February 24, 201214 yr http://www.behardwar...erformance.htmlAm hoping the new PCI 3.0 will help FSX to increase fps, but after reading this, alas only increase 1 fps in most game, when compare to PCI 2.0. Sigh...Those who run FSX with PCI 3.0 please help state the performance, thanks.
February 24, 201214 yr Thanks Oliver,I don't know what to make of it. Very surprising! :Sigh:Quote:On the gaming side, the increases in bandwidth aren’t of much more use. While there’s still a difference between PCI Express 2.0 x16 and x8 (a difference that is even more marked with PCI Express 1.0 x16 in CrossFire), in practice this boils down to no more than one percent between PCI Express 3.0 x16 and x8 modes with a single card and half a percent in CrossFire.UnQuoteKind regards,
February 24, 201214 yr only increase 1 fps in most gameYou can't compare FSX with other games: FSX isn't a game! :Big Grin:FSX is old software and extremely inefficient, with the CPU doing much of the work the GPU should be doing, meaning the PCIe bus is overused by FSX and can very well be a bottleneck, as explained by Phil Taylor, Head of the ACES Team that designed FSX. See Phil's FSX PCIe required BW calculations here.Note at this point it is extremely unlikely anyone simming with FSX is using PCIe 3 because nVidia, the leading video card manufacturer for high-end FSX installations, does not currently support PCIe.Cheers,- jahman.
February 24, 201214 yr My money is on stutterings, as we all know FSX is a beast of it's own and PCI-e 2.0 is the bottleneck on top of the line rigs for FSX.Here I made a vid. in DX10 with the FPS counter on, as you can see the FPS is pretty good, the stutterings due to FPS fluctuations is not there, but I still see some stutterings so to me they are caused by the PCI-2, there is no way in hell that as of today stutterings are caused by our CPU Rams or GPU not been powerfull enough...Everything maxed out but car traffic at 22%, enable blooms + all other FPS killers.. Edit: Jahman beat me up to it as I was writing my post.......not fair.....
February 24, 201214 yr I've oft wondered this myself as of late. This could be tested with current AMD hardware, though as Jah said it would provide less-than-ideal results given the preference of Nvidia architecture/driver by FSX. One could test something like a Radeon 6870 and compare to a 7770, or perhaps a 6970 compared to a 7950 (trying to match performance difference between generations of hardware as closely as possible).
February 24, 201214 yr You can't compare FSX with other games: FSX isn't a game! :Big Grin:Yup. But I'm having trouble believing the bandwidth is being saturated in FSX. I can't get past that point, so 3.0 isn't what I see enhancing our FSX experience. ___________________________________________________________________________________ Zachary Waddell -- Caravan Driver -- Facebook: http://www.facebook.com/zwaddell Avsim ToS Avsim Screenshot Rules
February 24, 201214 yr Yup. But I'm having trouble believing the bandwidth is being saturated in FSX. I can't get past that point, so 3.0 isn't what I see enhancing our FSX experience.Read the link Jah posted.
February 24, 201214 yr Yup. But I'm having trouble believing the bandwidth is being saturated in FSX. I can't get past that point, so 3.0 isn't what I see enhancing our FSX experience.There was a post around here somewhere where a guy tested PCI bandwidth in FSX. There was a big jump in FPS from 8x to 16x and so on so forth....I expect to see a large jump in FPS from PCIe2 to PCIe3; Especially when the BP=0 tweak is applied with a fast Kepler card.
February 24, 201214 yr I am not finding FSX to run that bad anymore...kinda happy as is:) :Loser: Simon
February 24, 201214 yr Whenever I'm around areas with lots of autogen such as Los Angeles with extremely dense autogen setting I still get good frame rates, provided that I have aircraft AI disabled and no more than 25% road traffic, and a few other settings disabled. I want is better performance when I'm at busy airports with 3rd party AI aircraft traffic at 100%, because this is where I need the performance increase the most. It's tha AI traffic that's holding back my frame rates the most, not autogen.
February 24, 201214 yr Read the link Jah posted.I'm well acquainted with that article; it's been around since 2008. Where did you disappear to for so long, anyway?!There was a post around here somewhere where a guy tested PCI bandwidth in FSX. There was a big jump in FPS from 8x to 16x and so on so forth....I expect to see a large jump in FPS from PCIe2 to PCIe3; Especially when the BP=0 tweak is applied with a fast Kepler card.A few people keep touting that PCI3.0 is going to give &@($* loads of FPS. That's only the case if one is using extreme autogen settings! It's not going to help alleviate our CPUs when using AI traffic at FSDT. That's for sure! ___________________________________________________________________________________ Zachary Waddell -- Caravan Driver -- Facebook: http://www.facebook.com/zwaddell Avsim ToS Avsim Screenshot Rules
February 24, 201214 yr A few people keep touting that PCI3.0 is going to give &@($* loads of FPS. That's only the case if one is using extreme autogen settings! It's not going to help alleviate our CPUs when using AI traffic at FSDT. That's for sure!There's a lot we don't know about how PCIe will (favourably) impact FSX performance. Currently there's a lot of work FSX is doing to stuff all the objects the CPU manufactures accross to the GDU for rendering.As a general rule, the more limited the badwidth, the more pre-processing you have to do to get your data accross to avoid a potential bottleneck.For FSX, PCIe 3 could mean less CPU cycles wasted on getting data accross the PCIe bus (we don't know what optimiations FSX is currently doing to get the data accross using PCIe 2). Could also mean less stutter, we don't know at this point.It has always been useful to incorporate newer, faster technology standards into your gaming PC. The move to PCIe 3 will be no exception.Where did you disappear to for so long, anyway?!He's probably been hitting the books for IB and PCIe 3!Cheers,- jahman.
February 25, 201214 yr I'm well acquainted with that article; it's been around since 2008. Where did you disappear to for so long, anyway?!Getting married soon, have a lot going on, not much time for forums. A few people keep touting that PCI3.0 is going to give &@($* loads of FPS. That's only the case if one is using extreme autogen settings! It's not going to help alleviate our CPUs when using AI traffic at FSDT. That's for sure!It will still be interesting to see the results. I don't think PCI-e 3 will necessarily bring huge FPS improvements, but it should smooth out the dips in high autogen areas.
February 25, 201214 yr i don't fly with autogen; still think it looks ridiculous; so won't help me any based on this... Simon
February 26, 201214 yr Getting married soon, have a lot going on, not much time for forums. Congrats. I had forgotten.i don't fly with autogen; still think it looks ridiculous; so won't help me any based on this...That seems really strange. But hey, we all enjoy this hobby a different way. ___________________________________________________________________________________ Zachary Waddell -- Caravan Driver -- Facebook: http://www.facebook.com/zwaddell Avsim ToS Avsim Screenshot Rules
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