Recent Radeon X1K Memory Controller Improvements in OpenGL with AA
- Thread starter Geo
- Start date
Kanyamagufa
Regular
I just have to say that this is one of those threads that makes it clear why the Beyond3D forum is so freaking awesome.
Quality, curiosity, and a passion for understanding.
I love this place.
Quality, curiosity, and a passion for understanding.
I love this place.
Serenity, those results are from the XL (and are very much along similar lines to those that I already posted in this thread). The telling results are with the XT.
For example: http://www.bjorn3d.com/read.php?cID=843&pageID=1801Dave Baumann said:
6xAA is faster than 4xAA in Doom 3 on an XT.
Why would Cat AI have a say on these optimisations beeing turned on or not? Isn't Cat AI supposed to increase performance whilst sacrificing (a bit of) image quality, this patch doesn't alter the image quality (or so I gatherred), so I don't see why it would be under Cat AI's control.tEd said:
XSBagage said:
Cat A.I has nothing to do with sacrificing image quality for performance. Rather it exists to apply application specific fixes, be they memory controller adjustments or something else. So yes, it's absolutely something that comes under Cat A.I's control if the particular adjustment isn't a global one.
geo: Yeah, they released a couple of things. Serious Sam II driver and Quake IV, erm, something (haven't tried it).
Bad language on my part. It doesn't solely exist to apply IQ/performance tradeoffs, rather that's just a section of its remit. And yeah, I've often wondered why the granularity myself. The two-stage choice is a really bad UI for what's essentially a profiling system.Pete said:
Catalyst AI is now a cludge.
Initially AI's remit was a method of enabling the various texture optimisations that are capable in RV350+; the default mode just uses the standard texture opmisations, the high mode is supposed to do some texture frequency analysis on the fly and pick optimal filering modes to improve performance without, supposedly, sacrificing IQ too much (hence the "AI" in the name). Turn it off entirely and all texture optimisations are gone.
That is what Cat AI is supposed to do, however ATI also decided to attach the activation for any app specific fix/optimisation to it - IMO this is a way of making sure that people bench with Cat AI on ("Why doesn't this app work?" "Oh, turn Cat AI on and it will (and, indicidentally the texture optimisations will be present and performance goes up)"), however what was a secondary element to Cat AI has now sort of become the primary element to it.
Initially AI's remit was a method of enabling the various texture optimisations that are capable in RV350+; the default mode just uses the standard texture opmisations, the high mode is supposed to do some texture frequency analysis on the fly and pick optimal filering modes to improve performance without, supposedly, sacrificing IQ too much (hence the "AI" in the name). Turn it off entirely and all texture optimisations are gone.
That is what Cat AI is supposed to do, however ATI also decided to attach the activation for any app specific fix/optimisation to it - IMO this is a way of making sure that people bench with Cat AI on ("Why doesn't this app work?" "Oh, turn Cat AI on and it will (and, indicidentally the texture optimisations will be present and performance goes up)"), however what was a secondary element to Cat AI has now sort of become the primary element to it.
Luminescent
Veteran
Is there any Cat option/configuration avialable that maintains app specific memory controller optimizations without forcing texture filtering optimizations?
Similar threads
- Locked