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NVIDIA RTX 4090 vs NVIDIA Tesla P100 16GB for local LLMs

35 reports on the NVIDIA RTX 4090 and 8 on the NVIDIA Tesla P100 16GB

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 38% higher on the NVIDIA RTX 4090 (1,008 GB/s on the NVIDIA RTX 4090, 732 on the NVIDIA Tesla P100 16GB). The estimates below compare them on the models people run most.

NVIDIA RTX 4090
Memory
24GB
Memory bandwidth
1,008 GB/s
FP16 compute
330 TFLOPS
Reports
35
NVIDIA Tesla P100 16GB
Memory
16GB
Memory bandwidth
732 GB/s
FP16 compute
19 TFLOPS
Reports
8

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 4090NVIDIA Tesla P100 16GB
Qwen3.8 27B36.5 t/sQ4_K_M47.7 t/sQ2_K
Qwen3.8 125B · 6B active19.6 t/sQ2_K, experts in RAMdoesn't fit at these settings
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active129.3 t/sQ4_K_S157.9 t/sQ2_K
Qwen3.6 27B36.5 t/sQ4_K_M47.7 t/sQ2_K
Gemma 4 26B · 4B active82.3 t/sQ5_K_S106.4 t/sQ3_K_S

Change the context, RAM or model in the calculator: NVIDIA RTX 4090 · NVIDIA Tesla P100 16GB

Every report on each card, with its source: NVIDIA RTX 4090 · NVIDIA Tesla P100 16GB

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