GPUs/NVIDIA GeForce RTX 3070 Ti/LTX Video

Can NVIDIA GeForce RTX 3070 Ti run LTX Video?

2B parameter Video Gen model on 8GB GDDR6X

Yes — runs at 8-bit quantization
~0.5-0.7 clips/min
SpeedFast inference, near-native speed
QualityNear-lossless — virtually identical to FP16

VRAM Requirements

LTX Video is a 2B parameter model. At full precision (FP16), it requires 10GB of VRAM. Your NVIDIA GeForce RTX 3070 Ti has 8GB, so you'll need to quantize it to 8-bit (Q8) to fit.

FP16 (Full Precision)10GB (need 2GB more)

Maximum quality, no quantization

Q8 (8-bit)6GB (2GB free)

Near-lossless, ~50% size reduction

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

Good quality, ~75% size reduction

Your GPU VRAM: 8GB GDDR6X at 608 GB/s bandwidth
Recommended system RAM: 32GB DDR5 (2x GPU VRAM minimum for model overflow)

What This Means in Practice

LTX Video at 8-bit precision on NVIDIA GeForce RTX 3070 Ti generates video clips with near-identical quality to full precision. Generation times are similar — video gen is bottlenecked by compute more than memory at this precision. A solid setup for local video generation.

NVIDIA GeForce RTX 3070 Ti Specs

VRAM8GB GDDR6X
Memory Bandwidth608 GB/s
TDP290W
CUDA Cores6,144
Street Price~$300
AI Rating3/10

Other GPUs That Run LTX Video

NVIDIA GeForce RTX 3060 Ti8GBQ8
$220
NVIDIA GeForce RTX 3060 12GB12GBFP16
$230
NVIDIA GeForce RTX 30708GBQ8
$250
NVIDIA GeForce RTX 40608GBQ8
$280
NVIDIA Tesla P4024GBFP16
$300
NVIDIA GeForce RTX 4060 Ti 8GB8GBQ8
$370

Other Video Gen Models on NVIDIA GeForce RTX 3070 Ti

Stable Video Diffusion1.5BFP16
3.5GB Q4
CogVideoX-5B5BQ4
7GB Q4
Mochi 110Boffload
10GB Q4
Wan Video 14B14Boffload
11GB Q4

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
NVIDIA GeForce RTX 3070 Ti Full SpecsBuild with This GPUQuantization GuideVRAM Calculator