If youre looking in that range, I might as well start taking pre-orders for my M.2 accelerator since its ready. It has a 200k LE 7 series chip and 1GB of DDR3 + 4x PCIe (2.0 atm). $329 for the very fast version, $199 for the lower end (100k LE/512MB DDR3). Uses a M.2 M-Key / Nvme slot, or a $10 PCIe adapter.
which 7 series chip ? sounds nice.
There are only a handful that fit on an M.2 2280, and the most logic is in the Artix. Kintex 160 is next best.
Ive got a bunch of interested PMs Ill be responding to tomorrow as I have some obligations tonight.
The main reason I dont want to list exact hash performance is the effect of cooling. Just like an nVME what I can get on a bench with great thermals might not match performance on the mother boards, which led to a heatsink modification I need to very final numbers with.
Essentially youll be looking at 10% of a VU9P for <10% of the price