Can I Run GPT-OSS on AMD Ryzen AI Max+ 395?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 15 sierpnia 2026

Yes, comfortably — you'll have ~25.5 GB of headroom running GPT-oss 120B at Q4_K_M (70.518 GB, ~42 tok/s (est.)) with room for up to 128K context.

Buy This HardwareRyzen AI Max+ 395 Laptop (Strix Halo, up to 128GB) — 96 GB VRAM · 120 W board powerDeploy in the Cloud NowNVIDIA A100 80GB on RunPod — from $1.39/hr · rate checked 2026-07

or compare on Vast.ai from $0.77/hr (typical low · varies)

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Ryzen AI Max+ 395 Laptop (Strix Halo, up to 128GB)
96 GB VRAM · 120 W board power
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AMD Ryzen AI Max+ 395 Specs

VRAM96 GB
Memory Bandwidth256 GB/s

GPT-oss 120B on the AMD Ryzen AI Max+ 395: VRAM by quantization

QuantVRAM neededFits 96 GB?Max context
F16234.7 GB✗ No
Q8_0125.2 GB✗ No
Q6_K96.9 GB✗ No
Q5_K_M83.9 GB✓ Yes128K
Q4_K_M71.6 GB✓ Yes128K
Q3_K_M50.9 GB✓ Yes128K
Q2_K39.5 GB✓ Yes128K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 96 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

GPT-OSS Sizes That Fit the AMD Ryzen AI Max+ 395

GPT-oss 120BQ4_K_M · 70.518 GB · ~42 tok/s (est.)
GPT-OSS 20BMXFP4 · 11.103124999999999 GB · ~62 tok/s (est.)
Buy vs. rent GPT-OSS
Buy the GPU
~$1,999
AMD Ryzen AI Max+ 395 · MSRP
Rent by the hour
from $0.77/hr
A100 (80 GB) class

At 2 hrs/day, buying (~$1,999) beats renting at $0.77/hr after about 3.6 years.

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Vast.ai $0.77/hr · typical low · varies
Rent on Vast.ai →
RunPod $1.39/hr
Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Is the AMD Ryzen AI Max+ 395 enough to run GPT-OSS locally?

Yes, comfortably — you'll have ~25.5 GB of headroom running GPT-oss 120B at Q4_K_M (70.518 GB, ~42 tok/s (est.)) with room for up to 128K context.

What's the best GPT-OSS size for the AMD Ryzen AI Max+ 395?

GPT-oss 120B at Q4_K_M quantization (70.518 GB), estimated ~42 tokens/sec, up to 128K context.

Every GPT-OSS size on the AMD Ryzen AI Max+ 395

SizeVRAMVerdictSpeed
GPT-oss 120B70.5 GBRuns~42 tok/s
GPT-OSS 20B11.1 GBRuns~62 tok/s

GPT-OSS on Other GPUs

Popular Models on the AMD Ryzen AI Max+ 395

VRAM Tier

Troubleshooting

Buying Guide

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