Win10, i7-7700, gtx1070 8gb, 16gb RAM
testing on tab with 182 animation collection threads
version 11.0.1 - (160 gif + 22 png, total 800mb of HDD) - eats all available VRAM (around 7gb) and around 1.5gb of extra RAM (drops to 1gb after few minutes)
build 1458 with ASTC - (all aastc, total 867mb of HDD) - eats all available VRAM (around 7gb) and around 2gb of extra RAM (drops to 1.5gb later), hard freezes while trying to load many images at once, hard freezes with already loaded images too, took quite a few tries to catch middle of the list - it was lag-scrolling from top straight to bottom and back to top again
yeah, i don't know... it was using VRAM much more efficently and it took much longer to fill up, but in the end result is pretty much the same, if not worse
unload off-screen on the other hand is awesome, works without noticeable problems and keeps VRAM under control, i'm totally fine with image load time (it's around a second with gifs for me, longer with aastc and damn those freezes), so this thing just by itself is already great for me