AMD: R7xx Speculation
- Thread starter Unknown Soldier
- Start date
- Status
It has numerours tweaks and changes. I would recommend using it.
I doubt it's used that much. Maybe with a higher emphasis on gpgpu it's more useful. AMD likely implemented it because shifters really are very cheap to implement, so why not do it?
Mintmaster
Veteran
You have to compare the best of both architectures, not the best G84 and the worst G71. The 7900 GTX is 73% faster than the 7900GS in pixel shading and texturing.
4 AA samples per clock & shader resolve
Instead of having to loop several times through feature/rate limited fixed function hardware for the resolve, the shaders should be able to combine high numbers of AA samples in one pass. (at least, if I'm correctly understanding how that works...)
Don;t know if it is fair, but, I feel we can take advantage looking at this
http://www.generation-3d.com/Radeon...ide-des-caracterisques-du-HD-4850,ar295-1.htm
posted by a angered french guy because he was not invited at Malaga Press conference....
By the way, shame on Ati for this, it was rude, and the guy look like a really nice person...
So, let's thanks him for filling our hunger...
trust me, he doesn't deserve to be invite at any conference
him, and all other people on this site are just teenagers
there is no one journalist on this site, only bad fud(zilla) tranlators, rumors peddlers,...
the information remains true
I thought it was confirmed more or less to be 750Mhz?
(edit: and the ram clock 900 (x4)) ?
Jawed
Legend
http://www.nordichardware.com/news,7860.html
Shows a slide indicating 750MHz due to GFLOPs rating. I think there was another slide saying 1200GFLOPs, but I can't remember where it is now.
This shows 750MHz:
http://forum.donanimhaber.com/m_24183986/tm.htm
and 900MHz memory. I suppose the memory cells inside the chips are running at 900MHz, but the interface is supposed to be DDR.
Jawed
Also do these seem real?
since there was no AA applied this benchmark means little as we all know how daramticaly things can change with AA. and crysis has always been a bit nvidia biased. that said it does appear the 4870 will be cheaper and perform better than the gtx 260 in the majority of cases and it will probably exchange blows with the 280 frequently.
Megadrive1988
Veteran
just think
4 CrossFire'ed 4850/4870 or 2 CrossFire'ed 4870X2 will have 3200 SP ^__^
4 CrossFire'ed 4850/4870 or 2 CrossFire'ed 4870X2 will have 3200 SP ^__^
Wasn't there a rumor that the SP count is 830-840? Just a theory, not even sure, but maybe they've dedicated those extra SPs for AA?
Nebuchadnezzar
Legend
May be a stupid question, but what's the difference between GDDR5 and "QDR" memory?
Well, the letters for one. 
- Status
Similar threads
