Llama 3.3 70B InstructvsLlama 3.1 70B
Complete comparison between Llama 3.3 70B Instruct (70B parameters, Meta) and Llama 3.1 70B (70B, Meta). VRAM required by quantization, tokens per second measured on 4 reference GPUs, use-case verdict, license, installation commands. All figures are calculated from catalog data—no copy-pasting between pages.
In brief
| Feature | Llama 3.3 70B Instruct | Llama 3.1 70B |
|---|---|---|
| Settings | 70B | 70B |
| Family | Llama | Llama |
| Author | Meta | Meta |
| Origin | US | US |
| License | Llama 3.3 Community | Llama 3 Community |
| Context | 128,000 tokens | 131,072 tokens |
| Output | December 2024 | July 2024 |
Memory footprint
Approximate VRAM required for inference with an average context window. The winner (in green) is the model that uses less — smaller models have the edge.
| Quantization | Llama 3.3 70B Instruct | Llama 3.1 70B |
|---|---|---|
| Q4_K_M (lightweight) | 40 GB | 40 GB |
| Q5_K_M (balanced) | 48 GB | 48 GB |
| Q8 (near-lossless) | 75 GB | 75 GB |
| FP16 (max quality) | 140 GB | 140 GB |
| CPU-only RAM | 64 GB | 64 GB |
Estimated speed (tokens/second)
Estimates based on the best quantization that can fit on each GPU. Actual figures depend on the prompt, context, and engine (llama.cpp, vLLM, MLX). Methodology.
| Reference GPU | Llama 3.3 70B Instruct | Llama 3.1 70B |
|---|---|---|
| RTX 4090 (24 GB) | ✗ too heavy | ✗ too heavy |
| RTX 4080 (16 GB) | ✗ too heavy | ✗ too heavy |
| RTX 3060 12GB (12 GB) | ✗ too heavy | ✗ too heavy |
| Apple M4 Pro (48 GB) (36 GB) | ✗ too heavy | ✗ too heavy |
Verdict by use case
For each common use case, we indicate which of the two is better suited based on its tags, size, and specialization.
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Strengths and weaknesses
Llama 3.3 70B Instruct
Llama 3.1 405B quality at 1/6 the size. Weights under a community license, gated HF access.
- 405B quality at 1/6 the size
- 128k ctx
- Very strong at reasoning and coding
- HF gated (accept Meta's terms)
- Community license with a >700M MAU clause
- No vision
Installation
Llama 3.1 70B
The in-house GPT-4. Reserved for serious rigs (2×3090 mini).
- Open-weight quality benchmark
- 128k context
- Very good at reasoning
- 40 GB of VRAM in Q4 (2×3090 minimum)
- Restricted commercial license >700M MAU
Installation
Frequently asked questions
Which model runs best on RTX 4090 (24 GB): Llama 3.3 70B Instruct or Llama 3.1 70B?
On a RTX 4090, Llama 3.3 70B Instruct does not fit in 24 GB—you need to offload part of it to the CPU, and Llama 3.1 70B does not fit in 24 GB either. See the configurator to test your exact GPU.
Which uses the least VRAM?
Both require the same amount of VRAM in Q4 (40 GB). The choice then comes down to the license or perceived quality.
Can these models be used in commercial production?
Llama 3.3 70B Instruct is under Llama 3.3 Community — check the restrictions, especially the monthly user limits. Llama 3.1 70B is under Llama 3 Community — also check the terms. For SaaS, prefer Apache 2.0 or MIT.
Which one should you choose in 2026?
Depends on your primary constraint. Smaller / faster: Llama 3.3 70B Instruct (70B). More capable: Llama 3.3 70B Instruct (70B). If you're unsure, run the configurator with your GPU and use case — it will decide based on both.
Alternatives to consider
If neither works for you, here are some neighboring models you could explore.