Can NVIDIA GeForce RTX 3090 run LTX Video?

2B parameter Video Gen model on 24GB GDDR6X

Yes — runs at full precision
~0.4-0.7 clips/min
SpeedFastest possible inference
QualityMaximum quality, no degradation

VRAM Requirements

LTX Video is a 2B parameter model. At full precision (FP16), it requires 10GB of VRAM. Your NVIDIA GeForce RTX 3090 has 24GB — enough to run it without any quantization.

FP16 (Full Precision)10GB (14GB free)

Maximum quality, no quantization

Q8 (8-bit)6GB (18GB free)

Near-lossless, ~50% size reduction

Q4 (4-bit)4GB (20GB free)

Good quality, ~75% size reduction

Your GPU VRAM: 24GB GDDR6X at 936 GB/s bandwidth
Recommended system RAM: 48GB DDR5 (2x GPU VRAM minimum for model overflow)

What This Means in Practice

NVIDIA GeForce RTX 3090 can run LTX Video at full precision for video generation. You can generate short video clips from text prompts or images at maximum quality. Video generation is very compute-intensive — expect each clip to take 30 seconds to several minutes depending on resolution and length.

NVIDIA GeForce RTX 3090 Specs

VRAM24GB GDDR6X
Memory Bandwidth936 GB/s
TDP350W
CUDA Cores10,496
Street Price~$900
AI Rating7/10

About LTX Video

Lightricks' lightweight video generation model. Fast and efficient — the easiest video gen model to run locally. Generates 5-second clips. Quality is lower than larger models but runs on 8GB GPUs.

Category: Video Gen · Parameters: 2B · CUDA required: Recommended