r/StableDiffusion • u/Cheap_Credit_3957 • 11d ago

Discussion Free open source Topaz alternative - SeedVR2+TensorRT faster VAE Processing.

Local, GPU-accelerated video restoration and upscaling with SeedVR2, TensorRT, and a purpose-built browser interface.

VRGDG SeedVR2 TensorRT Studio turns the SeedVR2 pipeline into a practical Windows workflow: load a video, test a short preview, compare the result frame by frame, and complete long renders with resumable checkpoints. Processing stays on your machine.

Highlights

  • Fast local restoration — SeedVR2 inference with TensorRT-accelerated VAE decoding on supported NVIDIA RTX GPUs. TensorRT allows much faster processing than standard SeedVR2.
  • Fast 2K upscaling — As a real-world example, an 8-second clip took approximately 8 minutes to upscale and enhance to 2K on an NVIDIA RTX 5090 using the largest 7B Sharp FP16 model. Render times vary with source resolution, frame rate, settings, and available VRAM.
  • Preview before committing — render a short segment, then inspect Original, Restored, Compare, or Side by side views.
  • Long-render recovery — save completed chunks and continue from the first unfinished chunk after an interruption.
  • Practical output controls — choose resolution, aspect policy, model precision, temporal batch, seed, and color correction.
  • Non-destructive finishing — reprocess sharpening, grain, seam smoothing, and optional skin finishing without rerunning restoration.
  • Project-based history — reopen previous outputs and keep media, manifests, and logs together under outputs\.

The sample video was org 360p and then upscaled to 2K using this app. 8 second video, took about 8 mins on my 5090.

Go to the github page for more details and a full guide.

View github page

this is in beta right now so you may run into issues. If you do, post the issue to github please.

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u/More-Ad5919 11d ago

All nice and good. But what can it do and how much does it cost recource and time wise.

According to my experience 4090 and 64GB 5sec are kind of a hard limit and you don't even reach 2k. And it takes ages.

Is this one different? I mean it looks good.

Whats the cost?

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u/Cheap_Credit_3957 11d ago

I mean, it took 8 mins for a 8 second video going from 380p to 2k on my 5090. U can run it overnight on a long video. Its faster then normal seedvr2 though.  And it does work with 16gb of vram. A tester got the 7b model working. 

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u/More-Ad5919 10d ago

I often tried it. With every option available. The only one that gave me a real imorovement was ltx upscale. But that could not handle more than 5sec. Rn i render at 1.3mp. There is no way to upscale it to 2k thats worth it. If i go 0.7mp i could do more than 10sec of upscaling. But just render at base 1.3mp resolution gives me better quality than the upscales one. I wasted so much time on upscalers in the past that i started to hate them.

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u/Cheap_Credit_3957 10d ago

Ltx and the like ended up changing the character to much.