I need to buy best ddr3 graphics card for gaming under 8 k rs or 132 $ which can run on 450 W psu of intex i am having 4 gb ram, intel core 2 duo 3.0 ghz sooooo need some suggestions on graphic card....
Yes, why not GDDR5? You can get a GTX 750 with 1gb of GDDR5 for $110. If there is some reason that you have to have GDDR3, then there isnt really that much more then the GT line of cards.
I think my pc can't support gddr5 as my motherboard is gigabyte H61/P61 micro atx and intex 450 W psu
Your motherboard can indeed support ddr5 memory. That is, GDDR5 memory. DDR3 and GDDR3 are different. One is for graphics. You can support a GDDR5 grapgics card