LTX-2 Hardware Requirements
The first open model that generates synchronized audio AND video — up to 4K at 50fps — and among the fastest per clip. The catch: it genuinely wants a 32GB flagship to shine.
VRAM needed
32 GB
minimum 12 GB
Cheapest GPU that runs it: RTX 3060 (~$238 used)
Check Price on AmazonUpdated July 2026. Estimates — see methodology below.
VRAM guidance
Official specs want 32GB+ (distilled ~28GB); community forks run reduced resolutions on 12GB. The RTX 5090 is the card it was born for.
Best GPUs for LTX-2
The cheapest way to run LTX-2 well.
The fastest single-GPU experience for LTX-2.
GPU Compatibility
Every GPU in our database, scored against LTX-2.
| GPU | VRAM | Verdict | Price | |
|---|---|---|---|---|
| RTX 5090 | 32 GB | Runs great | from $2,800 | Check price |
| RTX 3060 | 12 GB | Tight fit | ~$238 used | Check price |
| Arc B580 | 12 GB | Tight fit | from $250 | Check price |
| RX 6700 XT | 12 GB | Tight fit | ~$315 used | Check price |
| Arc A770 | 16 GB | Tight fit | from $300 | Check price |
| RX 7700 XT | 12 GB | Tight fit | ~$415 used | Check price |
| RX 6800 XT | 16 GB | Tight fit | ~$438 used | Check price |
| RX 7800 XT | 16 GB | Tight fit | ~$488 used | Check price |
| RTX 4070 | 12 GB | Tight fit | ~$500 used | Check price |
| RTX 4070 SUPER | 12 GB | Tight fit | ~$563 used | Check price |
| RX 7900 XT | 20 GB | Tight fit | ~$588 used | Check price |
| RTX 5060 Ti | 16 GB | Tight fit | from $550 | Check price |
| RX 9070 | 16 GB | Tight fit | from $575 | Check price |
| RTX 5070 | 12 GB | Tight fit | from $600 | Check price |
| RX 9070 XT | 16 GB | Tight fit | from $600 | Check price |
| RTX 4070 Ti SUPER | 16 GB | Tight fit | ~$750 used | Check price |
| RX 7900 XTX | 24 GB | Tight fit | ~$838 used | Check price |
| RTX 4080 SUPER | 16 GB | Tight fit | ~$900 used | Check price |
| RTX 5070 Ti | 16 GB | Tight fit | from $900 | Check price |
| RTX 3090 | 24 GB | Tight fit | ~$1,150 used | Check price |
| RTX 5080 | 16 GB | Tight fit | from $1,250 | Check price |
| RTX 4090 | 24 GB | Tight fit | ~$2,375 used | Check price |
| Arc B570 | 10 GB | Partial offload | from $225 | |
| RTX 3080 | 10 GB | Partial offload | ~$463 used | |
| RTX 4060 | 8 GB | Not enough VRAM | ~$275 used | |
| RX 7600 | 8 GB | Not enough VRAM | from $250 | |
| RTX 4060 Ti | 8 GB | Not enough VRAM | ~$338 used | |
| RTX 3070 | 8 GB | Not enough VRAM | ~$338 used | |
| RTX 5060 | 8 GB | Not enough VRAM | from $325 |
Frequently Asked Questions
How much VRAM do I need to run LTX-2?+
LTX-2 needs a minimum of 12GB of VRAM, with 32GB recommended for comfortable use. Official specs want 32GB+ (distilled ~28GB); community forks run reduced resolutions on 12GB. The RTX 5090 is the card it was born for.
What is the cheapest GPU that runs LTX-2?+
NVIDIA GeForce RTX 3060 (12GB, ~$238 used) is the cheapest current GPU in our database that runs LTX-2 fully in VRAM.
Is LTX-2 free for commercial use?+
Yes. LTX-2 is released under the LTX Open Weights License, which permits commercial use.
Related Models
How we calculate these numbers
VRAM = model weights (parameters × bits per weight ÷ 8) + KV cache (architecture-specific bytes per token × context length) + ~1.2GB runtime overhead. Speed estimates assume decode is memory-bandwidth-bound at ~50% utilization (lower for MoE models, which pay routing overhead), matching typical llama.cpp performance on consumer cards; real results vary with runtime, drivers, and settings. Quant sizes reflect GGUF K-quants, which keep some layers at higher precision. Figures are estimates for planning, not guarantees — when in doubt, buy more VRAM than you need today. Prices shown are launch MSRP; mid-2026 street prices often run well above MSRP due to the ongoing memory shortage, and used 24GB cards are holding their value unusually well.