What Nvidia GTX660 card for PoE on Win 8.1 64 bits?

Hello, I just returned a MSI GTX 660 graphic card to the shop because PoE was crashing every 30 seconds and there was no easy workaround neither any answer from MSI support. I am currently using a MSI Z87-G45 mobo with an i5 cpu, and all the new config has proven very stable until I introduced the new graphic card. I use the latest Windows 8.1 64 bits and want to use the latest Nvidia driver (and once stable, I won't touch the driver).

So if some of you guys are enjoying a super-stable GTX660 graphic card, please tell me which one! (which brand and exact model) I'd like to buy a new one.

That new graphic card cannot be an AMD graphic card, unfortunately, as too many free or affordable renderers only use Nvidia Cuda gear (like Blender's Cycles and Otoy Octane) - AMD OpenCL technology did not get popular with developers for some reason.

I am a bit stuck with that problem right now, so any help appreciated!
If not for me, help my level 1 templar! LOL

The following graphic cards are also of interest to me : GTX 650 and GTX 650 Ti. And the older GTX 560 / GTX 560 Ti.

And I missed that one as well : the Nvidia GT 640 rev2

Waiting for your precious answers...

Thanks !

Ok, I finally bought a PNY GTX 660 (2 Gb) and the game works fine now. It was in fact working smoothly as well on my latest i5 CPU alone (the picture is just less colorful, a bit greyish).