CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Hardware

9700k vs 9900non-k for mechanical&cfd

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By flotus1

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 26, 2020, 14:54
Question 9700k vs 9900non-k for mechanical&cfd
  #1
New Member
 
Join Date: May 2020
Posts: 1
Rep Power: 0
mft1997 is on a distinguished road
Hi folks,
Iím configuring a Lenovo workstation for ANSYS mechanical and cfd. Which CPU will perform better, i7 9700k or i9 9900non-k. I donít plan to overclock. Both are 8 cores, same all core turbo frequency at 4.6ghz, i9 has hyperthread, the i7 doesnít.
i7 has 3.6ghz base frequency, i9 has 3.1ghz. Not sure if this will make any difference.
i7 is 95W TDP, i9 is 65W TDP, If they all run at full load, will the non-k version runs cooler than the k version? Price isnít a big factor here.
Iím not sure if hyperthread will make ansys run better or worse or no difference, Iív seen different people give different opinions. If I get the i9, do I need to disable the hyperthread?

Thanks
mft1997 is offline   Reply With Quote

Old   May 26, 2020, 16:55
Default
  #2
Senior Member
 
flotus1's Avatar
 
Alex
Join Date: Jun 2012
Location: Germany
Posts: 2,501
Rep Power: 35
flotus1 will become famous soon enoughflotus1 will become famous soon enough
With the 9900, you will probably end up disabling Hyperthreading anyway. So the more cost-efficient of these two options is the 9700k.
And yes, without overclocking, which you probably can't do anyway on such an OEM system, a 65W TDP CPU from Intel will run cooler than a 95W SKU of the same generation. Note that I don't see a benefit in "running cooler" itself.
As a heads-up: Intel has already released the "10th" generation of their mainstream CPUs, with lower prices. So you will be paying more for older hardware.
Heads-up number two: these mainstream CPUs are not the best choice for CFD and FEA. Intels CPUs for socket 2066 outperform them thanks to quad-channel memory, and the hardware itself does not cost much more. Markups for OEM systems will of course make them more expensive.
iamrahul likes this.
__________________
Please do not send me CFD-related questions via PM

Last edited by flotus1; May 28, 2020 at 12:37.
flotus1 is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 20:45.