1 hour ago, Ray Proudfoot said:

How far can your CPU be overclocked? Anywhere near the 6.0 of the i7-13900KS?

I concur the Intel looks best for me. Thanks for posting your findings.

Not much. Top overclockers get it to 5.4Ghz at most. I have enabled Precision Boost Overdrive on the BIOS to get some better speeds (now boosting to 4.8Ghz more often), but sensible overclocking is very hard on X3D chips.

I have done some additional tests after updating GPU drivers to 531.61, deleting P3D's and Nvidia's cache and enabling PBO on the Bios and observed the following:

• No significant impact on MSFS;
• On P3D, I now get about 25fps in EGGL in the flight deck in a similar scenario to the one above. The first core/thread is still significantly used, whereas all the others are sitting at 5-30% at most.
• On MSFS, the impact of AI Traffic is brutal. From 45-50Fps with ~90 live aircraft, I go to 80-90fps with Traffic off;
• On P3D, I also saw a significant increase, from 25 fps to about 45 on the flight-deck (first core/thread is still being hammered, though).

Edited April 14, 20233 yr by GCBraun

19 minutes ago, GCBraun said:

Not much. Top overclockers get it to 5.4Ghz at most.

• On P3D, I also saw a significant increase, from 25 fps to about 45 on the flight-deck (first core/thread is still being hammered, though).

Quite a bit lower than the claimed 6.0Ghz of the i7-13900KS. Still decent enough though.

The first core will always be at 100% at heavy airports. Looks like compromises will still be necessary. That’s not a problem for me. I’m happy to have fewer buildings if it means I can get more Ai.

Regarding the 4090 I can set all my graphic settings to max and it should be fine. Keeping to 30fps will also help workload but my BenQ can handle frequencies between 30 and 60 so I might see what’s possible.

Interesting thread. Would have loved to see how the 7950x3d stacks up in this comparison. 

2 minutes ago, Swe_Richard said:

Interesting thread. Would have loved to see how the 7950x3d stacks up in this comparison. 

Hello my friend, I have finished my built today with 7950x3d and 4090. I tried one scenario, I have used aerosoft ebbr with pmdg 737, tlod 200, trees and buildings high, dx12, no frame generation, no ai traffic at gate i was getting 55-60 fps at virtual cockpit. My Previous setup was with 10700k and at same scenario I was getting about 30 fps.

So I think it is worth to upgrade if you are coming from 2-3 years old cpu. But don’t forget to update your chipset driver from amd site, not motherboard page(not was latest one) and your bios. 
 
And you should ensure that your cpu are using first 16 cores when gaming, Because those cores are with high v cache ones.

16 minutes ago, Swe_Richard said:

Interesting thread. Would have loved to see how the 7950x3d stacks up in this comparison. 

Rob Ainscough has that CPU and has started initial testing.

https://forums.flightsimlabs.com/topic/32288-amd-announce-new-processors/

44 minutes ago, spitzer45 said:

Hello my friend, I have finished my built today with 7950x3d and 4090. I tried one scenario, I have used aerosoft ebbr with pmdg 737, tlod 200, trees and buildings high, dx12, no frame generation, no ai traffic at gate i was getting 55-60 fps at virtual cockpit. My Previous setup was with 10700k and at same scenario I was getting about 30 fps.

So I think it is worth to upgrade if you are coming from 2-3 years old cpu. But don’t forget to update your chipset driver from amd site, not motherboard page(not was latest one) and your bios. 
 

Sounds sweet. I am upgrading from a 5900x / 3080Ti. Looking forward to get my hands on the new parts!

38 minutes ago, Ray Proudfoot said:

Rob Ainscough has that CPU and has started initial testing.

https://forums.flightsimlabs.com/topic/32288-amd-announce-new-processors/

Oh, that was an interesting thread as well. I thought Rob had stopped completely with flight sims?

59 minutes ago, Swe_Richard said:

Oh, that was an interesting thread as well. I thought Rob had stopped completely with flight sims?

He was going to get his licence but for reasons unknown he couldn’t so a computer sim was the next best thing.

13 hours ago, Ray Proudfoot said:

This is a quick reply as I have to go out shortly. I googled “fastest CPU” and the search returned this article from a trusted site.

6Ghz out of the box for the i9-13900KS represents a 22% increase in clock speed over my existing i7-8086K. It’s possible that could be increased with overclocking.

And as you probably know the IPC (instructions per clock) will also be much greater with the 13900 vs what you have right now.  You're talking about 5 generations newer (8086K to 13900K/KS).   I remember when I bought my 8700K, and then about 2 months later they came out with the high-binned version of it, your 8086K.  I was a tad miffed.  Oh well, c'est la vie.

13 hours ago, Ray Proudfoot said:

Then there’s the difference in L1, 2 and 3 cache with the newer CPU having substantially more. That will improve performance surely?

Yes, along with clock speed and IPC improvements generation to generation.

13 hours ago, Ray Proudfoot said:

One final comment which I don’t understand. Why is the CPU draw on all tests so low? The GPU is being worked hard but the CPU appears to be idling.

Usually the reason is that people look at the overall cpu usage, and that shows as being very low, because, many of the cores actually are not being used very much.  On the other hand, a few of them are being used almost to the max.   But the overall use, which takes into account all of the cores, is relatively low.

