Apple silicon
Apple Mac Studio (M5 Ultra)
- Memory
- 512 GB
- Bandwidth
- 1.2 TB/s
Largest popular model at 4-bit: Qwen3.5 397B A17B
Up to 512 GB at 1.2 TB/s: the only single box that holds DeepSeek R1 or Qwen3.5 397B at 4-bit.
AMD · Ryzen AI · 2026
Strix Halo's successor with up to 192 GB (160 GB for the GPU): Qwen3 235B in a mini PC.
from $7,399 (typical price)
Researched from manufacturer data and public sources; not tested by us.· Last reviewed Oct 11, 2026
Popular models at Q4_K_M with a 32K-token context. Memory needed from real model files; speed is the theoretical ceiling.
Model weightsContext cache (KV)RuntimeUsable limit (colour = verdict)
| Model | Verdict | Memory | Speed ceiling |
|---|---|---|---|
| Qwen3 1.7B | Runs | ≤ 246 tok/s | |
| Qwen3.5 9B | Runs | ≤ 48 tok/s | |
| Gemma 4 12B | Runs | ≤ 38 tok/s | |
| gpt-oss-20b | Runs | ≤ 136 tok/s | |
| Qwen3.6 27B | Runs | ≤ 16 tok/s | |
| Qwen3.6 35B A3B | Runs | ≤ 148 tok/s | |
| Llama 3.3 70B | Runs | ≤ 6 tok/s | |
| gpt-oss-120b | Runs | ≤ 100 tok/s | |
| Qwen3.5 122B A10B | Runs | ≤ 45 tok/s | |
| Qwen3.5 397B A17B | Not enough memory | — |
Theoretical maximum for generating text: memory bandwidth divided by the bytes read per token. Real runs usually reach about half to three quarters of it.
Prices are editorial references (launch price and a typical street price on the date shown), not live prices. In 2026 the memory shortage has pushed many prices well above launch.
Prices are shown only if updated in the last 24 hours and may change; the retailer’s price at checkout applies. We may earn a commission from these links at no cost to you. Affiliate disclosure
Best for: Very large MoE models in an x86 mini PC, for those willing to pay early-adopter prices.
Wait for prices to settle unless you need more than 128 GB in x86 today.
AMD allows up to 160 GB of the 192 GB to be used as graphics memory.
Source: Manufacturer specifications
How well the popular local-AI tools run on it today (editorial assessment).
Measured results with their source. We never invent speeds.
No measured results yet. The table above shows the theoretical ceiling instead.
Apple silicon
Largest popular model at 4-bit: Qwen3.5 397B A17B
Up to 512 GB at 1.2 TB/s: the only single box that holds DeepSeek R1 or Qwen3.5 397B at 4-bit.

DGX Spark / GB10
Largest popular model at 4-bit: Qwen3.5 122B A10B
128 GB with CUDA in a tiny box: the NVIDIA answer to Strix Halo and the Mac.
NVIDIA GPUs
Largest popular model at 4-bit: Qwen3.5 122B A10B
96 GB on one card at RTX 5090 speed: gpt-oss-120b and 122B MoE models entirely in GPU memory.