FSX multi GPU

[Darxide]

Is anyone here playing FSX with muti GPU's? e.g. Crossfire/SLI..

I've just ordered a new monitor, Acer 24" 1920x1200, and was thinking that the increased res may put strain on my current rig.

I'm using an HD4870 1Gb, and it performs pretty well on my current 1600x1200 monitor, but it could be better. (Rest of my rig is in the sig)..

Does FSX scale well in multi GPUs? If I add a second 4870 in Crossfire, would it make much of an improvement?

Thanks.

[M31]

FSX does not take advantage of Crossfire or SLI and can actually run a little worse using these methods.

However, I've got 2 x 4870's in Crossfire X and my main game is FSX, but I only bought the second 4870 because it was going cheap on ebay and was identical to my original, also I do play a couple of other games like CoD4 that do take advantage of Crossfire X, when I play FSX I'll normally uncheck Crossfire X or if I forget just live with the fact I'm losing on average a couple of frames a second for that session.

I'm running a 24" LCD @ 1920 x 1200, so if you have a 1GB 4870 already, you will be fine, just don't expect the silly FPS figures extreme Gamers want and can get in some of the shooters, in FSX it will be years before any hardware can do that, but it doesn't need it, on my machine with a well tweaked OS and FSX install, I can get between 18 to 50 FPS on average and it never stutters and is quite fluid in flight.

[fiskov]

I actually lose FPS using SLI with two 280gtx's, only bought them for FSX too.
1920x1080 with 8x 4x AA/AF pretty much constant 18-24fps. I have quite a lot of realisim/high def scenery packs though.

[Darxide]

Ok, thanks for the advice. The monitor has arrived, so I'll do some testing on my single 4870.

I too play COD4 among others, so I might buy a second card anyway. like you say, I can always uncheck crossfire before playing FSX.

[Stoner133]

You won't have to uncheck Crossfire with your system Darxide. My system is close to your's and I run FSX and I don't uncheck Crossfire. I get 50 fps at a minimum on my system. FSX is more CPU dependant then GPU. I also run my monitor at 1920X1200 as well.

[M31]

You won't have to uncheck Crossfire with your system Darxide. My system is close to your's and I run FSX and I don't uncheck Crossfire. I get 50 fps at a minimum on my system. FSX is more CPU dependant then GPU. I also run my monitor at 1920X1200 as well.

Would you care to lay your reputation down on the line with this. in FS Circles? You get 50 FPS at a minimum? stop being an arsehole, mate.

Crossfiire X offers absolutely NOTHING in FSX it never did and it never will.

Stop clouding the Issue.

You can always spot the unrealistic Guys in FSX ...... 50 FPS at a minimum, and his spec .... Oh dear

[SNiiPE_DoGG]

why not just use the crossfire fixer for FSX....??? it would probably work fine, FSX is D3D right?

[NaMcO]

I managed slightly better FPS when i added my second GTX280 in FSX but i have my effects spiced up. Biggest earnings were a change from the E8600 to the i7 920 and modification of the configuration file in order to make FSX aware of all 4 cores. FSX is very CPU dependent as we all know. My framerate in loaded scenarios can go as low as 20fps but in open sea raises to 70 sometimes as there's nothing there :P

[fiskov]

I managed slightly better FPS when i added my second GTX280 in FSX but i have my effects spiced up. Biggest earnings were a change from the E8600 to the i7 920 and modification of the configuration file in order to make FSX aware of all 4 cores. FSX is very CPU dependent as we all know. My framerate in loaded scenarios can go as low as 20fps but in open sea raises to 70 sometimes as there's nothing there :P

Care to elaborate how to do this? I also have a i7 920 @ 4ghz but FSX doesn't even use the full power of 2 cores.

[Stoner133]

Would you care to lay your reputation down on the line with this. in FS Circles? You get 50 FPS at a minimum? stop being an arsehole, mate.

Crossfiire X offers absolutely NOTHING in FSX it never did and it never will.

Stop clouding the Issue.

You can always spot the unrealistic Guys in FSX ...... 50 FPS at a minimum, and his spec .... Oh dear

I never said that Crossfire added anything in FSX I jsut said that there is no need to disable it. Yes I get 50fps at a minimum and it will climb to 180fps depending on alltitude and how complex tihe sceenery is at the time. What the h*ll is FS Circles? I'll post a couple screen shot's later when I get home from work.

[M31]

Yes I get 50fps at a minimum and it will climb to 180fps

Mate ... I beta test FSX software add-ons and hardware for the hobby, there is no computer on the planet that can run FSX at a 50 FPS minimum climbing to 180 FPS, unless you have all sliders to the left, are running the lowest resolution possible and are flying over just water all the time, then you might as well be using FS5.

I dare you and double dare you to show un-doctored screen shots showing average FPS on the Tokyo mission or flying over any large city in FSX.

I don't mean to be a hardware snob, but you are *NOT* getting 50 FPS as a minimum on the rig in your sig.

And yes ... Crossfire as well as SLI will slow down the performance in FSX slightly, its not only well documented but I know this from first hand experience.

[Stoner133]

Ok here you are, flight is from Norfork, VA (Norfork International) to Washington DC (Reagan International) alt. 4000ft flying over Newport News, VA.


