percent of each other. Best performance and best value in one card here — the clear recommendation if you can afford it.
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Radeon RX 6900 XT vs GeForce RTX 3090: In-Depth Breakdown
Performance: Radeon RX 6900 XT vs GeForce RTX 3090
The GeForce RTX 3090 and Radeon RX 6900 XT post nearly the same score in our performance index, so neither holds a meaningful raw-speed advantage. Both are best suited to 1440p gaming.
Price & Value
The Radeon RX 6900 XT currently lists from $660 CAD, $140 CAD less than the GeForce RTX 3090 at $800 CAD. Because it's both faster and competitively priced, the Radeon RX 6900 XT wins on performance-per-dollar by about 24%. The Radeon RX 6900 XT is trading below its $999 CAD MSRP — a genuine deal. The GeForce RTX 3090 is trading below its $1,499 CAD MSRP — a genuine deal.
Power & Efficiency
At 300W against 350W, the Radeon RX 6900 XT is both the lower-power and the more efficient card, making it the easier build to cool and power.
VRAM & Future-Proofing
VRAM favors the GeForce RTX 3090 at 24GB versus 16GB on the Radeon RX 6900 XT — that extra 8GB matters most at 4K, with high-res texture packs, and for content-creation/local-AI work.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 3090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6900 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 3090 or Radeon RX 6900 XT?
The Radeon RX 6900 XT is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the GeForce RTX 3090 if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 6900 XT better than the GeForce RTX 3090?
Which is better for 4K gaming, the GeForce RTX 3090 or the Radeon RX 6900 XT?
Is the GeForce RTX 3090 worth the extra $140 CAD over the Radeon RX 6900 XT?
Does the GeForce RTX 3090 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3090 or Radeon RX 6900 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3090 | Radeon RX 6900 XT |
|---|---|---|
| Architecture | Ampere | RDNA 2 |
| Process Node | Samsung 8nm | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 10,496✓ | 5,120 |
| Ray Tracing Cores | 82✓ | 80 |
| Tensor / AI Cores | 328 | — |
Clock Speeds
| Specification | GeForce RTX 3090 | Radeon RX 6900 XT |
|---|---|---|
| Base Clock | 1,395 MHz | 1,825 MHz✓ |
| Boost Clock | 1,695 MHz | 2,250 MHz✓ |
Memory
| Specification | GeForce RTX 3090 | Radeon RX 6900 XT |
|---|---|---|
| VRAM Capacity | 24 GB✓ | 16 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit✓ | 256-bit |
| Memory Speed | 19.5 Gbps✓ | 16 Gbps |
| Bandwidth | 936 GB/s✓ | 512 GB/s |
Connectivity & Power
| Specification | GeForce RTX 3090 | Radeon RX 6900 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 350 W | 300 W✓ |
| Power Connectors | 1x 12-pin | 2x 8-pin |
| Released | Sep 2020 | Dec 2020 |
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