i was on ebay and found a deal for the graphics card and i was just wondering before i bout it will the Gigabyte AMD Radeon HD 7870 2Gb fit in the dell optiplex 390
Here are some builds for that system . You will notice almost no newer AMD cards. They don't work in older Dells. http://www.userbenchmark.com/System/Dell-OptiPlex-390/1958
Here you can see where the card you're looking at falls in the overall scheme of things. http://www.tomshardware.com/reviews/gpu-hierarchy,4388.html
measure from the back to the HDD cage and get a card that's shorter. Be sure and leave extra room for power connectors if they're on the back edge of the card. Usually they're on the top.
Here are some builds for that system . You will notice almost no newer AMD cards. They don't work in older Dells. http://www.userbenchmark.com/System/Dell-OptiPlex-390/1958
Here you can see where the card you're looking at falls in the overall scheme of things. http://www.tomshardware.com/reviews/gpu-hierarchy,4388.html
measure from the back to the HDD cage and get a card that's shorter. Be sure and leave extra room for power connectors if they're on the back edge of the card. Usually they're on the top.