LTX-Video · 42 cards measured first-party · Updated October 2026

How Fast Is LTX-Video on Each GPU?

LTX-Video is the accessible end of AI video: a distilled model that generates a 97-frame clip at 704×480, and, unusually for video, runs on as little as ~14GB of VRAM. It's the workload that tells you whether local AI video is realistic on the hardware you already have.

Benchmarked weights: Lightricks/LTX-Video-0.9.5

Fastest we measured

NVIDIA B300

31.87 frames/s on LTX-Video, the ceiling. Measured on our bench. 288GB of VRAM, $40,000 at launch.

Pros

• 31.87 frames/s on LTX-Video
• 288GB, clears the LTX-Video floor
• Rentable by the hour rather than bought

Cons

• 1400W board rating
• Datacenter or workstation hardware, not a retail purchase

Best for: LTX-Video work where you want the ceiling gone rather than the cheapest entry.

Best consumer card

NVIDIA GeForce RTX 5090

10.45 frames/s on LTX-Video, fastest card you can buy at retail. Measured on our bench. 32GB of VRAM, $1,999 at launch.

Pros

• 10.45 frames/s on LTX-Video
• 32GB, clears the LTX-Video floor

Cons

• 575W board rating

Cheapest card that runs it

GeForce RTX 5060 Ti

1.71 frames/s on LTX-Video, lowest launch price that still fits. Measured on our bench. 16GB of VRAM, $429 at launch.

Pros

• 1.71 frames/s on LTX-Video
• 16GB, clears the LTX-Video floor

Cons

• 180W board rating

Best value

GeForce RTX 5080

4.33 frames/s on LTX-Video, most speed per dollar. Measured on our bench. 16GB of VRAM, $999 at launch. That is 4.34 frames/s per $1,000 of launch price.

Pros

• 4.33 frames/s on LTX-Video
• 16GB, clears the LTX-Video floor

Cons

• 360W board rating

Compute-bound, but with a system-RAM requirement most benchmarks ignore: the weights need staging, so a card with enough VRAM on a RAM-starved host still fails. We gate on both, which is why some cards you'd expect to see here are absent.

Because this workload is tensor-compute bound, the ranking tracks architecture generation and tensor throughput rather than memory bandwidth, the reverse of our LLM charts. The same two cards can swap places entirely depending on which of these pages you're reading. That's the reason we run twelve workloads instead of publishing one score. A GPU isn't fast or slow. It's fast at some things and gated out of others, and which of those matters depends entirely on what you're actually going to run.

Our verdict

NVIDIA B300 tops our LTX-Video leaderboard at 31.87 frames/s (measured), 2193% of the way clear of the slowest card that still fits. But the number that decides most purchases isn't on the chart. It's the 31 cards that can't run LTX-Video at all. This is a compute workload: buy architecture generation, not raw VRAM, as long as you clear the floor first.

FAQ

What is the fastest GPU for LTX-Video?

NVIDIA B300, at 31.87 frames/s on our bench, a first-party measurement. It carries 288GB of VRAM. Of the 74 cards we have LTX-Video data for, 43 can run it at all.

How much VRAM do I need for LTX-Video?

~14GB VRAM minimum, ~64GB for the full path, plus ~20GB of system RAM. The RAM gate catches people out more than the VRAM one.

Why does the LTX-Video ranking look different from your other benchmarks?

Because this workload is tensor-compute bound, the ranking tracks architecture generation and tensor throughput rather than memory bandwidth, the reverse of our LLM charts. The same two cards can swap places entirely depending on which of these pages you're reading. That's why we publish twelve separate workloads rather than one blended score, the ordering genuinely changes depending on the job.

Are these LTX-Video numbers measured or estimated?

Both, and every row says which. 42 of the 74 cards here were rented and run by us on the same harness. The remainder are anchored estimates interpolated per workload against those measurements. We never blend the two silently, if a row says Estimated, we have not run that card.

Can I rent a GPU to run LTX-Video instead of buying one?

Yes, and for the cards at the top of this leaderboard it's the only realistic option, most of them have no retail channel at all. It's also how we got these numbers: we rented the hardware by the hour rather than buying it. That's worth considering before you spend on a card to find out whether it's fast enough.

Why publish cards that can't run LTX-Video?

Because it's the most useful thing we know. A card that can't load a model doesn't run it slowly, it doesn't run it. Most benchmark sites leave that as a blank cell or quietly drop to a smaller quantisation to produce a number. We publish it as a hard gate and score it zero, because 'this card cannot do the thing you want' is the answer to the question you were actually asking.

How we test

Every ranking on this page comes from our own benchmark runs, not vendor claims. Cards marked Measured were rented and run by us; cards marked Estimated are interpolated per workload against those measured anchors and are labelled on every row, we never blend the two silently. LLMs run on llama.cpp (llama-bench) at Q4_K_M with -p 512 -n 128. Diffusion and video run on diffusers/ComfyUI at BF16, with SDXL at FP16. Each workload gets a warmup pass plus multiple timed runs (5 for small LLMs, 3 for large models and images, 2 for video); we publish the mean as the result and the minimum as the 1% low. Run-to-run variance is under 0.5%. Telemetry, power, temperature, utilisation, clocks, peak VRAM, is sampled at 1 Hz for the duration of every run. Where a model exceeds a card's VRAM we publish a hard won't-fit result rather than quietly dropping to a smaller quantisation. A card that can't run a model scores zero on it. Silently swapping precision to make a number appear would make every number on this site meaningless. All figures are single-GPU, single-stream, batch-size-1. That is the honest way to measure what one card does for one user, and it is deliberately not how a datacenter serves a model. Vendor and MLPerf figures use large batches across many GPUs and will be far higher. Neither is wrong, they answer different questions. Ours answers 'what will this card do for me'.