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NVIDIA Gainward Phantom+ GeForce RTX 3080 vs AMD Sapphire Nitro+ Radeon RX 6800 XT: Comparison
NVIDIA Gainward Phantom+ GeForce RTX 3080 and AMD Sapphire Nitro+ Radeon RX 6800 XT separate most on vram: NVIDIA Gainward Phantom+ GeForce RTX 3080 at 10 GB, AMD Sapphire Nitro+ Radeon RX 6800 XT at 16 GB, 38% in favour of AMD Sapphire Nitro+ Radeon RX 6800 XT. Boost Clock splits them by another 25%, again favouring AMD Sapphire Nitro+ Radeon RX 6800 XT. They match on tier, ray tracing support and slot width. In Blender Cycles (GPU) the NVIDIA Gainward Phantom+ GeForce RTX 3080 scores 4,529 against 2,406 for the AMD Sapphire Nitro+ Radeon RX 6800 XT, a lead of 47%.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | NVIDIA | AMD |
| Series | GeForce RTX 30 | Radeon RX 6000 |
| Board Partner | Gainward | Sapphire |
| VRAM | 10 GB-37% | 16 GB |
| Tier | High-End | High-End |
| Memory Type | GDDR6X | GDDR6 |
| Boost Clock | 1740 MHz-25% | 2310 MHz |
| Ray Tracing Support | true | true |
| TDP | 320 W-7% | 300 W |
| Architecture | Ampere (GA102) | RDNA 2 (Navi 21) |
| Card Length | 305 mm-7% | 286 mm |
| Slot Width | 2.5 | 2.5 |
| MSRP | 699 | 649 |
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
NVIDIA Gainward Phantom+ GeForce RTX 3080
8 / 10 Expert Rating
A solid high-end pick if its price and 10GB VRAM allocation match your target resolution.
AMD Sapphire Nitro+ Radeon RX 6800 XT
8 / 10 Expert Rating
A solid high-end pick if its price and 16GB VRAM allocation match your target resolution.
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