Hi all,I've read some posts suggesting that a lower fps in FSX corresponds to a higher # in FS9. I would like someone to explain this phenomenom to me. Is it an optical illusion? or a self-fulfilling prophecy? Let's set our benchmarks on an equal screen resolution, equal refresh rate, equal texture bottleneck (say 512), and then tell me how this works. The math/physics is incongruent and I can't see what you are talking about. Now, the absence of microstutters may well be a contributing factor, but stipulating that they are absent (as they are in my FS9 setup), what is the point being made here? Is there some visual feedback in FSX that suggests you are getting more fluidity? I'm open to being convinced, but FPS is FPS.Need more input here: does not compute.Cheers,Tosh

It's an illusion.Some users maybe experiencing less stutters so they think a lower FSX fps is smoother than FS9.15FPS in FSX = 15FPS in FS9

Tosh; What most people are refering to is the fact that in FSX lowerframe rates to not produce the jerkiness and stuttering that wasprevalent in fs9. In my case in anything less than about 17 fps and fs9 was unflyable. With FSX 17fps looks and flys just fine. If the framerate indicatorwere not on you'd assume higher framerates.

>15FPS in FSX = 15FPS in FS9My 'equation' is different:FPS == meaningless UNLESS it is less than 10.The way FS measures 'FPS' - it simply doesn't take into account sudden fluctuations that can completely change your perception of things being 'smooth'. How many times I see fps in the 50-ties yet the whole thing looks jerky. FPS is a rather poor metric. Use your own eyes & brain to judge what is good/bad. Michael J.

FSX is throwing up to 10X + more data for your computer to chew on, what's amazing is that the performance is as good as it is...

FPS is FPS. But.. Like they say, stuttering, or otherproblems can be more irritating than a lower framerate.Myself, I do find it to be "fairly" stutterfree on my oldP4 3.15 and 9800pro. No worse than FS9 was in some places.But on the other hand 20 fps in FSX is appx the same framerateas 20 fps in FS9. So they are not changed as far as actual pure framerate. In general, FSX is slower. But to be expectedwith the larger files, moving cars, more autogen, etc. There is no free lunch. One thing about FSX I've noticed...I've seen a few minor bugs here and there, but the thing runsstable. I oft had the old bombout and 3d error messages with FS9,although towards the end it was pretty stable. So far with FSX,I've never crashed once yet. MK

FPS is FPS. The difference is, FSX at 15 fps flys as smooth as FS9 does at 25 fps. If you want to make that kind of comparison, that is...RhettAMD 3700+ (@2.5 ghz), eVGA 7800GT 256 (94.47), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 3-3-3-8, WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian

Given what?performance stats? telemetry stats? eyeballstats? I mean: what you got? Give me something and I would gladly care well. Nought and sought. Cheers mate, Tosh, A & P ,

I couldn't believe how smooth FSX was while displaying an FPS of 10-15. I turned on a real FPS counter that displays what my screen is really doing. With that counter displaying FS9's FPS display agrees with it. When in FSX the FSX FPS counter consistently displayed half of what my real counter was showing.This leads me to believe that FS9 is counting frames displayed and FSX is counting the slowest thing that is being displayed, like trees or something. Regardless of why the FSX counter is not the same as the FS9 counter, and can't be compared.I would be curious if anyone else has experienced this.Bruce

Do you have two monitors and are using Fraps?

>>FSX is throwing up to 10X + more data for your computer to chew on, what's amazing is that the performance is as good as it is...Bill, I think many(including myself)who are less techie literate, are trying to understand why that is, when in many given situations what is being displayed on screen seems no different than FS9 - everything else being equal.

Main reasons for this phenomena are:- wishfull thinking and strong will to convice yourself that you made a good purchase- a little head lag added by devs in 3D views (including internal) and better camera handling (ease ins and outs)- slightly better flight model and smoother gaugesOther than that (especially #1) 15 FPS in FSX sucks as bad as in FS9.