planning display adapter change

hi
I am newbie with hashcat.
at moment I have Geforce 8800 GTX

since cudaHashcat no longer support that, I have been planning to change it to someting else
I am not getting brand new, so I have to settle for used ones. I have done some research on different cards
nvidia and cuda cores and radeon + streaming prosessors. I am not sure is that correct comparison/evaluation value.
I would really value your opinion what of following I should go for.

so I choises are following
Nvidia Geforce 750 GTX (not ti)
Nvidia GTX 285
Radeon HD 4870
radeon HD 4850

I have dual boot machine with kali linux and windows 8.1
I have read that radeon works better on linux than nvidia.
but those two consume more power than those nvidia cards.
and nvidia produces less heat since they are newer and are manufactored 23nm technology while radeon 55nm
radeon 4870 has more shading units but floating point calculation is better with GTX 750

750 should be supported by nvidia, so that would solve cudahashcat problem with 8800.
then again if radeon works better and I would be doing hashcat calculation in linux side.
radeon has more prosessors.
radeon
800      vs 512 prosessors.
155W vs 50 W