I saw some tesla k80 graphics acceleration cards they have no display port there for helping workloads are these any good for tensorflow AI building

Price:140$ Specs

Cuda cores: 4,992

Core speed: 562-875 per card

RAM 24GB

RAM speed: 480GB/s

This is a 2 pci slot card basically 2 cards in 1 No cooling included (I got a plan for that)

Display card will be my old gtx 950