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[EXP] AMD RV775 Ready to Give Nvidia a Punch - Page 3

post #21 of 66
Quote:
Originally Posted by ZealotKi11er View Post
Yes but looking at Nvidia which only adds 24Sp to the GTX260 just to be better ATI does the same. They dont have to rush with faster cards.
NV got every thing in the core up by 12.5% and kept the same clock and Transistors count , not 5% more shaders

Quote:
Originally Posted by gamervivek View Post
judging from the number of TMUs it should be a 960 shader card.
That sounds better
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post #22 of 66
looks like u can't CF these with 48x0s since it's RV775
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post #23 of 66
Looks good I welcome the competition.
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post #24 of 66
RV775Pro is that an improved version of the 4870 X2 ?.
post #25 of 66
How the heck did the die size shrink?
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post #26 of 66
Transistors are funny little things. Depending on how you lay them out, you can easily double the amount just to get where you need to go.

However, the article suggests that it is the same RV770 core, with all the repair structures operating. This makes it more difficult to postulate as to what is going on. Maybe they decided to drop UVD? Put it on an external chip? Maybe they redid PCB traces to do intercore connects? Maybe the source is pure fabrication?

By the way:
R600: 700 Million Transistors, 320 Stream Processors
RV670: 666 Million Transistors, 320 Stream Processors
RV770: 956 Million Transistors, 800 Stream Processors

They worked some magic there.

BTW the 775 Pro is like a 4850. the 775 XT is like the 4870. Pro and XT were used in the X series and the 2900 series, Pro < XT. Therefore, the Pro is not at all like the X2. Not even the XT.

As for naming, 2900 to 3800 was quite a jump, for effectively the same thing.
Edited by Sun - 12/12/08 at 9:04am
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post #27 of 66
When they release the 1Gb RV775XT I'll get that.
post #28 of 66
I agree with naming it 4860 and 4890. Just doesn't seem like enough of a jump to warrant 58xx status. It's actually making me feel good with my GPU for a while.
Edited by smoothjk - 12/12/08 at 8:59am
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post #29 of 66
its the R775 right? isnt the R770 the 4870? I dont think this article has the actual naming correct.
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post #30 of 66
Maybe they're taking out the Sideport since it's not even used right now anyways. IIRC Sideport increased the power consumption of the cards, which is why AMD decided to turn it off. Perhaps they'll try for it again after the shrink down to 40nm.
    
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