Swiss Ai.Apertus 8B Instruct 2509 GGUF — Hardware Requirements & GPU Compatibility
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341 downloads
3 likesSpecifications
- Publisher
- DevQuasar
- Parameters
- 8B
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How Much VRAM Does Swiss Ai.Apertus 8B Instruct 2509 GGUF Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 17.6 GB | — | 16.00 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run Swiss Ai.Apertus 8B Instruct 2509 GGUF?
BF16 · 17.6 GBSwiss Ai.Apertus 8B Instruct 2509 GGUF (BF16) requires 17.6 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 23+ GB is recommended. 6 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.
Runs great
— Plenty of headroom
Which Devices Can Run Swiss Ai.Apertus 8B Instruct 2509 GGUF?
BF16 · 17.6 GB21 devices with unified memory can run Swiss Ai.Apertus 8B Instruct 2509 GGUF, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Mini M4 Pro (24 GB).
Runs great
— Plenty of headroomRelated Models
Frequently Asked Questions
- How much VRAM does Swiss Ai.Apertus 8B Instruct 2509 GGUF need?
Swiss Ai.Apertus 8B Instruct 2509 GGUF requires 17.6 GB of VRAM at BF16.
VRAM = Weights + KV Cache + Overhead
Weights = 8B × 16 bits ÷ 8 = 16 GB
KV Cache + Overhead ≈ 1.6 GB (at 2K context + ~0.3 GB framework)
VRAM usage by quantization
BF1617.6 GB- Can I run Swiss Ai.Apertus 8B Instruct 2509 GGUF on a Mac?
Swiss Ai.Apertus 8B Instruct 2509 GGUF requires at least 17.6 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 Swiss Ai.Apertus 8B Instruct 2509 GGUF locally?
Yes — Swiss Ai.Apertus 8B Instruct 2509 GGUF can run locally on consumer hardware. At BF16 quantization it needs 17.6 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Swiss Ai.Apertus 8B Instruct 2509 GGUF?
At BF16, Swiss Ai.Apertus 8B Instruct 2509 GGUF can reach ~166 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~37 tok/s. 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 ÷ 17.6 × 0.55 = ~166 tok/s
Estimated speed at BF16 (17.6 GB)
AMD Instinct MI300X~166 tok/sNVIDIA GeForce RTX 4090~37 tok/sNVIDIA H100 SXM~124 tok/sAMD Instinct MI250X~102 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Swiss Ai.Apertus 8B Instruct 2509 GGUF?
At BF16, the download is about 16.00 GB.
- Which GPUs can run Swiss Ai.Apertus 8B Instruct 2509 GGUF?
6 consumer GPUs can run Swiss Ai.Apertus 8B Instruct 2509 GGUF at BF16 (17.6 GB). Top options include NVIDIA GeForce RTX 5090, AMD Radeon RX 7900 XT, AMD Radeon RX 7900 XTX. 1 GPU have plenty of headroom for comfortable inference.
- Which devices can run Swiss Ai.Apertus 8B Instruct 2509 GGUF?
21 devices with unified memory can run Swiss Ai.Apertus 8B Instruct 2509 GGUF at BF16 (17.6 GB), including Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB), Mac Pro M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.