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NVIDIA Gigabyte Gaming OC GeForce RTX 5080 vs NVIDIA GeForce RTX 3080 12 GB: Comparison
NVIDIA Gigabyte Gaming OC GeForce RTX 5080 and NVIDIA GeForce RTX 3080 12 GB separate most on recommended psu: NVIDIA Gigabyte Gaming OC GeForce RTX 5080 at 850 W, NVIDIA GeForce RTX 3080 12 GB at 600 W, 42% in favour of NVIDIA GeForce RTX 3080 12 GB. Boost Clock splits them by another 37%, this time favouring NVIDIA Gigabyte Gaming OC GeForce RTX 5080. They match on gpu brand and msrp. In Blender Cycles (GPU) the NVIDIA Gigabyte Gaming OC GeForce RTX 5080 scores 9,138 against 4,529 for the NVIDIA GeForce RTX 3080 12 GB, a lead of 50%.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | NVIDIA | NVIDIA |
| Series | GeForce RTX 50 | GeForce RTX 30 |
| Board Partner | Gigabyte | NVIDIA Founders Edition, ASUS, MSI, Gigabyte, Zotac, EVGA (legacy) |
| VRAM | 16 GB | 12 GB-25% |
| Tier | High End | High-End |
| Memory Type | GDDR7 | GDDR6X |
| Boost Clock | 2730 MHz | 1710 MHz-37% |
| Ray Tracing Support | Yes | true |
| Architecture | Blackwell | Ampere |
| Card Length | 340 mm-9% | 313 mm |
| Memory Bus Width | 256 bit-33% | 384 bit |
| Memory Bandwidth | 960 GB/s | 912 GB/s-5% |
| Recommended PSU | 850 W-42% | 600 W |
| Power Connector | 1x 12V-2x6 | 2x 8-pin |
| MSRP | 999 | 999 |
| CUDA Cores | 10752 | 8960 |
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 Gigabyte Gaming OC GeForce RTX 5080
8 / 10 Expert Rating
A solid high-end pick if its price and 16GB VRAM allocation match your target resolution.
NVIDIA GeForce RTX 3080 12 GB
8.2 / 10 Expert Rating
A genuinely better RTX 3080 - the extra VRAM and bandwidth make it the version to look for on the secondhand market over the original 10GB card.
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