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AMD Radeon RX 6900 XT vs NVIDIA MSI Suprim X GeForce RTX 4090: Comparison
AMD Radeon RX 6900 XT and NVIDIA MSI Suprim X GeForce RTX 4090 separate most on tdp: AMD Radeon RX 6900 XT at 300 W, NVIDIA MSI Suprim X GeForce RTX 4090 at 450 W, 50% in favour of AMD Radeon RX 6900 XT. Slot Width splits them by another 40%, again favouring AMD Radeon RX 6900 XT. In Blender Cycles (GPU) the NVIDIA MSI Suprim X GeForce RTX 4090 scores 11,062 against 2,603 for the AMD Radeon RX 6900 XT, a lead of 76%.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | AMD | NVIDIA |
| Series | Radeon RX 6000 | GeForce RTX 40 |
| Board Partner | Reference | MSI |
| VRAM | 16 GB-33% | 24 GB |
| Tier | Flagship | Flagship |
| Memory Type | GDDR6 | GDDR6X |
| Boost Clock | 2250 MHz-14% | 2610 MHz |
| Ray Tracing Support | Yes | true |
| TDP | 300 W | 450 W-50% |
| Architecture | RDNA 2 | Ada Lovelace (AD102) |
| Card Length | 267 mm | 337 mm-26% |
| Slot Width | 2.5 | 3.5-40% |
| MSRP | 999 | 1599 |
Benchmarks
Measured results, not specifications. Percentages are the gap to the leading product in each test.
Blender Cycles (GPU)
Blender 4.5, Blender Open Data (CC0). Median of monster + junkshop + classroom, combined samples/min.
Blender renders 3D scenes by tracing light through them, which loads every shader unit on the card at once. The score measures sustained render throughput, so it tells you what a card does in Cycles and similar renderers rather than what it does in a game. Figures come from Blender's Open Data project, which places no restriction on reuse, and we publish the median of every submission for that card on the same Blender version.
Verdict
AMD Radeon RX 6900 XT
9 / 10 Expert Rating
A solid flagship pick if its price and 16GB VRAM allocation match your target resolution.
NVIDIA MSI Suprim X GeForce RTX 4090
9 / 10 Expert Rating
A solid flagship pick if its price and 24GB VRAM allocation match your target resolution.
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