Tesla C870 introductory price is $650 and
Tesla D870 introductory price is $4200.
AFAIU the D870 is basically built from 2 * C870 + a small board + a box + a Power Supply.
I then can’t really understand the D870 price level, in comparison with the C870
(* 2 = $1300).
Can I instead insert two C870 cards in a compatible board and get the same throughput?