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[TR] ATI R770 to have 800 sp? - Page 2

post #11 of 59
G94 with 64 stream processors performs as good as RV670 with 320 stream processors
post #12 of 59
So I was right, AMDs shaders run at the speed of the core, while nvidias run much higher. For those who still don't understand it, think of 100 nvidia shaders @1400mhz. It would take 200 AMD shaders running with the core at 700mhz to equal that. (that is in NO way accurate, just an example.)
post #13 of 59
lol, why dont they make gpu a thin strip running vertically across the board (north-south) so that they can cool it easier and have more room for more gates? just an idea, but in my sumwhat limited experience with cpus' they could sure spread the caches out as well? then the memory could be split up easier as well. just a random thought that popped into my head
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post #14 of 59
Quote:
Originally Posted by Mhill2029 View Post
I was talking about performance against Nvidia. ATI uses more than double what Nvidia uses and still Nvidia take the lead. Bizarre...
http://www.bit-tech.net/hardware/200...n_hd_2900_xt/8
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post #15 of 59
Quote:
Originally Posted by metala View Post
You know that ATI's shaders are scalar?
Nvidia's SP's are scalar, ATI's are 5-way vector. In truth, RV670 only has 64 SP 5-way vector units. 5*64=320.
post #16 of 59
Quote:
Originally Posted by Pheatton View Post
I think they really need to go back a try to find out why nVidia with less SP's can have more performance. Then go back and add all those SP's.
as far as i know. nvidia cards usually do more ROPs than ATI cards but have fewer SP's. ATI cards are the opposite, if they could have those 800sp's then have the high clock speeds like nvidia has, then they would surpass them by alot.

someone correct me if im wrong in my stament.
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post #17 of 59
So 800 unified shaders = 160 stream processors?

Using the 800/5 method.
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post #18 of 59
guys, they really aren't comparable like this, the specs don't matter so much as how it actually translates into real life performance
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post #19 of 59
I heard it was actually over 9000.
    
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post #20 of 59
Quote:
Originally Posted by opty165 View Post
as far as i know. nvidia cards usually do more ROPs than ATI cards but have fewer SP's. ATI cards are the opposite, if they could have those 800sp's then have the high clock speeds like nvidia has, then they would surpass them by alot.

someone correct me if im wrong in my stament.
Thats kinda changed a bit. The 8800GT/GTS uses 16 ROPs (vs 24 for 8800GTX/Ultra) though the G92 cards use more TMUs with 56 for the GT and 64 for GTS. The ATI 3870 uses 16 ROPs and 16 TMUs (3870x2 is 32/32).
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