HiI am wondering if upgrading my PC is of any use.E8500 at 4.1GHzGigabyte EP45-DS44G 1066MHz RAM150GB Velciraptor750GB F1 SpinpointNivdia 260GTXI was thinking of 920i7 D0 CPU and 1366 mobo of course with 6GB RAM.I think FSX like FS2004 is single thread in which case overclocking the 920 to about the same 4GHz may not produce any noticable extra fps, would that be correct?krishan

I think FSX like FS2004 is single thread in which case overclocking the 920 to about the same 4GHz may not produce any noticable extra fps, would that be correct?

This is a rather strange question to ask. What does number of threads have to overclocking? Nothing. When you overclock you gain some performance regardless of number of threads.

HiI am wondering if upgrading my PC is of any use.E8500 at 4.1GHzGigabyte EP45-DS44G 1066MHz RAM150GB Velciraptor750GB F1 SpinpointNivdia 260GTXI was thinking of 920i7 D0 CPU and 1366 mobo of course with 6GB RAM.I think FSX like FS2004 is single thread in which case overclocking the 920 to about the same 4GHz may not produce any noticable extra fps, would that be correct?krishan

FSX SP2 does some limited multithreading for overhead tasks like texture loading. It does make for a smoother sim, especially in areas of complex scenery.The improved instruction pipelining in the i7 makes for better throughput than the Core2Duo at the same clock speed, and the triple-channel memory bandwidth is considerably higher as well.If I run my i7-975 at 3.6 GHz it is considerably faster (and smoother) than my Core2Duo X6800 extreme edition at the same clock speed.RegardsBob ScottColonel, USAF (ret)ATP IMEL Gulfstream II-III-IV-VColorado Springs, CO

Hey BobWill your i7-975 allow pretty much any setting and any complex aircraft (PMDG-747) with complex scenery with smooth framerates above 15 or so? I am hoping to upgrade to an i7 with that being my last CPU upgrade for FSX.RH

Yeahme with PMDG 747, TRaffic X at 70% sliders almost maxed out and at heavy traffic airport like heathrow I get about 11 fps, I want more without reducing traffic, maybe ultimate traffic is better and will impact less on fps.

Hey BobWill your i7-975 allow pretty much any setting and any complex aircraft (PMDG-747) with complex scenery with smooth framerates above 15 or so? I am hoping to upgrade to an i7 with that being my last CPU upgrade for FSX.RH

With the i7 at 4.4 GHz I can fly a complex acft into complex scenery with generally very few issues. I set my traffic sliders in UT-II at 60% commercial and 35% GA (for aesthetics as much as performance). However there are still a few trouble spots...my ultimate torture test is to take off northbound from KJFK (FSDreamTeam), fly a left turn over the airfield, and head direct for Manhattan (default) and KLGA (ImagineSim). With a complex bird like the PMDG MD-11, the combo of buildings, ground traffic, air traffic at LGA and EWR, and weather can bring even the mighty 975 down into the low teens. My old test flight, from KSEA over the city of Seattle, and then back, runs with the MD-11 locked at 25fps on the i7 even in heavy rain.I run with scenery set to extremely dense now...the only real performance killer the i7 can't summarily brush aside is AI traffic at very high settings, and that only in areas of unusually dense traffic.RegardsBob ScottColonel, USAF (ret)ATP IMEL Gulfstream II-III-IV-VColorado Springs, CO

Low teens is not bad. Thanks for the info! I suppose we will have to wait for the 32nm version of the i7 Extreme coming in Q1 of 2010. Hopefully, that will be able to crank up to 5Ghz. RH

SP1/SP2 introduced multithread to terrain, ground textures and autogen. All physcial cores past the primary core will be accessed by FSX for those itemsIts a shame they did not do the same for AI traffic because AI is a primary perf killer in FSX to any CPU. Since AI is addressed to the first core of the proc with the rest of the program being run it will continue to be the achilles heel of FSX to processors for some timeSystems that use a quad core with the right CPU speed enjoy a clearer, sometimes higher scenery slider, smoother flight

SP1/SP2 introduced multithread to terrain, ground textures and autogen. All physcial cores past the primary core will be accessed by FSX for those itemsIts a shame they did not do the same for AI traffic because AI is a primary perf killer in FSX to any CPU. Since AI is addressed to the first core of the proc with the rest of the program being run it will continue to be the achilles heel of FSX to processors for some timeSystems that use a quad core with the right CPU speed enjoy a clearer, sometimes higher scenery slider, smoother flight

I totally agree with add-on traffic been the main killer, if I do not install traffic X my fps are in the 20-30 fps ay heathrow, same situ as above, but with traffic X, big killer.I still fly FS2004 as traffic 2005 and fs2004 still give be smooth flight with 30-60 fps on my rig.From what you say, if I were to upgrade to i7 then if I overclock to same level maybe 4GHz, I should see a better performance though not massive., would that be correct

By the very definition all Microsoft Windows programs are multi-threaded... that's how the OS is able to run multiple programs at the same time, and not cause the mouse to freeze up on you :)And when it comes to video games... you'll find that us programmers will avoid the overhead of threading entirely.. and just run different processes on another CPU with entirely seperate memory address... not really done for PC games because there just aren't enough real independant cores.Just remember threading takes up at least 10% extra computing power... you need that 10% for FSX under every circumstance. :) But then again MSFS was written by NOOBS who are all unemployed now for good reason!

By the very definition all Microsoft Windows programs are multi-threaded... that's how the OS is able to run multiple programs at the same time, and not cause the mouse to freeze up on you :)

That's not multithreading, that's multitasking.

That's not multithreading, that's multitasking.

Correct but don't expect that AVN8tr would comprehend this. This kid is just clueless.

edıt

duh whats multıthreadıng... I used ıt because the orıgınal poster used ıt... what does threadıng have to do wıth Wındows we use dıspatch/ event processing in the windows world. Unlike Unix we don't wait for timeslices, we wait for triggers. If you weren't such a troll and didn't feel threatened by someone who actually knows what he's talking about, you would have pointed that out! But you didn't.