Those are all pcie cards marketed and sold to consumers that run on consumer boards. I bought one at a time over months whenever I find cheap used ones on ebay, always under 2k. A single card would be plenty if this was not my career and if I was not working on many things in parallel.
This whole rig cost less than the car the typical fast food worker bought with a loan to get to work.
This whole rig cost less than the car the typical fast food worker bought with a loan to get to work.