Will It Run AI

Can Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored run on AMD Instinct MI250X 128GB?

YES — Runs Great

C50Usable
Estimated from fit model

Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored needs ~48.6 GB VRAM. AMD Instinct MI250X 128GB has 128.0 GB. With Q4_K_M quantization, expect ~85 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) — 48.6 GB, 85.2 tok/s, Runs well
48.6 GB required128.0 GB available
38% VRAM used

Fit status

Runs well

Decode

85.2 tok/s

TTFT

2271 ms

Safe context

242K

Memory

48.6 GB / 128.0 GB

Memory breakdown

Weights29.3 GB
KV Cache5.6 GB
Runtime0.9 GB
Headroom12.8 GB

See how fast it feels

See how fast it feelsQwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored on AMD Instinct MI250X 128GB
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: 85.2 tok/s decode · 2.3s TTFT (warm) · 213 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well85.2 tok/s1239 ms242K
CodingCRuns well85.2 tok/s2271 ms242K
Agentic CodingCRuns well85.2 tok/s3303 ms242K
ReasoningCRuns well85.2 tok/s2684 ms242K
RAGCRuns well85.2 tok/s4129 ms242K

Quantization options

How Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored (48B params) fits at each quantization level on AMD Instinct MI250X 128GB (128.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
18.7 GB
LowD39
Q3_K_S
3
23.5 GB
LowD39
NVFP4
4
26.9 GB
MediumD40
Q4_K_M
4
29.3 GB
MediumC40
Q5_K_M
5
34.6 GB
HighC41
Q6_K
6
39.4 GB
HighC42
Q8_0
8
51.4 GB
Very HighC44
F16Best for your GPU
16
98.4 GB
MaximumC48

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

Frequently asked questions

Can AMD Instinct MI250X 128GB run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored?

Yes, AMD Instinct MI250X 128GB can run Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored with a C grade (Runs well). Expected decode speed: 85.2 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 48.6 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 AMD Instinct MI250X 128GB?

On AMD Instinct MI250X 128GB, Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored achieves approximately 85.2 tokens per second decode speed with a time-to-first-token of 2271ms using Q4_K_M quantization.

Can AMD Instinct MI250X 128GB 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 AMD Instinct MI250X 128GB receives a C grade with 85.2 tok/s and 242K context.

What context window can Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored use on AMD Instinct MI250X 128GB?

On AMD Instinct MI250X 128GB, Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored can safely use up to 242K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for AMD Instinct MI250X 128GBSee all hardware for Qwen3 48B A4B Savant Commander Distill 12X Closed Open Heretic Uncensored
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