llamaperf

AMD Radeon 890M vs NVIDIA RTX 3090 for local LLMs

1 report on the AMD Radeon 890M and 176 on the NVIDIA RTX 3090

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. The estimates below compare them on the models people run most.

AMD Radeon 890M
Memory
shared memory unified
Memory bandwidth
not on record
FP16 compute
not on record
Reports
1
NVIDIA RTX 3090
Memory
24GB
Memory bandwidth
936 GB/s
FP16 compute
142 TFLOPS
Reports
176

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.

ModelAMD Radeon 890MNVIDIA RTX 3090
Qwen3.8 27Bnot in the calculator yet33.9 t/sQ4_K_M
Qwen3.8 125B · 6B activenot in the calculator yet19.4 t/sQ2_K, experts in RAM
DeepSeek V4 Flash 284B · 13B activenot in the calculator yetdoesn't fit at these settings
Qwen3.6 35B · 3B activenot in the calculator yet120.1 t/sQ4_K_S
Qwen3.6 27Bnot in the calculator yet33.9 t/sQ4_K_M
Gemma 4 26B · 4B activenot in the calculator yet76.4 t/sQ5_K_S

Change the context, RAM or model in the calculator: AMD Radeon 890M · NVIDIA RTX 3090

Every report on each card, with its source: AMD Radeon 890M · NVIDIA RTX 3090

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