Param 1 5B — Hardware Requirements & GPU Compatibility
ChatParam 1 5B is a 5B-parameter open language model from bharatgenai. It supports a context window of up to 4,096 tokens. At BF16 it needs about 10.43 GB of VRAM — see which GPUs and Macs can run it below.
Specifications
- Publisher
- bharatgenai
- Parameters
- 5B
- Architecture
- ParamBharatGenForCausalLM
- Context Length
- 4,096 tokens
- Vocabulary Size
- 256,000
- Release Date
- 2025-12-19
- License
- Other
Get Started
HuggingFace
How Much VRAM Does Param 1 5B Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16est. | 16.00 | 10.4 GB | 10.6 GB | 10.00 GB | Brain floating point 16 — preferred for training |
est.= calculated VRAM estimate; no published GGUF file found for that quantization yet. Other rows are verified against real community uploads.
Which GPUs Can Run Param 1 5B?
BF16 · 10.4 GBParam 1 5B (BF16) requires 10.4 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 14+ GB is recommended. Using the full 4K context window can add up to 0.1 GB, bringing total usage to 10.6 GB. 37 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti, NVIDIA GeForce RTX 3080 Ti.
Runs great
— Plenty of headroomDecent
— Enough VRAM, may be tightWhich Devices Can Run Param 1 5B?
BF16 · 10.4 GB48 devices with unified memory can run Param 1 5B, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, NVIDIA Jetson Orin NX 16GB.
Runs great
— Plenty of headroomDecent
— Enough memory, may be tightFrequently Asked Questions
- How much VRAM does Param 1 5B need?
Param 1 5B requires 10.4 GB of VRAM at BF16.
VRAM = Weights + KV Cache + Overhead
Weights = 5B × 16 bits ÷ 8 = 10 GB
KV Cache + Overhead ≈ 0.4 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 0.6 GB (at full 4K context)
VRAM usage by quantization
BF1610.4 GBBF16 + full context10.6 GB- Can I run Param 1 5B on a Mac?
Param 1 5B requires at least 10.4 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 Param 1 5B locally?
Yes — Param 1 5B can run locally on consumer hardware. At BF16 quantization it needs 10.4 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Param 1 5B?
At BF16, Param 1 5B can reach ~422 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~63 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = (bandwidth GB/s ÷ model GB) × efficiency
Example: NVIDIA B200 → 8000 ÷ 10.4 × 0.65 = ~499 tok/s
Estimated speed at BF16 (10.4 GB)
~499 tok/s~63 tok/s~499 tok/s~422 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Param 1 5B?
At BF16, the download is about 10.00 GB.
- Which GPUs can run Param 1 5B?
37 consumer GPUs can run Param 1 5B at BF16 (10.4 GB). Top options include AMD Radeon RX 6800, AMD Radeon RX 6800 XT, AMD Radeon RX 6900 XT, AMD Radeon RX 6700 XT. 26 GPUs have plenty of headroom for comfortable inference.
- Which devices can run Param 1 5B?
52 devices with unified memory can run Param 1 5B at BF16 (10.4 GB), including AMD Ryzen AI 9 HX 370 (Strix Point) Laptop, ASUS Ascent GX10, Apple iPhone 17 Pro, Asus ROG Flow Z13 (2025, Ryzen AI Max+ 395, 128 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.