Chosen Solution

I have a tiny optiplex 770 i7 fast pc but the on-board graphics let it down, is there any way to add a graphics card ..probably externally or is it a no-go?? Update (06/05/2020) It’s a 7070. Sorry, the usff one

There is no USFF. It is either SFF or micro. If you have SFF then you can use small graphics cards. Search in electroncs shops or eBay or amazon for “half-height” graphics card’ https://www.dellemc.com/resources/en-us/… See page 5

my bad, it is a 7070 and is the usff model….no pci bus so reckon no graphics card possible ! doh!