Skip to main content
Mistral AIDense

Mistral Small 3 RAM Calculator

Mistral Small 3 is a 24B-parameter language model optimized for low-latency performance across common AI tasks. Released under the Apache 2.0 license, it features both pre-trained and instruction-tuned versions designed...

Standard Recommendation

32GB RAM

Calculated for 4-bit (Q4_K_M) @ 8K Context

1. Select Quantization Level

Quantization compresses model weights to reduce RAM usage, with minor impacts on output quality.

2. Set Target Context Length

Longer contexts require more active memory for the Key-Value (KV) cache.

8,192 tokens
1K tokens32K64K128K tokens

Inference Bandwidth & Speed Matrix

Estimates generation speeds (tokens per second) based on physical memory channel bandwidth constraints.

DDR4 CPU Mode

45 GB/s

3.3 t/s

DDR5 CPU Mode

96 GB/s

7.1 t/s

Mac Unified Memory

300 GB/s

22.2 t/s

GPU VRAM (RTX 4090)

1008 GB/s

74.7 t/s

*Token throughput calculated strictly from weight volume transfers over memory channels. Actual generation speeds can be further throttled by processing threads or VRAM offloading parameters.

Technical Specifications

Total Parameter Count24 Billion
Active Parameters Per TokenDense (All active)
Maximum Context Window33K tokens
Primary Framework SupportOllama, llama.cpp, ExLlamaV2, vLLM

GPU & VRAM Sizing Profile

Flagship Consumer GPU
Est. VRAM Required16.5 GB VRAM
Target GPU Hardware1x RTX 3090 or RTX 4090 (24GB VRAM)

Hardware Profile: The consumer gold standard. Allows 100% GPU acceleration on a single card, delivering blazing-fast token generation.

Mistral Small 3 Memory FAQs

How much RAM does Mistral Small 3 require?

To run Mistral Small 3 locally, memory size depends on your selected quantization. At 4-bit compression (Q4_K_M), the weights take up ~13.5GB of RAM. When combined with context cache and OS overhead, a standard **32GB system memory kit** is recommended. Unquantized FP16 execution requires a **64GB memory setup**.

What are the hardware requirements to run Mistral Small 3 at FP16 precision?

Running Mistral Small 3 at unquantized 16-bit precision requires loading ~48GB of model weights directly into VRAM or system memory. A minimum system memory target of **64GB RAM** is required to run the weights stably and avoid out-of-memory crashes.

Is Mistral Small 3 dense or Mixture-of-Experts (MoE)?

Mistral Small 3 is built on a **Dense** architecture. It features a dense parameter layout containing 24 Billion parameters. All weights are active and computed on every single pass during token generation.

How does context window size affect RAM usage for Mistral Small 3?

Context size directly scales the size of the Key-Value (KV) cache. At a standard 8,192 token context, the KV cache for Mistral Small 3 uses ~0.06GB. If you scale this to 32.768K tokens, the KV cache can scale past hundreds of GBs, requiring multi-GPU or workstation-class RAM configurations.