P3D for years has threaded out its terrain resolver to many many cores now and this is good (helps prevent blurries) but unfortunately the main thread loads don't get distributed quite as well -- although now with the latest version this too seems to be improved.   But this is also true of MSFS, it tends to favor just a few cores with heavy workloads.  I guess it is difficult to get a sim-type application to use many cores, or else all of the sim programmers would be doing it?

3 hours ago, Ray Proudfoot said:

Rob Ainscough has that CPU and has started initial testing.

https://forums.flightsimlabs.com/topic/32288-amd-announce-new-processors/

If anyone can wring the best out of a 7950X3D, it would be Rob.  Will be interesting to see if the 7950X3D's *non*-vcache cores run P3D better -- I bet they will -- and this would correspond with what GCBraun has found.

The 7950X3D could be a good dual-use cpu, those who want to run MSFS can set it up to use the 3D-vcache CCD, whereas when running P3D they could turn off that CCD and run on the clockspeed CCD.

21 minutes ago, Mace said:

And as you probably know the IPC (instructions per clock) will also be much greater with the 13900 vs what you have right now.  You're talking about 5 generations newer (8086K to 13900K/KS).   I remember when I bought my 8700K, and then about 2 months later they came out with the high-binned version of it, your 8086K.  I was a tad miffed.  Oh well, c'est la vie.

That’s why I leave it for 3-4 years before upgrading. Plus my current system is to the liking of a friend who is buying it off me. In reality there wasn’t that much difference between your i7-8700K and mine.

23 minutes ago, Mace said:

Yes, along with clock speed and IPC improvements generation to generation.

Not forgetting DDR5 RAM compared to my current DDR4.

24 minutes ago, Mace said:

Usually the reason is that people look at the overall cpu usage, and that shows as being very low, because, many of the cores actually are not being used very much.

Hence why I showed cores 1, 3 and 5 in my earlier screenshot which are assigned in the [Job Scheduler] section of my P3D.cfg. I’m hoping LM will enhance this further with v6. One lives in hope. 😁

22 minutes ago, Mace said:

If anyone can wring the best out of a 7950X3D, it would be Rob.  Will be interesting to see if the 7950X3D's *non*-vcache cores run P3D better -- I bet they will -- and this would correspond with what GCBraun has found.

The 7950X3D could be a good dual-use cpu, those who want to run MSFS can set it up to use the 3D-vcache CCD, whereas when running P3D they could turn off that CCD and run on the clockspeed CCD.

But it’s not very good at overclocking. 5.4Ghz is all GCBraun could manage. No slouch but slower than the Intel. The i7-13900KS can run at 6Ghz out of the box according to Intel. That’s great for P3D.

1 hour ago, Ray Proudfoot said:

But it’s not very good at overclocking. 5.4Ghz is all GCBraun could manage. No slouch but slower than the Intel. The i7-13900KS can run at 6Ghz out of the box according to Intel. That’s great for P3D.

GCBraun clocked the *vcache* cores to 5.4.  But the NON-vcache cores on a 7950X3D can clock to around 6 ghz.   

Even default a 7950X3D's non-vcache cores clock to 5.7 ghz straight out of the box.   A 7950X3D and 7900X3D are split personality cpu's -- each CCD -- each "half" so-to-speak -- operates at a different clock speed.   Asymmetric architecture.

6 hours ago, Ray Proudfoot said:

But it’s not very good at overclocking. 5.4Ghz is all GCBraun could manage. No slouch but slower than the Intel. The i7-13900KS can run at 6Ghz out of the box according to Intel. That’s great for P3D.

5.4Ghz is what top overclockers managed to achieve using a series of different and non-straightforward tweaks. Considering that stability and practicality are more important to me, and that clock speeds are not as critical to MSFS/XP12, I have only applied minor adjustments on the BIOS to allow a couple hundred mhz gains here and there. In my tests, the highest all core clock that I saw was around 4.85Ghz, with some achieving 5.05Ghz individually…

Edited April 15, 20233 yr by GCBraun

3 hours ago, Mace said:

GCBraun clocked the *vcache* cores to 5.4.  But the NON-vcache cores on a 7950X3D can clock to around 6 ghz.   

Even default a 7950X3D's non-vcache cores clock to 5.7 ghz straight out of the box.   A 7950X3D and 7900X3D are split personality cpu's -- each CCD -- each "half" so-to-speak -- operates at a different clock speed.   Asymmetric architecture.

See my answer above regarding the first part. As for the second one, that is right, but, as far as I know, the second CCD is generally not used for games, unless you bypass that pro-actively. 

Regarding P3D, considering that it seems to be completely dependent on the first core/thread, not sure if the second CCD speed would be at all benefitial, or? Perhaps if you force it to use the second CCD first core/thread with Process Lasso or some other tool…

Anyhow, if I was a P3D user exclusively, I would only consider getting the 7950X3D due to its future upgradability. Based on all I’ve experienced with the 7800X3D so far, I would bet that a 13900KS, out of the box, would perform better on that sim. 
 

 

Which ones? All of them?

Yes. All the pictures you posted are illegible.