Core I7-9xx and ATIs please unite ...
 

Ok, so there is still a very serious performance drop bug impacting
ATIs 4000/5000/6000 series especially clear with Core I7-900 CPUs and some others big cpus.
This is maybe related to a fake full screen mode still used by the game.
Meanwhile this bug is not impacting everybody and some have experienced
the wonders of the last patch on the very same hardware specs.

There is one more pending week until next patch, so those who are out of the woods by now may help the others to temporarily overcome the problem.
Please just say if you're ok or not, and give at least : screen resolution, refresh rate, game options (shadows..), video card, modified drivers panel y/n, motherboard type.

warning : having a 1gig video card may still cause some stutters over cities,
we are talking about poor (even worst) overall improvements here.

I know where to get some pitch forks and torches :P

Dont say that lol im getting my New XFX ATI Radeon 6970 2048MB GDDR5 PCI-Express 2morrow lol, im starting to get worried now:(
Doc

Ok here is my system

AMD 1055T 6 core cpu clocked at 3,3 Ghz , Saphire ATI 5870 1 GB Vapor -X, 8 GB DDR3 Corsair ram!

With the beta patch i had nice performance. The stuttering was gone. It was smooth! With current patch it is much much worse! Alot of freezes, Stuttering and very low fps on high settings except trees on middle to low at 1920 / 1200 !

Then i noticed that in the current patch my graphic card did not go to full throttle ...in fact it stayed at GPU 400 and vram 900 (should be gpu 875 and vram 1250)

Unfortunatly i was not able to get the ATI tray tool running together with launcher.exe to force the card in full 3d mode. Only one time i was able to play with ATT tool activated and everything was smooth again. But since then ATT tool crashes when launcher exe is launched.

Seems to be a major bug because some people with similar or better PC have no performance issues at all and their cards seem to run at full speed.

Most performance issues with ATI/AMD GPUs and Cliffs of Dover can be attributed to the fact the game does not run in a full-screen mode like every other DirectX game out there. This is breaking the drivers on many levels including stopping the Catalyst Control Center from having any effect in-game in terms of applied settings as well as causing the game to be ignored as a 3D program which has the follow-on effect of 3d clock speeds not being applied properly.

Would like an update in regards to the full-screen situation, it was mentioned last patch it would be added in but its still not here.

Well i have a hd 6950 and i still get bad stutters and not brilliant FPS,also i am still get the problem with halo rings in the sky over sea:(

I'm about to install one this evening to replace my GTX285. I'll let you know how I get on. However, I don't think that there is a universal problem with them.

No problems for me, very slight FPS related stutters when flying over rooftops level over London plus a few bugs here and there. But definetly playable with over 50planes over land, AA etc etc. Running it 1080p with 8xAA anti-epi of and SSAO on and all settings on high exept building quality on medium (playable with all max but I like to have few frames more and ass little stutters as possible. I have not tried the newest official patch because of work so those are from the latest beta patch. I´ll try how well my 6970 will OC tonight so I´ll se if I can get even more frames out of the game with it.

I don´t know does it matter but I´m running dualscreen. And I have checked that my GPU throttles up properly and CPU does use more cores than one plus I´m using hyperthreading.

It´s running well on my system:

q9550 3.4ghz
4gb ram
Asus 6970 2gb ,stock clock, 11.3 driver

1680x1050
Win7 64

no AA
anti-epilepsy off
all high, except buildings quality low.
Trees, terrain and landscape shading - medium details.

My frame rate drops to single digits over built up areas, pretty much the same as most from what I gather. The stuttering seems incurable even with everything off or set to low it's still there. I'm finding it playable with models set to high and everything else medium, but only by staying away from built up areas.

My GPU always uses the fastest clock speeds.

The patch greatly improved performance for me and I run a i7 900 series chip and use an ati 5000 vid card. My specs are as follows:

chip 920 @ 4.0Ghz

Vid card: 5850 with Cats 11.3

In game res.

1920x1200 @60mhz

All set to high with SSAO disabled (unchecked)

buildings number set to medium
textures set to high

I get over london on average 35fps and no stutters.. over sea and unpopulated land my fps go up in the 50's and 60's

I have your system. You will be happy ;). Only thing I turn off is shadows. I don't use FSAS either since it doesn't seem to make a difference. Game runs great. Only issues I've had, if I change certain Video settings that require a restart of the game the launcher stop and I need to close and restart game manually.

XFX ATI Radeon 6970 2048MB GDDR5 PCI-Express 2morrow
waited in all day for it to turn up, now its not coming till 2morrow :(
Overclocker.uk you disapoint me :)
regards
Doc

I did copy your specs m8, when i built this :)
regards
Doc

You won't be disappointed.

Same here. I have i7 920 3ghz and Radeon 6970 (that I just bought last week), and I get average 18fps over London (when flying over rooftops) on medium to high settings on 1920 resolution. I am quite disappointed on the performance.

I have an I7 950, 12 x1600 Ram, and a GTX285 and I didn't notice much of a difference from the beta patch to the April 18 official patch.

I am using 1920x1080 Everything High except Low on the trees, no grass, medium on buildings, and no roads. I am probably going to turn roads back on. Because i really don't see a big difference in speed. I get 50+ FPS at high altitude and dip into the high teens about 1000ft or lower.

the only time I notice a very slow rate is at extremely low altitude (500ft) or less. I haven't been around the big cities yet, but I am guessing that the bottleneck isn't the Graphics Card.

It seems to me that the ammount of objects that the CPU has to account for bog it down pretty hard. The only reason I make this assumption is how much of a difference online play makes to FPS. I think once they balance out and optimize core usage the game will be much more playable on multi-core machines. For me speed really is a non-issue though.

At the moment im using 2 9600 gso's
But its only using one of them, because of sli not working.
But that one card, is performing better than i expected :) i would hate to think what it would run like if i had both cards working in sli :)
regards
Doc

I get an average of 54 flying around in the Spitfire over London Quick Mission at 1920X1200 High Settings.. SSAO Unchecked, Shadows OFF AA Off (in game GUI)

From what I've gathered thus far from tweaking the settings to get the best performance is that by just turning shadows off in the GUI is like giving this sim steroids. It really boosts framerate. I kinda love the look of dynamic shadows in the pit so i keep it on, but if you want to boost your frames just uncheck shadows.

Shadows is a big hit.. they look AMAZING though.. so online I leave them on and I can afford the extra FPS I lose.. If my system was borderline after turning off SSAO they are the next thing to go..those 2 features should get you close to double the frame rate you had with them on..

Don't worry yet, I'm running a q8400 (cpu) and a 6870 and its all good.

Anyone suggesting taking off shadows, can't take off the shadows I just love them too much (especially on the cockpit). That's what makes the sim for me ;)

..But I guess that's pretty much what slows things down.. oh well.

Yeah, I haven't even tried the game with shadows off LOL.

But FPS are my only issues and I hope the XFIRE patch will do wonders for my 5970, or this fullscreen stuff that ATI users keep on muttering about.

If you have the FPS I'd leave them on.. the SSAO is by far a bigger savings and really no visible loss of graphics.. The Shadows are so cool, but they are fps intensive.

I Put my hand up...on yes to all the stuff in this thread..Fullscreen, Ati not clocking up , blah blah,, yes to all.

Thanks for posting guys...a new voice to be heard.

O_Smiladon

+1

+1

Hi Guys,

I have been mucking around with some settings and have found this the best for me.

http://i756.photobucket.com/albums/x...n/settings.jpg

See if it works for you..

I7 930, HD4890 , 6 gig ram , win7 64bit

Cheers

O_Smiladon