guys shall I take a GTX580 with 1.5 GB or 3 GB RAM? What about the offered OC versions; does it make any difference or is it just waste of money? I do not play any ego shooter games on the PC. It would be for FSX only.
Btw. I purchased a i7970 in the mean time and a SSD and can feel the difference
I'd say neither.
I know a LOT of people who have NOT had success with any of Nvidia's Fermi-based cards, and that includes me. Drivers stop responding, fail to boot, black screens, the whole lot.. See the now 92 page thread on NVidia's forum about it.
http://forums.nvidia.com/index.php?showtopic=187401These issues have been going on for a year or longer, and still no real solution for it. I had this occur on my GTX460 1GB 31 days out, so I couldn't return it. People who had RMA'ed their card ended up getting the same card back from another user who RMA'ed their card for the same reason, or got theirs back with a response saying 'it works fine for us, it's your hardware', when the same hardware works on another card built by them.
Personally, I cut my losses and bought the Radeon 6950 2GB:
http://www.newegg.com/Product/Product.aspx?Item=14-102-914&nm_mc=EMCPB-042011&cm_mmc=EMCPB-042011-_-PB-_-Item-_-14-102-914Worked solid with the same hardware I was told to replace, and haven't looked back. Future-proof as well, as you can unlock it to a Radeon 6970, let alone over/underclock it. The dual BIOS on it helps greatly with that. So to get a 2GB Radeon 6970 at the 6950 price is a no-brainer.
Good luck with your purchase, but IMHO, NVidia kinda blew it with this one.
BL.