Will It Run AI

Can Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored run on Mac Studio M3 Ultra 256GB?

YES — Runs Great

C44Usable
Estimated from fit model

Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored needs ~63.5 GB VRAM. Mac Studio M3 Ultra 256GB has 184.3 GB. With Q4_K_M quantization, expect ~19 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced
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Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) 63.5 GB, 19.0 tok/s, Runs well
63.5 GB required184.3 GB available
34% VRAM used

Fit status

Runs well

Decode

19.0 tok/s

TTFT

10178 ms

Safe context

360K

Memory

63.5 GB / 184.3 GB

Memory breakdown

Weights29.3 GB
KV Cache5.6 GB
Runtime0.9 GB
Headroom27.6 GB

See how fast it feels

See how fast it feelsQwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored on Mac Studio M3 Ultra 256GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step. Given information: - Speed = 60 mph (miles per hour) - Time = 2.5 hours Formula: Distance = Speed x Time Calculation: Distance = 60 mph x 2.5 h = 150 miles The train travels 150 miles. Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time. Breakdown: - First half: 1.25 hours at 60 mph = 75 miles - Stop: 20 minutes (no distance) - Second half: 1.25 hours at 60 mph = 75 miles Total distance: 150 miles (same) Total time: 2.5 h + 0.33 h = 2.83 hours Average speed: 150 / 2.83 = 53 mph The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 19.0 tok/s decode · 10.2s TTFT (warm) · 48 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Shared-memory contention still exists

The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.

Best improvement path

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well19.0 tok/s5552 ms360K
CodingCRuns well19.0 tok/s10178 ms360K
Agentic CodingCRuns well19.0 tok/s14805 ms360K
ReasoningCRuns well19.0 tok/s12029 ms360K
RAGCRuns well19.0 tok/s18506 ms360K

Quantization options

How Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored (48B params) fits at each quantization level on Mac Studio M3 Ultra 256GB (184.3 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
18.7 GB
LowD37
Q3_K_S
3
23.5 GB
LowD38
NVFP4
4
26.9 GB
MediumD38
Q4_K_M
4
29.3 GB
MediumD39
Q5_K_M
5
34.6 GB
HighD39
Q6_K
6
39.4 GB
HighD40
Q8_0
8
51.4 GB
Very HighC41
F16Best for your GPU
16
98.4 GB
MaximumC47

Get started

Copy-paste commands to run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored on your machine.

Run

lms load hf-davidau--qwen3-48b-a4b-savant-commander-distill-12x-closed-open-heretic-uncensored-gguf && lms server start

升级选项

能流畅运行 Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored 的硬件

Frequently asked questions

Can Mac Studio M3 Ultra 256GB run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored?

Yes, Mac Studio M3 Ultra 256GB can run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored with a C grade (Runs well). Expected decode speed: 19.0 tok/s.

How much VRAM does Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored need?

Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored (48B parameters) requires approximately 63.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored?

The recommended quantization for Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored run at on Mac Studio M3 Ultra 256GB?

On Mac Studio M3 Ultra 256GB, Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored achieves approximately 19.0 tokens per second decode speed with a time-to-first-token of 10178ms using Q4_K_M quantization.

Can Mac Studio M3 Ultra 256GB run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored for coding?

For coding workloads, Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored on Mac Studio M3 Ultra 256GB receives a C grade with 19.0 tok/s and 360K context.

What context window can Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored use on Mac Studio M3 Ultra 256GB?

On Mac Studio M3 Ultra 256GB, Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored can safely use up to 360K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

Is unified memory on Mac Studio M3 Ultra 256GB as fast as VRAM for Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored?

Not always. Mac Studio M3 Ultra 256GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.

See all results for Mac Studio M3 Ultra 256GBSee all hardware for Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored
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