ASUS Zephyrus G15 (GA503QM) with a laptop 3060 (95W, I think) with 6GB of VRAM, basujindal fork, does 512×512 at about 3.98 iterations per second in turbo mode (for which there’s plenty of memory at that size). That’s under 15 seconds per image on even small batches at the default 50 steps, and I think it was only using around 4.5GB of VRAM.
(I say “I think” because I’ve uninstalled the nvidia-dkms package again while I’m not using it because having a functional NVIDIA dual-GPU system in Linux is apparently too annoying: Alacritty takes a few seconds to start because it blocks on spinning up the dGPU for a bit for some reason even though it doesn’t use it, wake from sleep takes five or ten seconds instead of under one second, Firefox glyph and icon caches for individual windows occasionally (mostly on wake) get blatted (that’s actually mildly concerning, though so long as the memory corruption is only in GPU memory it’s probably OK), and if the nvidia modules are loaded at boot time Sway requires --unsupported-gpu and my backlight brightness keys break because the device changes in the /sys tree and I end up with an 0644 root:root brightness file instead of the usual 0664 root:video, and I can’t be bothered figuring it out or arranging a setuid wrapper or whatever. Yeah, now I’m remembering why I would have preferred a single-GPU laptop, to say nothing of the added expense of a major component that had gone completely unused until this week. But no one sells what I wanted without a dedicated GPU for some reason.)
(I say “I think” because I’ve uninstalled the nvidia-dkms package again while I’m not using it because having a functional NVIDIA dual-GPU system in Linux is apparently too annoying: Alacritty takes a few seconds to start because it blocks on spinning up the dGPU for a bit for some reason even though it doesn’t use it, wake from sleep takes five or ten seconds instead of under one second, Firefox glyph and icon caches for individual windows occasionally (mostly on wake) get blatted (that’s actually mildly concerning, though so long as the memory corruption is only in GPU memory it’s probably OK), and if the nvidia modules are loaded at boot time Sway requires --unsupported-gpu and my backlight brightness keys break because the device changes in the /sys tree and I end up with an 0644 root:root brightness file instead of the usual 0664 root:video, and I can’t be bothered figuring it out or arranging a setuid wrapper or whatever. Yeah, now I’m remembering why I would have preferred a single-GPU laptop, to say nothing of the added expense of a major component that had gone completely unused until this week. But no one sells what I wanted without a dedicated GPU for some reason.)