Thanks for your reply. I did read the sticky - I thought I´d given enough information about my equipment for the question I asked, but it appears insufficient, so I do indeed apologize!
The PSU is a 500 Watt one, and there are 4Gb of 1866 Mhz Memory.
I suppose I´m right in supposing that a 1Gb Gforce 210, despite its 1 Mb memory, will not be of any use as it only has 16 graphic cores and DDR2 memory.
From your reply, reading between the lines, I deduce that a 1Gb DDR3 Graphics card will work together with the APU graphics and increase performance. I´m not looking for a spectacular super-expensive top range graphics add-on option.
Thanks again, and with kind regards,