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AI Gear Watch

Apple Mac Studio (M3 Ultra, 512GB)

$7,300

$14 per GB of memory

0.11 GB/s per dollar

In stock at last check

Specs

Memory
512 GB
Memory bandwidth
819 GB/s
FP16 compute
Not published
INT8 compute
Not published
Power
270 W
MSRP
Not published
Memory architecture
Unified with the CPU

Fields marked "not published" are ones the vendor does not state. We leave them blank rather than estimate.

What it can run

Whether a model's weights fit in 512 GB, with a 20 percent allowance for the KV cache, activations, and the runtime. This is arithmetic on the quantization format, not a benchmark. Long contexts and large batches need more.

Model Q4 (4-bit) ? Q5 (5-bit) Q8 (8-bit) FP16
Qwen3-8B (8.2B) Fits Fits Fits Fits
gpt-oss-20b (21B) Fits Fits Fits Fits
Mistral Small 3.2 24B (24B) Fits Fits Fits Fits
Gemma 3 27B (27B) Fits Fits Fits Fits
Llama 3.3 70B Instruct (70B) Fits Fits Fits Fits
gpt-oss-120b (117B) Fits Fits Fits Fits
Qwen3-235B-A22B (235B) Fits Fits Fits No
DeepSeek-V3 (671B) Fits Fits No No
Kimi K3 (2800B) No No No No

Sources