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Nvidia gtx 650 2gb vs ati 7770 1gb

i have i5 2500k with 4gb ddr3 1333mhz ram and intel dh67cl motherboard and cooler master eilte 370 case with standard 420 watt psu (65% efficient )

i want to buy a gpu i have 4 options in my range

price=12,100rs
http://www.gigabyte.com/products/product-page.aspx?pid=4359#ov

price=14,300rs
http://www.gigabyte.com/products/product-page.aspx?pid=4360#ov

price=13,500rs
http://www.gigabyte.us/products/product-page.aspx?pid=4133#sp

price=14,800rs
http://www.asus.com/Graphics_Cards/HD77701GD5/#overview


i have total budget of 20,000rs for psu+gpu

please from these 2 stores help me out which psu to buy

galaxy computer:
http://galaxy.com.pk/power-supply-pakistan.html

computer zone:
http://www.czone.com.pk/power-supply-pakistan-ppt.183.aspx

thanks
3 answers Last reply Best Answer
More about nvidia gtx 650 2gb ati 7770 1gb
  1. how well hd7770 will perform on 1080p as compared to the gtx 6502gb in 1080p
    specially for the new games which are coming
  2. Best answer
    gtx650 does not have the power to properly utilise 2gb vram so there is no difference between 1gb and 2gb

    look the graph for crysis 2



    The gigabyte hd7770 does a lot better

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