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llm-speed

RTX 5090 vs RTX 5080

Signed, community-submitted decode tok/s, prefill, and TTFT for RTX 5090 vs RTX 5080 — every number links to the run it came from.

Verdict

RTX 5080 has no submitted run yet, so there is no head-to-head number to report. We do have 9 models measured for RTX 5090 (peak 309 tok/s decode on DeepSeek-Coder-V2-Lite-Instruct) — the table below is that baseline. Run the llm-speed suite on RTX 5080 and this page fills in the second column automatically.

hardware
RTX 5090
NVIDIA Ada/Blackwell · 32 GB VRAM
View RTX 5090 page →
hardware
RTX 5080
NVIDIA Ada/Blackwell · 16 GB VRAM
View RTX 5080 page →

RTX 5090 benchmarks — no shared model with RTX 5080 yet

See also: RTX 5090 benchmarks · RTX 5080 benchmarks · All hardware · All models · Methodology