I'll try to test with default 737 viewing overwing, i think it's excellent idea. All my tests is with NGX virtual cockpit view, becouse that i'm using most of time, NGX and Maddog. All that fps i've talked above is with VC NGX at aerosoft EDDM and Fly Tampa LOWW, i forgot to mention that.

a 100% stable rig does not mean FSX will run without crashing, some times you need a little more Vcore (on a 100% stable rig) just to make FSX crashes free as I tested it myself severals times.

 

This is a very important point. Stress test stable does not guarantee a specific application will be stable. This also speaks to the point not to install add-ons with the comp oc'd.

@4.8 and 4.9GHz i have 30fps, but @4.9 i have no stutters. So, i assume that i have better fps @4.9 and that probably means smoother fsx, less stutters. I don't know if i explained well, but this is how i test fsx performance

 

I just noticed the same exact thing. Going from 4.8-4.9 bumped my FPS from 23-25 with stutters to 27-30 perfectly smooth at FSDT JFK. I am running at 1.4volts... how about you?

I just noticed the same exact thing. Going from 4.8-4.9 bumped my FPS from 23-25 with stutters to 27-30 perfectly smooth at FSDT JFK. I am running at 1.4volts... how about you?

I'm running 4.9GHz in offset mode, which means 1.4vcore most of time with fsx. It goes sometimes to 1.408 max. This is only with fsx. When stress testing, it goes to max 1.44vcore. But i have air cooler, noctua nh-d14. You can have lower vcore if you have water cooler or better

When stress testing, it goes to max 1.44vcore

 

I hit ~1.38 in P95 and ~1.41 in IBT. Thankfully, temps where only in the high 70s and low 80s with IBT. P95 only sends my temps to the mid 60s.

I had good performance at 4.7 and 4.8GHz, but fps went down on airports(more than 3fps which is not good and can cause stutters)and i had stutters when T.O. And landidng, at most important parts of flight. From 4.8 to 4.9GHz it was a huge difference for me, a couple of fps gained which means less fps variations(fps ramain locked at 30 - 99% of time)=less stutters(almost gone). Overclocking is allways worth it for fsx. You will see improvements in fsx with each higher clock.

 

I respect your right to your own analysis of course, but I would bet the quantum jump in performance you appreciate was not secondary to the 2% increase in clock speed, but is a red herring for other variables less appreciated. The program is sneaky hard to truly evaluate subjectively. If you could use a rationale on the basis of perhaps better synchronization between components at 4.9 over 4.8Ghz, perhaps, but if that's the case there may be other configurations, including lower clock speed, that might improve synchronization conceivably. Does 'performance' improve with clock speed increase, I think all else being equal, for certain. How much is the question then, and I as say this quantum jump in subjective experience is hard to explain on the basis of 2% increase in clock speed. And then there's the placebo effect, real and difficult to quantify.

And then there's the placebo effect, real and difficult to quantify.

 

I really don't think it is placebo... 4.9GHZ is less stuttery for me too...

I really don't think it is placebo... 4.9GHZ is less stuttery for me too...

 

Enjoy ;o)

Enjoy ;o)

 

Well... Maybe a little placebo... but I am enjoying this "smoothness"!! Don't ruin it! :lol:

Even it wasn't really any smoother, striving for higher performance is good for a little fun for it's own sake :rolleyes:

I respect your right to your own analysis of course, but I would bet the quantum jump in performance you appreciate was not secondary to the 2% increase in clock speed, but is a red herring for other variables less appreciated. The program is sneaky hard to truly evaluate subjectively. If you could use a rationale on the basis of perhaps better synchronization between components at 4.9 over 4.8Ghz, perhaps, but if that's the case there may be other configurations, including lower clock speed, that might improve synchronization conceivably. Does 'performance' improve with clock speed increase, I think all else being equal, for certain. How much is the question then, and I as say this quantum jump in subjective experience is hard to explain on the basis of 2% increase in clock speed. And then there's the placebo effect, real and difficult to quantify.

 

I tested again this morning, it's definitely less stutters with 4.9 vs 4.8GHz, no placebo at all. I looked to the left after take off, to airports buildings and - at 4.8 is a slideshow, at 4.9 just occasional, i saw 1 or 2 stutters only. One more interesting thing, at take off roll, at 4.8GHz i can't look at airports buildings, I feel that my eyes do not enjoy it(probably lack of fluidity). At 4.9 i can look at buildings without this problem.

That was in absolutely same conditions - saved flighs.

I thought that is maybe placebo too, but now i'm sure that is not the case.

And i think, this is the explanation: At 4.8GHz i have more fps variations, and it's logical that this causes stutters. Fps vary from 30 down to 24-26 on ground.

At 4.9, i get approx 2-3fps increase for tested scenario, which results in 27-29fps on ground. I mean, fps go down only to 29 and very rarely and only for a moment to 27. Most of time is 29,4 - 29,8 fps. Less variations = more fluidity.

I think that's the right explanation

 

And, in response to initial question, i don't remember some really big difference from 3.9 to 4.2GHz, but i remember my first "wow" somewhere above 4.5GHz, it's not the same fsx anymore

After leveling off at 4.9 for now, I am tempted to push for 5... I'll just have to give her a tremendous amount of voltage. - Something along the lines of 1.45-1.48Volts. :unsure:

Hi

Its was the same for me ,

Ended at 5.2ghz 24/7 with 2700k after swap to 3770k that have same performance or better

at 4.9ghz after à change to Phase change cooling the 3770 runs 100% stable 24/7 at 5.4ghz

thats the same as running à 2700k at 5.7-5.8ghz aim Very pleased now only Waits for Haswell

 

 

 

 

Hi

Its was the same for me ,

Ended at 5.2ghz 24/7 with 2700k after swap to 3770k that have same performance or better

at 4.9ghz after à change to Phase change cooling the 3770 runs 100% stable 24/7 at 5.4ghz

thats the same as running à 2700k at 5.7-5.8ghz aim Very pleased now only Waits for Haswell

 

Wow, what voltages you use with those super high overclock settings?

After leveling off at 4.9 for now, I am tempted to push for 5... I'll just have to give her a tremendous amount of voltage. - Something along the lines of 1.45-1.48Volts. :unsure:

Yes, about 1.47 - 1.48 is common for 2700k for 5GHz, from what i saw on overclockers forums. But i'm not sure if i want to go for 1.48vcore. I did 5GHz with exactlly 1.48. I read some articles that is not good to go above 1.45 for 24/7 on Air/Water. I leave it for now at 4.9 and 1.4vcore, and next year i'll go for 5GHz 24/7, becouse next year i can go for new CPU if degradation occurs.

Here is the arguments not to go above 1.45 http://www.overclock...500/1-45v-core-

voltage-is-safe-for-i7-2600k-2700k

And here is the arguments to go for 1.52, but not to exceed it even for a millisecond: http://www.overclock...es-and-voltages - in this thread you can find some other valuable informations too, and dokuments from intel, and really great explanations

P.S. Westman, i am curious in your opinion on this, if you have time

Edited October 12, 201213 yr by B247NG