Best gpu for a dell optiplex 960

[mechanical games]

hi, im looking for the best gpu for video rendering and 1080p low gaming without needing a new power supply for $100.
thank you. it's the mt desktop model

 

[clutchc]

Which of these Optiplex 960s is yours? https://i.ytimg.com/vi/uucnXLutX1I/hqdefault.jpg

 

[lundwed]

Which of these Optiplex 960s is yours? https://i.ytimg.com/vi/uucnXLutX1I/hqdefault.jpg

hope you are still there, i have the mini tower, the one on the far left, i have considered the gtx 750ti low progile card, but the fan is so big i m not sure it will fit, the most demanding game i play is overwatch, thank you

 

[clutchc]

Which of these Optiplex 960s is yours? https://i.ytimg.com/vi/uucnXLutX1I/hqdefault.jpg

hope you are still there, i have the mini tower, the one on the far left, i have considered the gtx 750ti low progile card, but the fan is so big i m not sure it will fit, the most demanding game i play is overwatch, thank you

According to Dell's spec sheet, The Mini Tower's PSUs both have a 240W/25 amp +12V rail. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjNmfil5fjNAhUJ7YMKHRwFAVYQFggsMAA&url=https%3A%2F%2Fwww.dell.com%2Fdownloads%2Fglobal%2Fproducts%2Foptix%2Fen%2Fdesktop-optiplex-960-technical-guidebook-en.pdf&usg=AFQjCNHMzUT1jmtcG4Ra9T2M30kNnzMj7Q&sig2=IpqtWl8GFEC-V9nSqIAt5A&cad=rja/communityserver-discussions-components-files/3514/1565.J775R.jpg
That is more than enough for the GTX 750 Ti. But the location of the PCIe x16 slot demands a single slot card.
This is the only single slot width GTX 750 Ti that I am aware of: http://www.newegg.com/Product/Product.aspx?Item=N82E16814127836
Is that the one you were concerned would not fit? If so, the card is 2.72" wide. Measure from the center of the PCIe x16 slot to the IO port obstruction next to the expansion slot. http://i.imgur.com/bGMG2NG.jpg
If it's an no-go, perhaps you can rtim back the card's shroud a bit to make it fit.