Set AffinityMask=4095 can make FSX Using 12core（980X HT）？How to set 980X's AffinityMask for FSX?Thanks

Try this: disable HT and 4 of 6 cores. then test FSX.On just 2 cores mine performs the same. FSX doesn't scale well with multiple cores (and HT does nothing for FSX)

Set AffinityMask=4095 can make FSX Using 12core（980X HT）？How to set 980X's AffinityMask for FSX?Thanks

Try this: disable HT and 4 of 6 cores. then test FSX.On just 2 cores mine performs the same. FSX doesn't scale well with multiple cores (and HT does nothing for FSX)

Thank you sir,and I found when I enter FSX game，FPS very low，about only 4-14FPS sometimes screen is flashing，it maybe case by the HT，I will disable HT and try again.Sorry about my bad English.

that's a hell of a machine, so you should be seeing much better performance. Do you have SP1 & SP2 or Acceleration installed?Without SP1 FSX will run in a single core.Also try the BP=0 tweak for increased performancedon't hesitate to ask. there's a lot of people here who will be glad to help