Originally Posted by EightDee8D
but imo faster vram ( like fury'hbm) does help with capacity issues. it doesn't completely fix it. but it does help.
It only helps to the extent that faster VRAM helps with performance irrespective
of capacity issues. When capacity becomes the primary bottleneck, the same general sort of things (reduced performance and/or texture streaming issues) will happen no matter how fast the memory is; until the primary bottleneck is alleviated, gains are either going to be minimal, or won't address the are of greatest concern (speeding up average frame rate while not reducing hitching, for example).
Originally Posted by Tgrove
Question still stands, have any of the naysayers actually used a card with hbm? Im still gonna say no on that
I don't own any cards with HBM, but I've used them (I always try before I buy). Fury still hitches in Elite: Dangerous
(the only game I have that really pushes VRAM needs to the point 4GiB cards show issues), more so than an 8GiB 290X, despite average frame rate being higher.
If past tests/precedents, logical deductions based on fundamental principles of how memory works, and AMD's own statements, don't sway you from the fallacy that 4GiB of HBM is miraculously able to hold more than 4GiB of GDDR5 (or GDDR2, or DDR4, or RDRAM, or SRAM, or magnetic core memory, or a billion sticky notes written in crayon for that matter), or that memory performance can influence what is not in memory, nothing will.
The current Fury, Fury Nano, and Fury X parts are very likely to be the only 4GiB HBM parts ever released (certainly with Fiji GPUs), so there is no way to directly compare them to parts with more or less memory on perfectly even footing. So, if only seeing is believing, fire up Elite: Dangerous Horizons
with texture resolutions set to 4k fly around for a while then go land on a planet...your Fury Xes will stutter more than slower cards (within reason) with more memory. If you watch VRAM utilization, you'll see it climb gradually until the GPU is forced to start evicting old assets and bring in new ones, at which point you'll hit a major stutter, see VRAM use decline significantly, then start to rise again. 8GiB cards virtually never reach this point, VRAM use generally plateaus and eviction events become far more subtle.