llamaperf

AMD RX 6700 XT vs NVIDIA Tesla P100 16GB for local LLMs

5 reports on the AMD RX 6700 XT and 15 on the NVIDIA Tesla P100 16GB

Which is faster for local LLMs?

On Qwen3.8 27B at 3-bit, the AMD RX 6700 XT has 10.0 generation tokens/s (one run); the NVIDIA Tesla P100 16GB has 10.0 generation tokens/s (one run). Memory bandwidth, which caps how fast a card can write, is 1.9x higher on the NVIDIA Tesla P100 16GB (384 GB/s on the AMD RX 6700 XT, 732 on the NVIDIA Tesla P100 16GB).

AMD RX 6700 XT
Memory
12GB
Memory bandwidth
384 GB/s
FP16 compute
26.4 TFLOPS
Reports
5
NVIDIA Tesla P100 16GB
Memory
16GB
Memory bandwidth
732 GB/s
FP16 compute
19 TFLOPS
Reports
15

Measured on both

Generation and prompt processing speeds from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same bit class. Each side shows the engines and reported context behind its median. Context can mean a configured window or prompt depth, so these are community comparisons with differing settings. How to read these

ModelAMD RX 6700 XTNVIDIA Tesla P100 16GB
Qwen3.8 27B3-bit10.0one runengine not statedcontext not stated10.0one runengine not statedcontext not stated

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. Where a model was also measured above, the measurement wins.

ModelAMD RX 6700 XTNVIDIA Tesla P100 16GB
Qwen3.8 27B1.6 t/sQ8_0, layers on CPU47.7 t/sQ2_K
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active13.3 t/sQ6_K, experts in RAM157.9 t/sQ2_K
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B1.6 t/sQ8_0, layers on CPU47.7 t/sQ2_K
Gemma 4 26B · 4B active62.7 t/sQ2_K106.4 t/sQ3_K_S
DeepSeek V4.1 Flash 552B · 16B activedoesn't fit at these settingsdoesn't fit at these settings

Change the context, RAM or model in the calculator: AMD RX 6700 XT · NVIDIA Tesla P100 16GB

Every report on each card, with its source: AMD RX 6700 XT · NVIDIA Tesla P100 16GB

More comparisons