Cohere on AMD Strix Halo

Can I run Command R 35B on an Ryzen AI Max+ 395 128GB?

Yes. Command R 35B at Q4_K_M uses 30.7 GB of the 96.0 GB available on a Ryzen AI Max+ 395 128GB, and runs at about 5.36 tokens per second. You can push the context to 60K.

Runs comfortably

30.7 GB of 96.0 GB · 32%
096 GB
Weights 20.1 GB
KV cache 10.0 GB
Runtime overhead 0.6 GB

Command R 35B at Q4_K_M leaves 65.3 GB spare on a Ryzen AI Max+ 395 128GB. There is room to raise the context length or move up a quantisation level.

Generation5.36tok/s
Prompt processing300tok/s
Max context60Ktokens
KV per 1K tokens0GB

Every quantisation of Command R 35B on a Ryzen AI Max+ 395 128GB

Highlighted row is the highest quality that still fits at 8K context.

QuantisationbpwWeights TotalVerdictMax ctxtok/s
FP16 / BF16 16.00 65.2 GB 75.7 GB Runs comfortably 24K 1.92
INT8 / W8A8 8.50 33.7 GB 44.3 GB Runs comfortably 49K 3.47
Q8_0 (GGUF) 8.50 33.7 GB 44.3 GB Runs comfortably 49K 3.47
FP8 (E4M3) 8.00 32.6 GB 43.2 GB Runs comfortably 50K 3.58
Q6_K 6.56 26.7 GB 37.3 GB Runs comfortably 55K 4.24
Q5_K_M 5.67 23.1 GB 33.7 GB Runs comfortably 58K 4.78
AWQ 4-bit 4.25 23.0 GB 33.6 GB Runs comfortably 58K 4.79
GPTQ 4-bit 4.25 23.0 GB 33.6 GB Runs comfortably 58K 4.79
MXFP4 4.25 23.0 GB 33.6 GB Runs comfortably 58K 4.79
Q5_K_S 5.52 22.5 GB 33.1 GB Runs comfortably 58K 4.89
Q4_K_M 4.85 20.1 GB 30.7 GB Runs comfortably 60K 5.36
Q4_K_S 4.58 19.1 GB 29.7 GB Runs comfortably 61K 5.57
Q4_0 4.55 19.0 GB 29.6 GB Runs comfortably 61K 5.60
IQ4_XS 4.25 17.9 GB 28.5 GB Runs comfortably 62K 5.86
Q3_K_M 3.91 16.7 GB 27.3 GB Runs comfortably 63K 6.19
IQ3_M 3.70 15.9 GB 26.5 GB Runs comfortably 64K 6.41
IQ3_XXS 3.06 13.7 GB 24.2 GB Runs comfortably 65K 7.20
Q2_K 2.63 12.1 GB 22.7 GB Runs comfortably 67K 7.84
IQ2_XXS 2.06 10.1 GB 20.7 GB Runs comfortably 68K 8.90
IQ1_M 1.75 9.0 GB 19.5 GB Runs comfortably 69K 9.61

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