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I am very confused with the numerous factors taken into account when choosing graphics cards, like the size, the 6 or 8 pin connectors, the BIOS, the power requirements, etc. All I know is I have a Dell XPS 8500 desktop, it has a Nvidia GeForce GT 620 graphics card installed, and I want a used one under $100 for a game that requires a minimum of Nvidia GeForce GTX 550 Ti level of graphics card (any brand but with similar/better qualities).

Are there any other recommendations for graphics cards that best suit my computer, or is the Nvidia GeForce GTX 550 Ti fine? How about the Nvidia GeForce GTX 660 Ti? Is a graphics card that is labeled "2048MB" performing way worse than the same type of graphics card labeled with "2GB"? What does that mean, why is there storage on graphics cards?

I'm not sure how to find out the power capacity of my specific desktop computer, and whether my BIOS or the 6-8 connector pins are compatible because I have never opened any computer before to see. Also, I've heard things about Legacy vs UEFI and how graphics cards can be incompatible with older computers because they run with UEFI, so how do these graphics cards do with my old desktop?

closed as off-topic by JakeGould, Pimp Juice IT, fixer1234, Sir Adelaide, G-Man Jul 14 '18 at 3:33

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking for hardware shopping recommendations are off-topic because they are often relevant only to the question author at the time the question was asked and tend to become obsolete quickly. Instead of asking what to buy, try asking how to find out what suits your needs." – JakeGould, Pimp Juice IT, fixer1234, Sir Adelaide, G-Man
If this question can be reworded to fit the rules in the help center, please edit the question.

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You have a pcie X16 164 pin slot that you can use for a graphics card. This is your best choice. Hardware recommendations are off topic here at SU.

You would have to open the PC to see what additional power connectors you have for graphics card as they are not documented.

Here is your support page for the XPS 8500

  • So how do I find a graphics card according to that information, X16 164 pin slot? – Grace Sawyer Jun 25 '18 at 23:47
  • You don’t. All modern GPUs are PCI-E. You will have to determine the dimensions of the card your system will support yourself – Ramhound Jun 26 '18 at 0:44

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