Multi or single core?

[Hopper64]

In general, does BOS require multiple cores or a single core on a CPU to run well? There are few benchmarks to answer this. Can't find benches using flight sims. Thanks.

Edited October 8, 2018 by Hopper64

[Mitthrawnuruodo]

19 minutes ago, Hopper64 said:

In general, does BOS require multiple cores or a single core on a CPU to run well?

 

Fortunately, it's very simple. Single-thread performance is all that matters (assuming four CPU cores are present). There are some benchmarks specifically for Il-2 (results and methodology). Therefore, many people will overclock 8700K to 5 GHz and acquire very fast RAM for the best results in VR. On a monitor, CPU performance is less important because you'll be GPU-limited much of the time (depending on the resolution, of course).

Edited October 8, 2018 by Mitthrawnuruodo

[Hopper64]

27 minutes ago, Mitthrawnuruodo said:

 

Fortunately, it's very simple. Single-thread performance is all that matters (assuming four CPU cores are present). There are some benchmarks specifically for Il-2 (results and methodology). Therefore, many people will overclock 8700K to 5 GHz and acquire very fast RAM for the best results in VR. On a monitor, CPU performance is less important because you'll be GPU-limited much of the time (depending on the resolution, of course).

 

Thanks. That's helpful. I really can't get a 10 core+ CPU above 4.7-4.8gHz without so much heat that the chip throttles down. The new 9900k has solder instead of TIM between the chip and the IHS, so OCs should be much better. I have noticed stuttering unless you select high performance power in the OS before gaming in BOS even with a high end video card. This of course makes the CPU run at max frequency. Not running VR, just a monitor. Appreciate your help.

Edited October 8, 2018 by Hopper64

[Mitthrawnuruodo]

Yes, I expect the 9900K to become the ultimate CPU for Il-2. It should easily give you a few hundred extra MHz without the heat problems.

[THERION]

14 minutes ago, Hopper64 said:

 

Thanks. That's helpful. I really can't get a 10 core+ CPU above 4.7-4.8gHz without so much heat that the chip throttles down. The new 9900k has solder instead of TIM between the chip and the IHS, so OCs should be much better. I have noticed stuttering unless you select high performance power in the OS before gaming in BOS even with a high end video card. This of course makes the CPU run at max frequency. Not running VR, just a monitor. Appreciate your help.

 

Beg your pardon - so with your rig (system infos in the footer of your message?) you still encounter stutter? Can't believe this...

Edited October 8, 2018 by -IRRE-Therion

[Hopper64]

15 minutes ago, -IRRE-Therion said:

 

Beg your pardon - so with your rig (system infos in the footer of your message?) you still encounter stutter? Can't believe this...

 

 

Actually I do. The CPU does not seem to increase it's frequency automatically. I think that's why Jason recommended high performance in his Quick Guide here:

 

See number 6. In Windows set your computer power supply to use Maximum, not Balanced or Energy Saver.  

 

I had noticed this the past several months, minor stutters. Then used #6 and no issues.

BTW-I'm also a hardware nut. It's my hobby, so I'm always looking to test the next thing. I think I'm more of a hardware enthusiast these days.

[chiliwili69]

2 hours ago, Mitthrawnuruodo said:

I expect the 9900K to become the ultimate CPU for Il-2.

 

The real question here is which one of the new 9th gen series is best for IL-2 VR regardless of the CPU price.

 

9900K has 8 cores+HT --> so more heat, so less OC. but with more cache

9700K has 8 cores

9600K has 6 cores --> so less heat, so more OC, but with less cache

 

We can only determine that by knowing what is the Single-Thread performance at the maximum OC reachable.

Or people with the new CPUs running the the IL-2 test.

[Mitthrawnuruodo]

23 minutes ago, chiliwili69 said:

The real question here is which one of the new 9th gen series is best for IL-2 VR regardless of the CPU price.

 

Yes, all three of those CPUs should be fairly similar. With 8th gen, the binning of the 8600K and 8700K was basically the same. If this is repeated with the new 8-core parts, they'll be essentially identical for Il-2. It's possible that the 6-core part will have inferior binning, however. Regardless, I'm sure we'll find out soon enough.

Edited October 8, 2018 by Mitthrawnuruodo

[dburne]

44 minutes ago, chiliwili69 said:

 

The real question here is which one of the new 9th gen series is best for IL-2 VR regardless of the CPU price.

 

9900K has 8 cores+HT --> so more heat, so less OC. but with more cache

 

 

Not necessarily, at least maybe not so much it would make a difference in OC ability. It did not make much difference in my 4820k with HT on versus off.

I can tell you right now the 9900k is likely going to be in my new build I will be doing here soon.

I will likely run that chip as long as I have my 4820k which is approaching 5 years. 

Who knows how the games I play might make use of multi cores and HT in the future.

 

Edited October 9, 2018 by dburne

[Ehret]

39 minutes ago, chiliwili69 said:

9900K has 8 cores+HT --> so more heat, so less OC. but with more cache

9700K has 8 cores

9600K has 6 cores --> so less heat, so more OC, but with less cache

 

There should be an option to disable cores in the motherboard's bios, I think?

 

Pity, that Intel (or AMD) will not produce dedicated single thread high performance chips... Would confuse customers, probably, after all those "multi-everything" talks.

[dburne]

Just now, Ehret said:

 

There should be an option to disable cores in the motherboard's bios, I think?

 

Pity, that Intel (or AMD) will not produce dedicated single thread high performance chips... Would confuse customers, probably, after all those "multi-everything" talks.

 

Yes typically they do.

[Mitthrawnuruodo]

19 minutes ago, Ehret said:

Pity, that Intel (or AMD) will not produce dedicated single thread high performance chips... Would confuse customers, probably, after all those "multi-everything" talks.

 

They do, in a way. The 8086K is an 8700K with higher stock clocks and better overclocking chances. The i3-8350K is a low-budget option that retains much of the single-thread performance of the 8700K. Besides, the entire mainstream line from Intel is generally better for single-thread performance and gaming than Intel's HEDT and server lines. AMD has no chip with good single-thread performance, so there isn't much they could offer without creating an entirely new development.

 

Unless you mean chips with only one core, which would be almost useless in modern gaming?

Edited October 9, 2018 by Mitthrawnuruodo

[Ehret]

22 minutes ago, Mitthrawnuruodo said:

Unless you mean chips with only one core, which would be almost useless in modern gaming?

 

More like two but not more than four and with a small 2D display graphics build-in, only. The saved space could be put for more cache and some (not cost effective) improvements to CPU cores cooling could be welcome. All to change the usual heat/performance trade-off of 1:1 to 2:1, or more. It wouldn't bring much more speed but from I had seen folks would gladly upgrade to something offering few more hundreds of MHz at the same IPC and lower frequency of hiccups.

 

Constant low latency is much more important to VR immersion than more detailed graphics. (imho)

Edited October 9, 2018 by Ehret