plz suggest 5k graphics card
go for the
XFX 9600GSO 768MB DDR2 @ 4.2k. Although this card is equipped with DDR2 memory, rather than GDDR3 memory, it performs better than the other 9600 cards. Because this is a
special edition card equipped with 96 stream processors compared to the 64/48 stream processors of the other 9600 cards. It has been selected the Best buy low end card in the last digit card review.
For AMD go for
Palit HD4670 512MB GDDR3 SUPER @ 4.5k. in directX 10.1 games it has slight benifit over the other cards.
does ddr2 and ddr3 ram graphics card make huge difference?
If you are having the same GPU vertion, then there may be a noticable performance gap, if you are using a slower memory.
Graphics cards are normally equipped with GDDR memory, they are different than ordinary DDR memory. For example GDDR3 (graphics DDR)memory is not same as high speen DDR3 memory.
GDDR3 is based on DDR2 memory architecture, but having significant less latency (timespan between a request and completion of it),
low power and heat dispersal and high speed than that of ordinary DDR2 memory.
GDDR memory is costly than the normal memory. Currently some cheaper cards are made to use normal DDR (2 or 3) memory rather than GDDR2 or GDDR3 memory. They will have less performance.
It may looks like that I'm contradicting my suggestion of 9600 GSo DDR2, but remember, memory is not only the thing. count of stream processors inside a GPU is a bigger factor.