TROUS3RS :
Yes that is the machine. The amount of RAM is 4gb. As for budget i'd hope about £150, preferably nearer to £100 as i dont mind buying used.
Thank you for helping me
Edit: So do you think the gtx 750ti would be suitable for my needs? Is there anything better that still wouldnt require a connector? What wattage PSU do you think I should get if I wanted powerful card requiring pin connectors?
Hello , for 150 pounds , your options are like this :
1- GTX 750 ti only .. around 110 pounds
2- 430-550 watts power supply and GTX 950 new not used , around 130-150 pounds
3- 550 Watts power supply and a used GTX 970 around 160-180 pounds if lucky to find cheap used GTX 770
any ways , this is a good power supply for you :
the 550watts power :
at Lambda tek :
http://www.lambda-tek.com/XFX-P1-550S-GREN~sh/B1978298&origin=skinflint7.8
at Aria PC :
http://www.aria.co.uk/Products/Components/Power+Supplies/Non-Modular+650W+or+less/XFX+Core+System+Builder+550+Watt+80%2B+Bronze+ATX+Power+Supply+?productId=63631&source=skinflint
this is a very good powersupply that gives 44A on 12V and comes with 5 years warranty.
The 430 watts power : same series 10 pounds cheaper
http://www.lambda-tek.com/XFX-P1-430S-XXB9~sh/B1999395&origin=skinflint7.8
http://www.aria.co.uk/Products/Components/Power+Supplies/Non-Modular+650W+or+less/XFX+430+Watt+80%2B+Bronze+Computer+ATX+Power+Supply+?productId=63630&source=skinflint
I recommend to go for the 550 for the future use.
now comes the VGA cards :
the GTX 770 the best thing to get used , you need to look in Ebay for the best deal , it mite take time ,
here are examples :
1-
http://www.ebay.co.uk/itm/Gigabyte-GeForce-GTX-970-G1-Gaming-Graphics-Card-4GB-GTX970-/111764943969?hash=item1a05b5b461
2-
http://www.ebay.co.uk/itm/MSI-970-GTX-4GB-White-Graphics-Card-1-month-old-with-warranty-/141767302971?hash=item2101fd5f3b
if you are lucky in ebay you can buy GTX 970 for 120-150 pounds used.
also can look for GTX 770 used.
now if you dont want used , then the GTX 950 , get it from the same store you will buy the power supply from
Lambda or Aria PC .. so you dont have to pay 2x shipping costs.
GTX 950 at Aria PC :
http://www.aria.co.uk/Products/Components/Graphics+Cards/NVIDIA+GeForce/GeForce+GTX+950/?x=12&p_order=price_asc&p=cF9zdHlsZT0mcF9wcm9kdWN0c1BlclBhZ2U9Jg==
there are 2 kinds of GTX 950 , short ones with 1 fan , and longer ones with 2 fans.
I want you to get a ruler and measure inside your dell the max length of VGA card you can install and compare it to the length of the card you want to buy . read the specs about the length of the cards in the site. the short will fit 100% the long not sure.
tell me what you think so we complete it together,