By knuckles6 at 2009-05-02



By knuckles6 at 2009-05-02

Get your magnifying glass out you will see 55.5fps

Just thought I would add these


By knuckles6 at 2009-05-02


By knuckles6 at 2009-05-02

[orangekiwii]

whats the draw of fsx? it seems really really slow to me...

[Darxide]

OK, so despite the arguments, you're all agreed that Crossfire will do squat for FSX?

Thanks, and yes, I know FSX is very CPU heavy, it's the only game I have that maxes out my Phenom II.
I have no loyalty to any CPU maker, but if I'd gone with an i7, I would have ended up with an overall weaker machine, because I wouldn't have been able to afford the Raptor drives, or the 24" screen etc etc.....

[M31]

LOL.. i cant make didelly sqwat from his FSP readouts, can anyone else?

These shots are extremely low quality though and definatly not representative of what FSX can do.

[M31]

Can anyone make out the FPS in top left hand corner?

[NaMcO]

Care to elaborate how to do this? I also have a i7 920 @ 4ghz but FSX doesn't even use the full power of 2 cores.

My main computer is down (setting up watercooling) but it's easy to find through google. Basically this:

Set AffinityMask=15 in the fsx.cfg file. This mask will enable use of all the 4 cores of the CPU. Make sure the latest service pack is installed though.

Here's one of the sources i used for information. I can also post pictures and settings once i get the computer up and running again (monday / tuesday) if you think it can help.

Source

Cheers

[fiskov]

Cheers for that, looks like it's working according to Task Manager.
Not sure whether its effected the FPS, but it does seem to have made the game smoother.

[NaMcO]

Yeah it still doesn't make FULL use of a Quad, but the performance increase is indeed notorious. Shame the engine doesn't rely on GPU some more, like i posted before

With the current situation of the Studios, it never will probably... Shame, it's an awesome sim.

[RaZz!]

LOL.. i cant make didelly sqwat from his FSP readouts, can anyone else?

These shots are extremely low quality though and definatly not representative of what FSX can do.

i lol'ed after i tried to find a highres version of his screens but couldn't find any

these screens are kind of useless if you ask me

[Stoner133]

Ok here for your weak eyes I zoomed in for you.


By knuckles6 at 2009-05-02

Thats a 66.5 fps in that shot


By knuckles6 at 2009-05-02

That says 52.9 fps there.

Absolutely Crossfire makes no improvement at all, but it also isn't worth disableling for just for this sim either.

[M31]

Ok here for your weak eyes I zoomed in for you.


By knuckles6 at 2009-05-02

Thats a 66.5 fps in that shot


By knuckles6 at 2009-05-02

That says 52.9 fps there.

Absolutely Crossfire makes no improvement at all, but it also isn't worth disableling for just for this sim either.

If you want to save a few FPS, then yes it is worth switching Crossfire off, its been well documented and I know this for a fact.

In FSX, you need all the FPS you can get (apart from your rig obviously) that's why we tweak it inside out.

LOL m8, what resolution is that, 640x480? (you said you had a 24" LCD, right) also check the jaggies, you also have the detail very very low for those screenies. and your water setting and autogen is very low too, also what happened to your 180 FPS claims?

That's not what FSX is about. I could turn everything down too and get the same sort of FPS figures or higher.

Now this is what FSX can look like, anything less and you might as well stick with FS9 or even FS8. Just dont expect frame rates that you talk of in FSX if you are using it like you are supposed to

[Stoner133]

Notice how he fails to include his FPS in his shots. Also you must not have checked the setting shot showing 1920x1200 at 32bit color. Also the screen shot shows autogen on max.

[Stoner133]

Ok I don't take many screen shots from FSX but here is one.


By knuckles6 at 2009-05-15

Then this close up so hopefully you can see


By knuckles6 at 2009-05-15

That's 136 fps there and before you cry that there isn't much for sceenery I already said that altitude does give a higher frame rate then low level flight. Oh and one more thing, I NEVER claimed to have all my settings maxed out. All I ever really said is it's not needed to disable Crossfire for the sim. The gain in FPS isn't that great to make it worth while to take the time to deactivate Crossfire.

[M31]

Notice how he fails to include his FPS in his shots. Also you must not have checked the setting shot showing 1920x1200 at 32bit color. Also the screen shot shows autogen on max.

Mate this is not a FSX FPS Competition, you came on here bragging your rig can do 50 FPS at a minimum rising to 180 FPS ... these are your words.

My FPS and the whole majority of the FSX community have far far lower FPS than you claim, especially average FPS, you are running the sim on low detail for the screenie's, that's quite obvious.

Its quite easy to post screens of settings at max or high, then change it to low resolution, low detail settings like you have, to back up your ridiculous claims. Please dont take us for Fools.

The proof is in the pictures, anyone would think you were promoting FS5 with your screenies, not FS10.

Here's (Once More) some screens of what FSX can look like (I'm claiming low FPS here Folks) when you go above the detail level of its predecessor FS9.

Manhattan X

I get about 14 to 25 FPS from the rig in my sig in this area.





Now go buy this scenery, run it the detail levels needed to get these shots .... This is yours FFS.



You come back and tell us what FPS you get on that Wonder rig of yours in the same situations.

Jeez, talk about comparing Apples with Oranges

Mate, a stock install of FSX like you have is not worth having, and is certainly not comparative of the bigger picture.

But if you are happy, then why worry.