My friend is interested in purchasing a new graphics card for his quite old PC, he has a 300W PSU which we determined and he has about £70 to spend. He will be buying the card from amazon.co.uk. Currently I am thinking he should get a GT 640 because that way he shouldn't need to upgrade his PSU. Also he has just 3 SATA power ports free and we are planning to purchase two of these to make the power to molex and use a spare adapter I have which goes from 2 molex to a six pin GPU connector, which is needed for the graphics card. It is makeshift but I see no reason why it won't work also he plans to play dayz, rust, cs go etc. Will he be able to play the listed games even if it is just at low?