of course they all can do double, but at 1/24th of the speed of single. (1/32th in maxwell) they use a GK104 based tesla, i.e a "dual GPU" GTX680, so it has no

of course they all can do double, but at 1/24th of the speed of single. (1/32th in maxwell) they use a GK104 based tesla, i.e a "dual GPU" GTX680, so it has no real double precision. unless you consider 2x 95GFlops noteworthy.