42dot·LlamaForCausalLM

42dot LLM PLM 1.3B — Hardware Requirements & GPU Compatibility

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Specifications

Publisher
42dot
Parameters
1.4B
Architecture
LlamaForCausalLM
Context Length
4,096 tokens
Vocabulary Size
50,304
Release Date
2024-02-13
License
CC BY-NC 4.0

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How Much VRAM Does 42dot LLM PLM 1.3B Need?

Select a quantization to see compatible GPUs below.

QuantizationBitsVRAM
BF1616.003.6 GB

Which GPUs Can Run 42dot LLM PLM 1.3B?

BF16 · 3.6 GB

42dot LLM PLM 1.3B (BF16) requires 3.6 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 5+ GB is recommended. Using the full 4K context window can add up to 0.4 GB, bringing total usage to 4.0 GB. 35 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.

Which Devices Can Run 42dot LLM PLM 1.3B?

BF16 · 3.6 GB

33 devices with unified memory can run 42dot LLM PLM 1.3B, including NVIDIA DGX H100, NVIDIA DGX A100 640GB.

Related Models

Frequently Asked Questions

How much VRAM does 42dot LLM PLM 1.3B need?

42dot LLM PLM 1.3B requires 3.6 GB of VRAM at BF16.

VRAM = Weights + KV Cache + Overhead

Weights = 1.4B × 16 bits ÷ 8 = 2.9 GB

KV Cache + Overhead 0.7 GB (at 2K context + ~0.3 GB framework)

KV Cache + Overhead 1.1 GB (at full 4K context)

VRAM usage by quantization

3.6 GB
4.0 GB

Learn more about VRAM estimation →

Can I run 42dot LLM PLM 1.3B on a Mac?

42dot LLM PLM 1.3B requires at least 3.6 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 42dot LLM PLM 1.3B locally?

Yes — 42dot LLM PLM 1.3B can run locally on consumer hardware. At BF16 quantization it needs 3.6 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is 42dot LLM PLM 1.3B?

At BF16, 42dot LLM PLM 1.3B can reach ~814 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~183 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 MI300X5300 ÷ 3.6 × 0.55 = ~814 tok/s

Estimated speed at BF16 (3.6 GB)

~814 tok/s
~183 tok/s
~609 tok/s
~503 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of 42dot LLM PLM 1.3B?

At BF16, the download is about 2.88 GB.

Which GPUs can run 42dot LLM PLM 1.3B?

35 consumer GPUs can run 42dot LLM PLM 1.3B at BF16 (3.6 GB). Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 35 GPUs have plenty of headroom for comfortable inference.

Which devices can run 42dot LLM PLM 1.3B?

33 devices with unified memory can run 42dot LLM PLM 1.3B at BF16 (3.6 GB), including Mac Mini M4 (16 GB), Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.