Microsoft Flight Simulator X + SP1 + SP2 + REX 2.0Graphics: Maximum (1440x900)Processor: Intel Core i7-2600 3,40GHzVideo: Radeon HD 6850RAM: 4GB KingstonMotherboard: Gigabyte P67A-UD4 Grounded:Virtual Cockpit: ~28 fpsOutside: 50+ fps In the air:Virtual Cockpit: ~35 fpsOutside 60+ fps

You lucky guys. I bought an i5 2500K, GTX580 and 8 Gb CL8 ram and around addon airports I am happy if can keep it at 30 fps. When I am flying the 737NGX usually fps drops to low 20's while landing, even at default (big) airports in PNW. And that's NOT with all sliders to the right: traffic is low (only airliners at 25%, the rest is off, no cars etc), cloud distance is low, flare is off, and in order to keep fps above 20 while landing autogen is at dense, mesh, water and another settings is set lower too, etc. etc. And ALL the time I have very frequent microstutters (due to vsync)... So congrats to all who bought a new system and are happy with it, but FSX is a weird and unpredictable animal... Although I have to say I am enjoying flying around, I regret spending so much money on almost no progress at all... (And I tried all the tweaks in the book and am done tweaking so I will stay with what I have, so no need for advice here. I just want to make clear SandyBridge isn't the 100% sure magic bullet either.)

Well, you're not the only one. I am seeing the exact same problems here (with i7 2600k). Maybe it has something to do with the subjectivity of assessing performance; what I find stuttery may be considered fluid by someone else. Still though, I had hoped to get a whole lot more from my system. My heavy test scenario is at EHAM with heavy weather and UT2 @ 70%, and in some cases my FPS drop to as low as 9 FPS. Removing traffic does not seem to affect performance that much (only 3 FPS or something like that). I have been trying to tweak with a lot, where my fluidity does seem to improve with lowering AA (something that I had not expected with a monster of a GTX580) though quality decreases a lot. That said, I also have most settings lowered (autogen dense, scenery complexity at dense, water at low 2.x, etc), but this does not really improve stuff. I have no idea what's wrong, but I have the feeling that there must be something I am missing...

Well, you're not the only one. I am seeing the exact same problems here (with i7 2600k). Maybe it has something to do with the subjectivity of assessing performance; what I find stuttery may be considered fluid by someone else. Still though, I had hoped to get a whole lot more from my system. My heavy test scenario is at EHAM with heavy weather and UT2 @ 70%, and in some cases my FPS drop to as low as 9 FPS. Removing traffic does not seem to affect performance that much (only 3 FPS or something like that). I have been trying to tweak with a lot, where my fluidity does seem to improve with lowering AA (something that I had not expected with a monster of a GTX580) though quality decreases a lot. That said, I also have most settings lowered (autogen dense, scenery complexity at dense, water at low 2.x, etc), but this does not really improve stuff. I have no idea what's wrong, but I have the feeling that there must be something I am missing...

Good to know I'm not the only one. If I find out what's causing the not too good performance, I'll let you know...!

Because a friend wanted an upgrade. I got the 2600k for a steal, but sold it for much, much more.

Nothing like a "friend" that will make a profit on you. Why not just sell it to him at the replacement cost of your i2500K.

Well, you're not the only one. I am seeing the exact same problems here (with i7 2600k). Maybe it has something to do with the subjectivity of assessing performance; what I find stuttery may be considered fluid by someone else. Still though, I had hoped to get a whole lot more from my system. My heavy test scenario is at EHAM with heavy weather and UT2 @ 70%, and in some cases my FPS drop to as low as 9 FPS. Removing traffic does not seem to affect performance that much (only 3 FPS or something like that). I have been trying to tweak with a lot, where my fluidity does seem to improve with lowering AA (something that I had not expected with a monster of a GTX580) though quality decreases a lot. That said, I also have most settings lowered (autogen dense, scenery complexity at dense, water at low 2.x, etc), but this does not really improve stuff. I have no idea what's wrong, but I have the feeling that there must be something I am missing...

One question, do you have Hyper Threading enabled?

For the price, you'd be surprised... I know I was.

