Is the NVIDIA GeForce RTX 3090 good for local AI?

The NVIDIA GeForce RTX 3090 is a solid choice for local AI. With 24GB of GDDR6X VRAM, it is ideal for 8B–30B models at Q4_K_M quantization via Ollama.

What is the memory bandwidth of the NVIDIA GeForce RTX 3090?

The NVIDIA GeForce RTX 3090 has 936 GB/s of memory bandwidth, which governs inference speed (tokens per second) when running local LLMs.

Pricing & Availability

Current Estimate

$599.99

SOLD OUT

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Last Verified: 2026-05-04

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What Can It Run?

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NVIDIA GeForce RTX 3090

The legendary used-market GOAT. 24GB VRAM at a fraction of the cost of 4090/5090. Still handles 70B models with ease.

Technical Datasheet

Specification	Value	AI Impact
VRAM Capacity	24 GB GDDR6X	Determines maximum model size (parameters).
Memory Bandwidth	936 GB/s	Governs tokens per second (inference speed).
AI Performance	285 TOPs	Raw throughput for FP8/INT8 matrix operations.
Power Draw (TDP)	350 W	Thermal design & PSU overhead requirements.
VRAM Type	GDDR6X	Memory generation affects bandwidth ceiling.

AI Model Compatibility

Llama 3.1 8B (Q4_K_M)

✓ PERFECT — Lightning Fast

Mistral NeMo 12B (Q4_K_M)

✓ COMPATIBLE — Smooth

DeepSeek R1 32B (Q4_K_M)

✓ COMPATIBLE

Llama 3.3 70B (Q4_K_M)

✗ Needs multi-GPU or CPU offload

See all 24GB-compatible models →

Price History

Savings Analysis

Currently $134.00 below the 90-day peak.

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