Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 — Hardware Requirements & GPU Compatibility
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152 downloads
3 likesSpecifications
- Publisher
- McG-221
- Parameters
- 26.9B
- Architecture
- Qwen3_5ForConditionalGeneration
- Context Length
- 262,144 tokens
- Vocabulary Size
- 248,320
- Release Date
- 2026-03-06
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How Much VRAM Does Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 54.5 GB | 111.4 GB | 53.79 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
BF16 · 54.5 GBQ3.5 BlueStar 27B Ultra Heretic MLX Gs32 (BF16) requires 54.5 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 71+ GB is recommended. Using the full 262K context window can add up to 56.8 GB, bringing total usage to 111.4 GB. No single GPU has enough memory — multi-GPU or cluster setups are needed.
Which Devices Can Run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
BF16 · 54.5 GB8 devices with unified memory can run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Studio M4 Max (64 GB).
Runs great
— Plenty of headroom
Decent
— Enough memory, may be tightRelated Models
Frequently Asked Questions
- How much VRAM does Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 need?
Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 requires 54.5 GB of VRAM at BF16. Full 262K context adds up to 56.8 GB (111.4 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 26.9B × 16 bits ÷ 8 = 53.8 GB
KV Cache + Overhead ≈ 0.7 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 57.6 GB (at full 262K context)
VRAM usage by quantization
BF1654.5 GBBF16 + full context111.4 GB- Can NVIDIA GeForce RTX 5090 run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
No — Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 requires at least 54.5 GB at BF16, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.
- Can I run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 on a Mac?
Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 requires at least 54.5 GB at BF16, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.
- Can I run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 locally?
Yes — Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 can run locally on consumer hardware. At BF16 quantization it needs 54.5 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
At BF16, Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 can reach ~53 tok/s on AMD Instinct MI300X. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = (bandwidth GB/s ÷ model GB) × efficiency
Example: AMD Instinct MI300X → 5300 ÷ 54.5 × 0.55 = ~53 tok/s
Estimated speed at BF16 (54.5 GB)
AMD Instinct MI300X~53 tok/sNVIDIA H100 SXM~40 tok/sAMD Instinct MI250X~33 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
At BF16, the download is about 53.79 GB.
- Which GPUs can run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
No single consumer GPU has enough VRAM to run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 at BF16 (54.5 GB). Multi-GPU or professional hardware is required.
- Which devices can run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32?
8 devices with unified memory can run Q3.5 BlueStar 27B Ultra Heretic MLX Gs32 at BF16 (54.5 GB), including Mac Pro M2 Ultra (192 GB), Mac Studio M2 Ultra (192 GB), Mac Studio M4 Max (128 GB), Mac Studio M4 Max (64 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.