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AMD Radeon RX 6800 vs NVIDIA Gainward Phantom GS GeForce RTX 5080: Comparison

AMD Radeon RX 6800 and NVIDIA Gainward Phantom GS GeForce RTX 5080 separate most on slot width: AMD Radeon RX 6800 at 2, NVIDIA Gainward Phantom GS GeForce RTX 5080 at 3, 50% in favour of AMD Radeon RX 6800. TDP splits them by another 44%, again favouring AMD Radeon RX 6800. In Blender Cycles (GPU) the NVIDIA Gainward Phantom GS GeForce RTX 5080 scores 9,138 against 1,872 for the AMD Radeon RX 6800, a lead of 80%.

Specs

Specification
AMD Radeon RX 6800
AMD Radeon RX 6800
Gainward Phantom GS GeForce RTX 5080
NVIDIA Gainward Phantom GS GeForce RTX 5080
GPU BrandAMDNVIDIA
SeriesRadeon RX 6000GeForce RTX 50
Board PartnerReferenceGainward
VRAM16 GB16 GB
TierHigh EndHigh-End
Memory TypeGDDR6GDDR7
Boost Clock2105 MHz-20%2640 MHz
Ray Tracing SupportYestrue
TDP250 W360 W-44%
ArchitectureRDNA 2Blackwell (GB203)
Card Length267 mm336 mm-26%
Slot Width23-50%
MSRP579999

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.

AMD Radeon RX 68001,872n=36-80%
NVIDIA Gainward Phantom GS GeForce RTX 50809,138n=1,429Best

Verdict

AMD Radeon RX 6800

8 / 10 Expert Rating

A solid high-end pick if its price and 16GB VRAM allocation match your target resolution.

NVIDIA Gainward Phantom GS GeForce RTX 5080

8 / 10 Expert Rating

A capable high-end 5080 continuing Gainward's Phantom cooling line, best suited to buyers in the European and Asian markets where Gainward is well distributed.

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