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Llama 3.1 8B Instruct vs Gemma 2 9B Instruct

Side-by-side comparison of hardware requirements, quantization options, and specifications to help you choose the right model for your device.

Specifications Comparison

SpecLlama 3.1 8B InstructGemma 2 9B Instruct
Parameters8B9.2B
Architecturellamagemma2
LicenseLlama 3.1Gemma
Context Length128K tokens8K tokens
CategoryLanguage ModelLanguage Model
AuthorMetaGoogle
HF Downloads10.5M370.5K
VRAM Range5.08 - 17 GB5.87 - 9.65 GB
Quantizations4 options3 options
Best Quality Score100%98%

Quantization Options

Llama 3.1 8B Instruct

Q4_K_M
4.6 GB5.08 GB VRAM85% quality
Q5_K_M
5.3 GB5.84 GB VRAM90% quality
Q8_0
8.0 GB8.45 GB VRAM98% quality
FP16
16.0 GB17 GB VRAM100% quality

Gemma 2 9B Instruct

Q4_K_M
5.4 GB5.87 GB VRAM85% quality
Q5_K_M
6.2 GB6.69 GB VRAM90% quality
Q8_0
9.2 GB9.65 GB VRAM98% quality

In-depth comparison

TL;DR

Llama 3.1 8B Instruct is the better choice for most users due to its higher quality score and lower VRAM requirement, making it more accessible on a wider range of hardware.

When to choose Llama 3.1 8B Instruct

Llama 3.1 8B Instruct is the better pick for users who need a model that can handle longer context lengths (up to 131,072 tokens) and requires less VRAM (5.1GB). It also has a higher quality score (100%) and is more widely used and liked, indicating strong community support and reliability. This makes it ideal for applications requiring extensive context understanding, such as long-form content creation or detailed document analysis.

When to choose Gemma 2 9B Instruct

Gemma 2 9B Instruct is the better choice for users who prioritize a slightly larger model with a good performance-to-size ratio and a smaller context length (8,192 tokens). Despite having a slightly lower quality score (98%), it may offer more nuanced outputs in certain specialized tasks, making it suitable for applications like creative writing or coding where the additional parameters can enhance the model's ability to generate complex and detailed content.

Quality

Llama 3.1 8B Instruct has a slight edge in output quality with a best quality score of 100% compared to Gemma 2 9B Instruct's 98%. While Gemma 2 9B Instruct has more parameters (9.2B vs 8B), the difference in quality is minimal, and Llama 3.1 8B Instruct's higher score suggests it is more consistent and reliable in generating high-quality text.

Performance & hardware fit

Llama 3.1 8B Instruct requires less VRAM (5.1GB) compared to Gemma 2 9B Instruct (5.9GB), making it more suitable for a wider range of hardware, including consumer GPUs. This lower VRAM requirement also means faster loading times and potentially better performance on systems with limited resources.

Use-case fit

codingGemma 2 9B InstructGemma 2 9B Instruct's slightly larger parameter count may provide more nuanced and detailed code suggestions, making it a better fit for coding tasks.
creative writingGemma 2 9B InstructGemma 2 9B Instruct's additional parameters can enhance the complexity and creativity of generated text, making it more suitable for creative writing.
RAG / retrievalLlama 3.1 8B InstructLlama 3.1 8B Instruct's longer context length (131,072 tokens) makes it better suited for retrieval-augmented generation tasks that require extensive context understanding.
agent / tool useLlama 3.1 8B InstructLlama 3.1 8B Instruct's higher quality score and lower VRAM requirement make it more reliable and efficient for agent or tool use, especially on a variety of hardware setups.
running on consumer GPU (8-12GB)Llama 3.1 8B InstructLlama 3.1 8B Instruct's lower VRAM requirement (5.1GB) makes it more compatible with consumer GPUs, ensuring smoother operation and better performance.
long context (16K+)Llama 3.1 8B InstructLlama 3.1 8B Instruct's context length of 131,072 tokens far exceeds the 8,192 tokens of Gemma 2 9B Instruct, making it the clear choice for long-context tasks.
Verdict

Llama 3.1 8B Instruct wins for most users due to its higher quality score, lower VRAM requirement, and longer context length. However, Gemma 2 9B Instruct is the better choice for specialized tasks like coding and creative writing, where the additional parameters can enhance output quality.

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