I have also tested the threaded optimization off tweak. Man what a difference! I didn't have an extreme problem with performance before, but some aircraft suffered from stutters. Most of all the LES SAAB 340 and Peters A380 (even though that VC is quite.. substandard..). However after this tweak it's smooth as butter. 

 

It's funny that such an option can make such a big difference. 

 

 

Maybe we should tell Austin and Spunik about it

Same here :-)

 

X-Plane, the only sim that is so optimized, intrinsically, that we must downgrade any optimization options in our hardware / system to better run it :-)

 

LMAO!!!!  

LMAO!!!!  

 

Why is this fellow laughing so much ?

 

ROFL 

I remember that button on the old processors to work at half the clock speed because some optimized games would then run just too fast :-)

@Jcomm

 

 I remember that LOL that turbo switch. 

 

 Oh crap those XT-AT days wow. My first programming was Basic / Dbase superb all green displays. 

Yes, I remember trying to run Windows 2 on a PC-AT typing on a word processor with scaled fonts and I could type faster than the CPU/GPU could display them on-screen.  But I digress...

 

The only thing I've done on my system is to turn threaded optimization OFF for X-Plane only (not General) in the regular nVidia control panel.  I've played a bit with it and still don't know if it matters on my system, which is very fast anyway.  What I have noticed that I find a bit strange, is that when completing a flight and then switching aircraft to begin another, sometimes the VRAM loads up and pulls framerates way down as it (apparently) caches back to RAM.  It's as if the previous aircraft data isn't purged properly, or perhaps there is an overlap conflict with plug-ins used by the aircraft.  Strange.  My GPU is a superclocked GTX970 with 4GB VRAM.