does cpu matter in fleunt

reza.sayareh · July 16, 2018, 08:25

hi guys , i have an intel core i7 6700k which is 4.2 ghz at stock with 4 cores,i am about to oveclock it to 4.5ghz. i am going to do some simulation on fluent which might take 1 week for each run. since i boost up the speed the voltage will go up and it will generate more heat.i was wondering if it worth over-clocking??

tnx

LuckyTran · July 16, 2018, 11:20

Personally I wouldn't overclock.

It's difficult to know whether your simulation is limited by CPU speed or RAM bandwidth. The only meaningful way to know is to do it and try. Of course you also pray you don't have any stability issues. My guess is you can get 10%-20% speedup which is probably not even worth the human effort tinkering with it.

reza.sayareh · July 17, 2018, 01:48

Quote:

Originally Posted by LuckyTran

Personally I wouldn't overclock.

It's difficult to know whether your simulation is limited by CPU speed or RAM bandwidth. The only meaningful way to know is to do it and try. Of course you also pray you don't have any stability issues. My guess is you can get 10%-20% speedup which is probably not even worth the human effort tinkering with it.

well ok tnx for the advice, by the way i am using 33 Gb of ram at 1600 speed..
and i think i wont overclock .

LuckyTran · July 17, 2018, 08:24

33GB RAM on 4 cores, I think you are probably limited by ram speed.

July 16, 2018, 08:25	does cpu matter in fleunt	#1
reza.sayareh New Member reza sayareh Join Date: Jul 2017 Posts: 9 Rep Power: 8	hi guys , i have an intel core i7 6700k which is 4.2 ghz at stock with 4 cores,i am about to oveclock it to 4.5ghz. i am going to do some simulation on fluent which might take 1 week for each run. since i boost up the speed the voltage will go up and it will generate more heat.i was wondering if it worth over-clocking?? tnx

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July 16, 2018, 11:20		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,679 Rep Power: 66	Personally I wouldn't overclock. It's difficult to know whether your simulation is limited by CPU speed or RAM bandwidth. The only meaningful way to know is to do it and try. Of course you also pray you don't have any stability issues. My guess is you can get 10%-20% speedup which is probably not even worth the human effort tinkering with it.

July 17, 2018, 08:24		#4
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,679 Rep Power: 66	33GB RAM on 4 cores, I think you are probably limited by ram speed.