llamaperf

NVIDIA RTX 5080 vs NVIDIA V100 32GB for local LLMs

26 reports on the NVIDIA RTX 5080 and 27 on the NVIDIA V100 32GB

Which is faster for local LLMs?

Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. Memory bandwidth, which caps how fast a card can write, is 7% higher on the NVIDIA RTX 5080 (960 GB/s on the NVIDIA RTX 5080, 900 on the NVIDIA V100 32GB). The estimates below compare them on the models people run most.

NVIDIA RTX 5080
Memory
16GB
Memory bandwidth
960 GB/s
FP16 compute
225 TFLOPS
Reports
26
NVIDIA V100 32GB
Memory
32GB
Memory bandwidth
900 GB/s
FP16 compute
125 TFLOPS
Reports
27

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.

ModelNVIDIA RTX 5080NVIDIA V100 32GB
Qwen3.8 27B62.6 t/sQ2_K22.6 t/sQ6_K
Qwen3.8 125B · 6B activedoesn't fit at these settings19.4 t/sQ2_K, experts in RAM
Qwen3.6 35B · 3B active207.0 t/sQ2_K81.9 t/sQ5_K_M
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B62.6 t/sQ2_K22.6 t/sQ6_K
Gemma 4 26B · 4B active139.6 t/sQ3_K_S57.5 t/sQ6_K

Change the context, RAM or model in the calculator: NVIDIA RTX 5080 · NVIDIA V100 32GB

Every report on each card, with its source: NVIDIA RTX 5080 · NVIDIA V100 32GB

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