Ive just sold my i7950 and bought a 2500K with P67 Sabertooth and 8GB of Corsair vengence, i cant wait to try it out on Monday when it arrive, the 950 was good but i expect the 2500K to be a lot better :) Hoping for 5Ghz :D

One question, do you have Hyper Threading enabled?

Nope I haven't since I thought it was of no use for FSX and the decrease in CPU temps was more beneficial

Nope I haven't since I thought it was of no use for FSX and the decrease in CPU temps was more beneficial

Indeed. In fact, HT actually reduces FSX fps, so leave it off, but may i ask why you bought the 2600k then? If you don't need HT, the 2500K is actually better. It is cheaper and a tiny bit better overclockable than the 2600k

We are talking about a badly coded simulation platform here guys which is nearly 6 years oldand only supports shader 2. It also uses the same 4 gig memory limit as your graphics card.and OS if not in 64 bit. I am getting 20-30 FPS with an old Duo Core 2.3 ghz and a 8800GT nvidia card. (512 Mb)I am running Win 7 32 bit with 3 gigs of ram and have has no problems of any kind. No OOM, Freezes, CTD's..................nothing. I will think about a much higher spec if MS Flight is a 64 bit app and is any good.

I'm assuming you browsed through the source code to back that up right? Or have deep knowledge of game programming and how a simulation works, please don't take this bad, but 95% of forumers saying tthat FSX is "badly" coded have zero knowledge on programming in general. And regarding you getting 20-30fps with your current system specs, there's no way you're getting that with maxed sliders, AI traffic and scenery addons, sorry! It's easy to post eyah I'm getting 150fps, but you have to compare equivalent setups. Try Heathrow with AI traffic on and most of the sliders maxed and I swear your system will crawl down to a stall in no time! Cheers!

Yeah, let's see you get that at ORBX YMML or any payware airport with traffic on AND cars/boats.

The OP stated that the 25-35 fps figures were observed at ORBX YMML with traffic, cars, boats, and very high graphics settings.

The OP stated that the 25-35 fps figures were observed at ORBX YMML with traffic, cars, boats, and very high graphics settings.

i was actually replying to trip7cap.

i was actually replying to trip7cap.

Sorry, my mistake.

SandyBridge rules!!! I love SB!!!

Well, you're not the only one. I am seeing the exact same problems here (with i7 2600k). Maybe it has something to do with the subjectivity of assessing performance; what I find stuttery may be considered fluid by someone else. Still though, I had hoped to get a whole lot more from my system. My heavy test scenario is at EHAM with heavy weather and UT2 @ 70%, and in some cases my FPS drop to as low as 9 FPS. Removing traffic does not seem to affect performance that much (only 3 FPS or something like that). I have been trying to tweak with a lot, where my fluidity does seem to improve with lowering AA (something that I had not expected with a monster of a GTX580) though quality decreases a lot. That said, I also have most settings lowered (autogen dense, scenery complexity at dense, water at low 2.x, etc), but this does not really improve stuff. I have no idea what's wrong, but I have the feeling that there must be something I am missing...

Hey Alex. Have you used the Mipmap fix for UT2? It helps with the frames and the texture quallity is really good.Regards,

Well, you're not the only one. I am seeing the exact same problems here (with i7 2600k). Maybe it has something to do with the subjectivity of assessing performance; what I find stuttery may be considered fluid by someone else. Still though, I had hoped to get a whole lot more from my system. My heavy test scenario is at EHAM with heavy weather and UT2 @ 70%, and in some cases my FPS drop to as low as 9 FPS. Removing traffic does not seem to affect performance that much (only 3 FPS or something like that). I have been trying to tweak with a lot, where my fluidity does seem to improve with lowering AA (something that I had not expected with a monster of a GTX580) though quality decreases a lot. That said, I also have most settings lowered (autogen dense, scenery complexity at dense, water at low 2.x, etc), but this does not really improve stuff. I have no idea what's wrong, but I have the feeling that there must be something I am missing...

Almost identical equipment same disappointing performance. The combination of heavy weather, megaaiport by Aerosoft, maxed autogen and an unfortunately very demanding NGX will inevitably lead to low fps. For example 14 when approaching EDDH or LFPG.Well, this fps-fiasco improves a lot as soon as I take my Ifly or Wilco's Embraer for a flight ...