What graphic cards can i fit in a Dell Optiplex 9020 Minitower CPU?

Solution
According to the specs, the the Optiplex 920 Minitower comes with a 290 watt power supply: http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/Dell-OptiPlex-9020-spec-sheet_Final_V2_G13001038.pdf

According to the following YouTube video, the 920 Minitower has space for a two slot graphics card: https://www.youtube.com/watch?v=8SYIexMez2g

Therefore the only issue is whether a double fan model of a GTX 1050 TI can fit in the space (length-wise) that you have available. I do not know the answer to your question. You'll need to tape measure the space inside your case. A single fan GPU will surely fit (below), and is $15 cheaper. Personally I wouldn't want to pay above $150 for a GTX 1050 Ti, so I'd buy the...
According to the specs, the the Optiplex 920 Minitower comes with a 290 watt power supply: http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/Dell-OptiPlex-9020-spec-sheet_Final_V2_G13001038.pdf

According to the following YouTube video, the 920 Minitower has space for a two slot graphics card: https://www.youtube.com/watch?v=8SYIexMez2g

Therefore the only issue is whether a double fan model of a GTX 1050 TI can fit in the space (length-wise) that you have available. I do not know the answer to your question. You'll need to tape measure the space inside your case. A single fan GPU will surely fit (below), and is $15 cheaper. Personally I wouldn't want to pay above $150 for a GTX 1050 Ti, so I'd buy the graphics card below.

EVGA GeForce GTX 1050 Ti SC GAMING, 04G-P4-6253-KR
$149.99 ($4.99 Shipping)
http://www.newegg.com/Product/Product.aspx?item=N82E16814487291

If your budget isn't that high, then you could go on Ebay and buy a used GTX 750 Ti for $60 - $75. Don't forget to sell your old graphics card to recoup some of your money.
 
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