What is the current best processor for P3D v4 without budget consideration?

[westman 257]

8 hours ago, Bert Pieke said:

Why not dedicate the first physical core (0,1) to Windows and 2-8 for P3D?

P3D will put most of the load on the first core you give it.. and that should not be a core you are sharing with the OS, if you have this much to work with..

7980XE 18  physical cores run HT off core 0 for win and second  physical core for P3D main tread core 1.

with HT on i have 36treads  first physical core (0,1) .

Edited March 8, 2018 by westman

[GSalden 4,691]

Today I ordererd GSkill Ripjaws 4X 8Gb 3200Mhz Cl14 

Should be more and fast enough icw the cpu and mobo 

[SteveW 1,792]

Have they come through the letterbox yet?  I'm looking forward to hearing how this goes Gerard.

[GSalden 4,691]

5 hours ago, SteveW said:

Have they come through the letterbox yet?  I'm looking forward to hearing how this goes Gerard.

Hi Steve , 2 working days delivery time , so I guess next tuesday.

Tomorrow I am going to Backup important C drive directories and files. Then take out the current mobo and install the new one with my current GSkill 2400 MHz modules. So I can install Windows 10 , AV etc.

Sunday P3D and some addon programs. I hope to have the Sim backup and running next sunday.  All addons and all programs might take up the next couple of weeks...

https://www.gskill.com/en/product/f4-3200c14d-32gtz

[GSalden 4,691]

On 7-3-2018 at 1:27 PM, westman said:

on the 7920x the nr3 core was best and had that for P3D main and the rest of cores at 4.9ghz with less vcore

the 7980XE do 5ghz on all cores  there i leave core 0 to win and 1-10 for p3d  the rest for other work.

now you can test wich cores that clock best and adjust the vcore and clock for each core , lot of work.

asume that core5 is your best, 5 to 13 for p3d you can easy have the best core at +4.8-5.0ghz (for P3D main tread)  with higher vcore 1.25-1.27 then the rest at 4.6-4.7 1.12-1.17v with less heat and powerdraw

 

Did you delid the 7980x ?

My 7940x is default at this moment. I do have a LCS . The intention is to run the main P3D core at 4.7-4.8 and the others at 4.5. 

If this can be done without delidding I would be very satisfied.... 

I just read that If you use the Gigabyte Easytuner utility with Heat control Off you will see the maximum the cpu/mobo combo can get. A 7900x will go up to 5.0-5.1 then.

Then I could look for the settings and set them manually ...

[westman 257]

23 hours ago, GSalden said:

Did you delid the 7980x ?

My 7940x is default at this moment. I do have a LCS . The intention is to run the main P3D core at 4.7-4.8 and the others at 4.5. 

If this can be done without delidding I would be very satisfied.... 

I just read that If you use the Gigabyte Easytuner utility with Heat control Off you will see the maximum the cpu/mobo combo can get. A 7900x will go up to 5.0-5.1 then.

Then I could look for the settings and set them manually ...

That goal is posibble without delidd 

Try to have minimum vcore at 4.5ghz cores,  you need  Good cooling 

My 7920x and 7980xe  is delidded,  nothing to recomend to do if you  not delidd  before , risk to hurt the components close to the chip,  compared to skylake coffelake the I9  is very very dificult to delidd.

The 7920x do 5.0/4.9ghz with h110 temps up to 75_80c  stresstest  and 60-65 P3D 

7980XE i run with Custom loop monoblock with vrm cooling at 5.0ghz in P3D temps not higher then 65c 

Can run the 7980XE 5.1 on P3D main  tread if i want,  the 7920x clock approx 100mhz higher with same cooling.

[GSalden 4,691]

Thanks for the info.

I have a Thermaltake GT10 LCS case , so with a Bigwater 850 liquid cooling system. Only replaced the waterblok for a better one...

Yesterday I cleaned the inside of the waterblock and replaced the cooling fluid.

 

 

[dazz 69]

On 3/3/2018 at 10:34 AM, GSalden said:

When Rob A tried his 7900 it showed 80% more fps than the 5960 he had . The 7900 was running just 200 mhz faster , but the big difference was the L3 cache.

I'm skeptical about that. Can you please provide a link to those tests? 

[vortex681 806]

An interesting comparison of CPU instructions per cycle (IPC) at a normalized clock speed: https://www.guru3d.com/articles_pages/intel_core_i5_8600k_processor_review,26.html

[GSalden 4,691]

21 hours ago, dazz said:

I'm skeptical about that. Can you please provide a link to those tests? 

 

[dazz 69]

1 minute ago, GSalden said:

 

Thanks Gerard

[SteveW 1,792]

The first graph shows a sawtooth the entire flight, fps fluctuating back and forth all the time.The second graph is not fluctuating as it should look. It seems the first graph shows a VSync error and would exhibit half fps in this state. It's possibly an undocked panel or NVidia CP profile error. Always Make sure the NCP profiles are defaulted before making tests.

[SteveW 1,792]

...looking at the first graph, I've seen plenty of examples like this, the fps is clearly hopping between two frequencies almost at alternate frames. Could be vsync-ing at 30 then going unlimited on alternate frames or another thing could be a SimConnect app using the frame by frame event and hanging it momentarily or even a problematic dll addon which sits in the game loop.

[westman 257]

On 2018-03-13 at 12:52 AM, dazz said:

I'm skeptical about that. Can you please provide a link to those tests? 

wen i run 7980XE and 7920x both at 5ghz it have the same fps as my 7700k at 5.1ghz then at 5.3ghz the 7700k have little higher fps.

the loadtimes ar much faster on the I9.

I have not seen any 85% gain to my old 5960X did a fast test more like 20-25% mostly that 300mhz and the IPC gain from Skylake.

[SteveW 1,792]

Big gains of fps are generally the result of fixing a problem. Gains from increasing clock and choosing CPUs with more instructions per cycle are generally smaller and incremental. 80% is a big yellow flashing lamp with klaxons.