UIGEN X 8B — Hardware Requirements & GPU Compatibility
ChatReasoningSpecifications
- Publisher
- Tesslate
- Parameters
- 8.2B
- Architecture
- Qwen3ForCausalLM
- Context Length
- 40,960 tokens
- Vocabulary Size
- 151,936
- Release Date
- 2025-07-18
- License
- Apache 2.0
Get Started
HuggingFace
How Much VRAM Does UIGEN X 8B Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 17.0 GB | 22.7 GB | 16.38 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run UIGEN X 8B?
BF16 · 17.0 GBUIGEN X 8B (BF16) requires 17.0 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 23+ GB is recommended. Using the full 41K context window can add up to 5.7 GB, bringing total usage to 22.7 GB. 6 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.
Runs great
— Plenty of headroomWhich Devices Can Run UIGEN X 8B?
BF16 · 17.0 GB21 devices with unified memory can run UIGEN X 8B, 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 UIGEN X 8B need?
UIGEN X 8B requires 17.0 GB of VRAM at BF16. Full 41K context adds up to 5.7 GB (22.7 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 8.2B × 16 bits ÷ 8 = 16.4 GB
KV Cache + Overhead ≈ 0.6 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 6.3 GB (at full 41K context)
VRAM usage by quantization
BF1617.0 GBBF16 + full context22.7 GB- Can I run UIGEN X 8B on a Mac?
UIGEN X 8B requires at least 17.0 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 UIGEN X 8B locally?
Yes — UIGEN X 8B can run locally on consumer hardware. At BF16 quantization it needs 17.0 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is UIGEN X 8B?
At BF16, UIGEN X 8B can reach ~172 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~39 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 ÷ 17.0 × 0.55 = ~172 tok/s
Estimated speed at BF16 (17.0 GB)
AMD Instinct MI300X~172 tok/sNVIDIA GeForce RTX 4090~39 tok/sNVIDIA H100 SXM~128 tok/sAMD Instinct MI250X~106 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of UIGEN X 8B?
At BF16, the download is about 16.38 GB.
- Which GPUs can run UIGEN X 8B?
6 consumer GPUs can run UIGEN X 8B at BF16 (17.0 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 UIGEN X 8B?
21 devices with unified memory can run UIGEN X 8B at BF16 (17.0 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.