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[ABT] Nvidia uses GDDR5, Finally !! - Page 3

post #21 of 32
Quote:
Originally Posted by hdmyg85 View Post
This clock projects the time, date, or temp on the wall or ceiling some people call

it a ceiling clock but I call it a digital projection clock. I got the black one because at the time that was the only color
they had. But now they have them in black and also in white.
holy spam batman!!

ok on topic: does gddr5 have higher latencies than gddr3. sort of like ddr2/ddr3
post #22 of 32
Quote:
Originally Posted by AN HERO View Post
No, nVidia/ATI's GPUs at their current state have little use for the majority of server stuff.


Not even Larabee is going to help out.
not yet but i am sure even the first gen 8800 series will be useful once that "thing" is developed.. (cant remember its name etc.. like cuda but universal ati/nvidia/etc and open source)

we aren't waiting on hardware for it to be useful in a server environment (as much), but software to let code run on the cards (such as php/mysql)

only downside of using it once its developed is vram IMO 2 gigs would be a must, or multi card..
    
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post #23 of 32
What do you mean "finally"
how long has gddr5 technology been out? or even leaked??
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post #24 of 32
Quote:
Originally Posted by killerhz View Post
Looks like nvidia wants the Ol'Performance crown once again. ATI cut them and they are bleeding. I think that they will strike back strong but ATI has some killer tech on the horizon.
You realize that ATI and Nvidia are businesses not Lord of the Rings character right?
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post #25 of 32
Quote:
Originally Posted by BlackHoleSun View Post
Not to nitpick, but what you wrote isn't quite right.

1. Nvidia never used GDDR4.
2. If you are talking about the 280 GTX, the 512 bit bus and GDDR3 doesn't nearly hit the memory bandwith of GDDR5 on a 256 bit bus.
3. GDDR5 also does two operations per clock.

GDDR5 is definately a better alternative than GDDR3.

As to if Nvidia uses inferior parts, it is just that they taped out GT200 to use GDDR3, thats all.
At stock GTX 280 memory bandwidth is greater that on 4870 and it is fact, dunno tho when OCed.

As for GDDR5 doing 2 extra operation per clock, that where all these speeds are coming from. Base clock on GDDR5 isn't all that high, but effective clock is 4 times faster due to it's nature of being DDR and 2 extra operations per clock. (Correct me if i'm wrong, but that's how i understand it after reading some reviews of GDDR5).

And as for GDDR5 + 256bit being better than GDDR3 + 512bit. It might be cost wise, it might not be. Performance is about the same. Unless we see a hard numbers of actual cost of both combinations it's just a speculation.
Edited by Nowyn - 12/26/08 at 6:01am
post #26 of 32
Quote:
Originally Posted by AN HERO View Post
Not even Larabee is going to help out.

Quote:
Originally Posted by Cod2player View Post
You realize that ATI and Nvidia are businesses not Lord of the Rings character right?
post #27 of 32
But SRSLY.


Until you tell me how the hell ordinary (non HPC) apps are supposed to use SIMD units, I'm going to give you that blank stare.
    
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post #28 of 32
Quote:
Originally Posted by Cod2player View Post
You realize that ATI and Nvidia are businesses not Lord of the Rings character right?
PWND!!
on topic: finally nvidia is moving to GDDR5 ... its been a while
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post #29 of 32
Quote:
Originally Posted by Nowyn View Post
At stock GTX 280 memory bandwidth is greater that on 4870 and it is fact, dunno tho when OCed.

As for GDDR5 doing 2 operation per clock, that where all these speeds are coming from. Base clock on GDDR5 isn't all that high, but effective clock is 4 times faster due to it's nature of being DDR and 2 operations per clock. (Correct me if i'm wrong, but that's how i understand it after reading some reviews of GDDR5).

And as for GDDR5 + 256bit being better than GDDR3 + 512bit. It might be cost wise, it might not be. Performance is about the same. Unless we see a hard numbers of actual cost of both combinations it's just a speculation.
GDDR5 does 4 operations per clock. Its stock 900MHz X 4 = 3600MHz effective. Because of this it has effectively twice the bandwidth for the bit.
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post #30 of 32
Thread Starter 
Quote:
Originally Posted by uberjon View Post
not yet but i am sure even the first gen 8800 series will be useful once that "thing" is developed.. (cant remember its name etc.. like cuda but universal ati/nvidia/etc and open source)
I think you are talking about OpenCL
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