I really feel like a complete fool not being able to figure this and for the constant flip-flopping on this subject, but I just made the decision tonight to return or sell the GTX570 I bought a couple weeks ago. I thought I had it figured out by increasing my CPU overclock but I've discovered more situations now where the 570 just chokes and the old GTX260 is fine. Was doing experiments around default KATL in the NGX earlier tonight and I was seeing it drop into the single digits with the 570. Reinstalled the GTX260 and it barely budged off the 40FPS limit in the same situation. I don't know if it's the driver, some sort of weird issue specific to my system or what, but I obviously can't have this happening during NGX testing.Sad to have to get rid of it because it's an amazing card in any other game... more upset with myself for not being able to figure this out though. Guess maybe I don't know as much as I thought...Newegg wants to charge me a $60 restocking fee to return it - if anyone is interesting in giving the card a shot, I'll sell it for $340 shipped. Nothing at all in the box was opened except for the card itself. EVGA's support verified there's nothing wrong with the card - it scores perfectly fine in all the normal video card benchmarks etc.

Man now you have me second guessing upgrading. I've had my eye on the GTX 570, and getting rid of my GTX 260. I'm positive that 570 will outperform the 260. It has to be a driver issue.

PM'd

Did you delete your fsx.cfg after you installed the GTX 570 and after you installed drivers for the GTX 570? Do not use the drivers that Win7 installed, go to Nvidia's website and get the latest GTX 570 drivers from there.You should let FSX build a new fsx.cfg after you install a new video card to you can start with a clean slate. Any tweaks that you had in your old fsx.cfg may impact the performance of your new GPU.

Yes , Give a last chance to your 570::Thinking: Delete you FSX.cfg and let FSX rebuild it, and don’t add any tweaks to that(such as BP or RejectThreshold ….) , maybe just adding Highmemfix is OK.

Ryan I am having the same low frame situation with my 580... but then again my 285 also had low frames. I wonder if I am just pushing the sliders too far right, and maybe some fsx config tweaks are actually hurting more than helping?

Ryan - Have you checked your PSU? I'm assuming the 570 uses the same power as the 580 so it needs 42A on the 12V rail. I would think an overload would cause a system crash but it's worth a look.Vic

Ryan - Have you checked your PSU? I'm assuming the 570 uses the same power as the 580 so it needs 42A on the 12V rail. I would think an overload would cause a system crash but it's worth a look.Vic

+1 Sounds like corrupted drivers or a PSU issue Ryan, however you might have a defective card, though it happens rarely.

I've tried all that stuff guys (was in a different thread) - I replaced the PSU, rebuilt the CFG many times, tried a bunch of different things.I'm making one last ditch effort here by reformatting my system and clean installing Windows and FSX with the 570 in from the start... if it's still slow after that, then it's gone.I'm considering doing the EVGA Step Up to get a 580 now too instead of selling the card... got some extra spending money here today.

I've tried all that stuff guys (was in a different thread) - I replaced the PSU, rebuilt the CFG many times, tried a bunch of different things.I'm making one last ditch effort here by reformatting my system and clean installing Windows and FSX with the 570 in from the start... if it's still slow after that, then it's gone.I'm considering doing the EVGA Step Up to get a 580 now too instead of selling the card... got some extra spending money here today.

You will luv it! Crank it up to about 875 core and you are ready to rock.jja

SUCCESS!Reformatting fixed whatever was wrong completely! The sim is insanely smooth now - currently cruising over southern California in a very late NGX alpha at FL320 and I'm getting 80FPS in the VC and 150+ in spot view (FPS unlimited, no tweaks or limiter have been applied yet). Sim is maxed, all the big scenery addons + 100% UT2 traffic.I really wish I knew what the heck caused this - must be something deep in the bowels of the Windows hardware subsystem. I'll be reformatting and clean installing whenever I do video card upgrades from now on for sure.Sorry to have caused anyone to think there was a problem with the 570 - there's not, it's blazing fast now. I have a huge grin on my face just watching it haha!

Thanks Ryan :-( Now I want one too! :-)Glad to hear everything worked out fine in the end.

Great to hear Ryan, as I was considering that card for a new rig to replace my now prehistoric Q6600 with the 980gtx.I was going to try and build one for myself for the first time, but decided to wait and see some reports on the sandy bridge and all.I also hope your testing goes flawlessly

This makes me even more convinced that FSX performance has more to do with the layout of the entrails of a chicken, or the way the stars are lined up, or what the tea leaves say than it does for any logical or rational processes that can be scientifically accounted for. All those who agree put your hands up!Kind regards,

AMEN Stephen!!!Glad you're rocking along again Ryan!Vic