R520 Photo,ATI?s R520 Has Similar Die Size as R480

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ayabe

Diamond Member
Aug 10, 2005
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That's a chop, :p

Well it's nice to know that the product does exist, bring on the launch already!
 
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nRollo

Banned
Jan 11, 2002
10,460
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Yup. It's a video card.

The fact that the picture has been posted online means that ATI?s R520 does exist in silicon. It is unknown, however, whether it is in the state that it can actually be launched commercially.
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Marsumane

Golden Member
Mar 9, 2004
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Little info overall, but still interesting to know that its around the same size as their last chip. Just hope it doesnt perform as closely as it's size is to the x800.
 
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nRollo

Banned
Jan 11, 2002
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Originally posted by: KeepItRed
Who cares about the info? If it's in good enough condition to make a screenshot....:D
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I assume you're joking. Most of us only care about info, as we are unable to tell anything by looking at a chip that may not even be functional.

Another dry, splintery chicken bone from ATI- instead of the core/RAM speed, number of pixel pipelines/vertex processors, check box features they could have given us. :(

 
nitromullet

nitromullet

Diamond Member
Jan 7, 2004
9,031
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If you link to the photo on HKEPC you will notice that they don't actually have the two chips next to each other, but next to a coin to give some frame of size reference. So, that means that Xbit has a picture of R520 from one source and a picture of R480 from another, and then they pasted them together to make a size comparison. The mistake here is that they are assuming that the entire chip itself itself is the exact same size as R480. I'm not saying that their conslusion is incorrect... The R520 core may well be smaller than than R480, but their methods are certainly less than scientific.

Edit: Additionally, just because someone has a physical sample, doesn't mean anything about production. It wasn't that long ago, before the 7800GTX was launched that we are all looking at an engineering sample G70 based card that was so fried that it had burn marks on it. Of course, we couldn't see them in the pictures until they were pointed out to us by someone who had seen the card in person. Obvioulsy, that didn't stop the launch of the GTX, but I wouldn't put too much stock into leaked, cropped, and blurry photos you see on the web.
 
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Lonyo

Lifer
Aug 10, 2002
21,938
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Assuming all is correct, the R520 is FAIRLY unlikely to have 32 pipelines.
I say this based on the fat that a die shrink from 130nm to 90nm gives a 50% reduction in die size, so the R520 can basically have twice as many transistors as the R420/480.
Now double the # of transistors suggest double the number of pipes would be possible, but IIRC, going fully floating point for SM3 requires ~33% more transistors per pipe, so it's not likely they'd be able to fit 32x SM3 pipes in double the number of transistors of 16x SM2 pipes. Of course, they may be able to, who knows, but IMO it's not the most likely scenario.
 
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BenSkywalker

Diamond Member
Oct 9, 1999
9,140
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I find the insinuation in your last post very insulting Rollo...























There is far more evidence of Big Foot then there is of the R520 :p
 
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nRollo

Banned
Jan 11, 2002
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Originally posted by: BenSkywalker
I find the insinuation in your last post very insulting Rollo...

There is far more evidence of Big Foot then there is of the R520 :p
Click to expand...

LOL- for real- thanks Ben!

 
Elcs

Elcs

Diamond Member
Apr 27, 2002
6,278
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The bookies will probably have a price on whether or not the R520 will be out this year or not.

Might pop down later and put a wager on.
 
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