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Why is there no GDDR4?

post #1 of 12
Thread Starter 
All the graphics cards I see are GDDR2, GDDR3 or GDDR5. Whatever happened to GDDR4?
    
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post #2 of 12
i believe some of the ATI 4xxx series had GDDR4 didnt they?
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post #3 of 12
GDDR4 is based on DDR3 SDRAM technology and was intended to replace the DDR2-based GDDR3, a goal it could not achieve.
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post #4 of 12
ATI 3870 used GDDR 4 I still have one... some slower 4xxx cards also used it, but now its phased out, high end parts use GDDR5 lower end use cheaper memory
Edited by Grobinov - 2/4/11 at 12:33am
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post #5 of 12
At the crossroads of GDDR3 and 5 it was realized that 5 was far higher in performance than 4, while being nearly the same cost, and GDDR3 was far cheaper to produce. The cost effienciny never caught on with 4, and by the time it did, 5 is already the set standard
     
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post #6 of 12
Thread Starter 
Quote:
Originally Posted by captain_clayman;12255873 
i believe some of the ATI 4xxx series had GDDR4 didnt they?

Ive seen a few GDDR4 cards, but on the egg the status is "deactivated." They don't produce them I guess.
    
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post #7 of 12
There was GDDR4.

http://en.wikipedia.org/wiki/GDDR4

^There it is biggrin.gif
    
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post #8 of 12
4xxx series shouldn't have GDDR4.
IIRC, only the 2xxx and 3xxx series have GDDR4, on the 4xxx series, they moved to GDDR5.
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post #9 of 12
Quote:
Originally Posted by andynolife;12255894 
4xxx series shouldn't have GDDR4.
IIRC, only the 2xxx and 3xxx series have GDDR4, on the 4xxx series, they moved to GDDR5.

There were some experiments like this and some slower cards had it but you couldn't really find them after a while...
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post #10 of 12
Quote:
Originally Posted by Grobinov;12255914 
There were some experiments like this and some slower cards had it but you couldn't really find them after a while...
Something new everyday wink.gif, and that's an ugly card with no CF connector.
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