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AMD Sapphire Nitro+ Radeon RX 6900 XT vs AMD Sapphire Nitro+ Radeon RX 7900 XTX: Comparison
AMD Sapphire Nitro+ Radeon RX 6900 XT and AMD Sapphire Nitro+ Radeon RX 7900 XTX separate most on vram: AMD Sapphire Nitro+ Radeon RX 6900 XT at 16 GB, AMD Sapphire Nitro+ Radeon RX 7900 XTX at 24 GB, 33% in favour of AMD Sapphire Nitro+ Radeon RX 7900 XTX. TDP splits them by another 18%, this time favouring AMD Sapphire Nitro+ Radeon RX 6900 XT. They match on 7 other specifications, including gpu brand, board partner and tier. In Blender Cycles (GPU) the AMD Sapphire Nitro+ Radeon RX 7900 XTX scores 4,338 against 2,603 for the AMD Sapphire Nitro+ Radeon RX 6900 XT, a lead of 40%.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | AMD | AMD |
| Series | Radeon RX 6000 | Radeon RX 7000 |
| Board Partner | Sapphire | Sapphire |
| VRAM | 16 GB-33% | 24 GB |
| Tier | Flagship | Flagship |
| Memory Type | GDDR6 | GDDR6 |
| Boost Clock | 2340 MHz-9% | 2565 MHz |
| Ray Tracing Support | true | true |
| TDP | 300 W | 355 W-18% |
| Architecture | RDNA 2 (Navi 21) | RDNA 3 (Navi 31) |
| Card Length | 286 mm | 320 mm-12% |
| Slot Width | 2.5 | 2.5 |
| MSRP | 999 | 999 |
| Stream Processors | 5120 | 6144 |
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 Sapphire Nitro+ Radeon RX 6900 XT
9 / 10 Expert Rating
A solid flagship pick if its price and 16GB VRAM allocation match your target resolution.
AMD Sapphire Nitro+ Radeon RX 7900 XTX
9 / 10 Expert Rating
A solid flagship pick if its price and 24GB VRAM allocation match your target resolution.
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