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AMD Ryzen AI Max+ 395 (Strix Halo,): 128 GB, what it runs and what it costs

Specs checked · Aliteq Team · How we compute this

The short answer

The AMD Ryzen AI Max+ 395 (Strix Halo, 128 GB) has 128 GB of VRAM and 256 GB/s of memory bandwidth (2025). At Q4_K_M quality or better with an 8K context it runs 41 of the open models we track; the largest that fits with room to spare is Llama 4 Scout 17B-16E (MoE). We don't see it for rent on the providers we track right now.

VRAM
128 GB
Bandwidth
256 GB/s
Board power
55 W
Launched
2025

Source: AMD specification · bandwidth not yet confirmed by a second source, so we don't estimate speed from it

Buy it or rent it

Not for rent on the providers we track right now. See every card that is.

Which AI models run on the AMD Ryzen AI Max+ 395 (Strix Halo,)

Computed by our VRAM engine for an 8K context: the best quality each model fits at in 128 GB. Speeds are upper-bound estimates from memory bandwidth, not benchmarks.

ModelBest fitVRAM used~tok/s
Qwen3.8-Flash-Next (MoE)Q5_K_M120 GB94% · tight—
Qwen3.5 122B-A10B (MoE)Q8_0125 GB97% · tight—
NVIDIA Nemotron 3 Super 120B-A12B (MoE)Q8_0123 GB96% · tight—
gpt-oss 120B (MoE)Q8_0117 GB91% · tight—
Llama 4 Scout 17B-16E (MoE)Q8_0109 GB85%—
GLM-4.5-Air (MoE)Q8_0107 GB84%—
Qwen3-Next 80B-A3B (MoE)Q8_080 GB63%—
Qwen3-Coder-Next 80B-A3B (MoE)Q8_080 GB62%—
DeepSeek R1 Distill 70BQ8_073 GB57%—
Mixtral 8x7B (MoE)F1689 GB69%—
Qwen3.6 35B-A3B (MoE)F1668 GB53%—
Ornith-1.5 35B-A3B (MoE)F1668 GB53%—

Fits only below Q4 quality: Qwen3 235B-A22B (MoE) (Q4_0), MiniMax-M2.5 (MoE) (Q4_0).

Too big for 128 GB (rent a bigger card instead): what it costs to run MiniMax-M3 (MoE), what it costs to run GLM-5.3 (MoE), what it costs to run DeepSeek V4.1 Flash (MoE), what it costs to run DeepSeek V4 Pro (MoE).

Check a model and context of your own in the VRAM calculator.

Our guides on the AMD Ryzen AI Max+ 395 (Strix Halo,)

Cards to compare it with

Every card by VRAM tier: all GPUs for gaming and local AI.

AMD Ryzen AI Max+ 395 (Strix Halo,): common questions

How much VRAM does the AMD Ryzen AI Max+ 395 (Strix Halo,) have?
128 GB, with 256 GB/s of memory bandwidth, per the maker's specification.
What is the biggest AI model the AMD Ryzen AI Max+ 395 (Strix Halo,) can run?
Of the open models we track, Llama 4 Scout 17B-16E (MoE) is the largest that fits at Q4_K_M or better with an 8K context and room to spare (about 109 GB of 128 GB). Qwen3.8-Flash-Next (MoE) also squeezes in, but with almost no memory left for longer context. Bigger models only fit at lower-quality quants or need more memory.
Can I rent an AMD Ryzen AI Max+ 395 (Strix Halo,) in the cloud?
We don't see it on Vast.ai, Runpod or the other providers we track right now. The cloud GPU table lists every card that is for rent.
Is 128 GB enough?
Datacenter GPUs and unified-memory machines; mostly rented by the hour.