Unknown manufacturer = 750ti. It's the fastest card that doesn't need supplementary power and with a junk PSU, you want a card that sips electricity, not gulps it.
Hi maxwowo
The 660 is the better card there
http://www.hwcompare.com/17301/geforce-gtx-660-vs-geforce-gtx-750-ti/ http://gpuboss.com/gpus/GeForce-GTX-750-Ti-vs-GeForce-GTX-660
just be sure your psu has enough power to run the card ( what is your psu )
Hi maxwowo
The 660 is the better card there
http://www.hwcompare.com/17301/geforce-gtx-660-vs-geforce-gtx-750-ti/ http://gpuboss.com/gpus/GeForce-GTX-750-Ti-vs-GeForce-GTX-660
just be sure your psu has enough power to run the card ( what is your psu )
its made from an unknown manufacturer, its 500 watts
The Geforce GTX 660 requires a psu with 24A on the +12v rail and a 450W PSU minimum
you have enough wattage , is there anything written on the side of the psu a table perhaps with the amps for the +12v rail ?
Unknown manufacturer = 750ti. It's the fastest card that doesn't need supplementary power and with a junk PSU, you want a card that sips electricity, not gulps it.