I have no experience myself since my main desktop is in pieces and I will not be able to use it until Tuesday. But at forums such as Hardforum, Guru3d and even here I am reading reports that the new AMD hotfix and the 1.1 witcher 2 patch are making the game experience even worse for AMD gpu users. Normally this wouldn't really bother me, except that I have a 6970 on order. Are the AMD users here only having bad experiences or are there some success stories also? If it's all bad and true, it looks like I chose the wrong video card to buy. Thanks for any help.

Yeah, some of the users are having stuttering with single GPU. And the cross-fire users are having issues with lighting bloom peaking through textures.

So as I see it, the stuttering on AMD is probably a CD Projekt issue. The game runs much better on Nvidia and that's not a coincidence. But considering there are more DX11 AMD GPU's out there that are capable of running Witcher 2 in it's full glory, it's a travesty that CD Projekt didn't provide better support. The CFX issue is something AMD is looking into right now. It's been tweeted already by CatalystCreator.

That's one of the sad states of PC Gaming. There is so much politics and stupid crap going on between AMD and Nvidia. Games being exclusive to one during development. The worst being Epic Games where the UE3 engine was actually crippled for AMD users until AMD called them out on it publicly.

The sad part is the only group that suffers for it are the Gamers. The developers get their sack of money from Nvidia. Both AMD and Nvidia get to either have their Meant to be Played BS or Gaming Evolved nonsense plastered for marketing. It's just either the Nvidia or AMD gamer that suffers in the end.

It's sad that CD Projekt was pulled into these shenanigans also. Just hope CD Projekt resolves this issue.

I have the 6850, my min FPS went up by 43% and my max FPS went up by 34% because of the AMD hotfix and the v1.1 patch.

I get no stuttering on my setup with my single 6850 /shrug

Thanks to the two of you, I will just have to keep hoping it will work out when I get up and running.

Personally i don't know how so many people are having so many problems.

I have a 6950 2gb, i was having around 30fps before the 1.1 patch on full ultra and all i can say is that after the patch i am getting the same or better.

I have had zero problems with this game on my system, from patching to playing to dlc, no problems.

being that the 6950 and the 6970 are pretty much the same cards i would guess you should not have to may problems coming from my own experiance, however i am starting to think that the problems have something to do with geographic area or something as for me in the united kingdom in scotland, i've had no issues where as other people with similar cards but from different back grounds are having them.
Its either that or incompetence.

If it makes any difference i still havn't updated my drivers, i am still using the one that came with the disc, 10. something.

So for me, i am very happy with my sapphire hd6950 2gb purchace, its doing as i wanted it too. My Witcher 2 experiance so far has been fantastic, getting my CE 3 days earlier, getting to play the game half a day before release, being able to run the game at 30-40 fps with ubersampling and everything else on ultra with no added problems, patching to 1.1 gave no issues and i have all the dlc from 1.1 installed and working as well, i am on my second playthrough. From where i am sitting it can only get better with more future optimization.

On a foot note, apparantly the game is incredibly cpu heavy, i'm using an AMD phenom2 3.3 x6 (1100t) BE.

You have also got to remember that people with problems post on forums where as people who don't or have no issues don't, so you may be getting a very negative veiw of how people are doing with certain AMD cards and this could be a minority opinion, it could also be a majority.

Regardless, I would HIGHLY recommend buying Nvidia man. In my 16 years on this earth ( And my 12 years of gaming ) My family has always used Nvidia and haven't had any problems. Their pretty much the elders of GPU's XD It's pretty much personal preference though I guess. In fact I'm also building my own desktop next month and I'm defiantly buying Nvidia.

Thanks Zidane, but I have already purchased AMD and I'm tired of flip-flopping. We'll see how it goes.

There is a hotfix available for AMD cards that should fix up most Witcher 2 issues.

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst115ahotfix.aspx

If your still having issues, I suggest you reinstall after applying the hotfix, then apply the update. I didn't notice in performance increases after patch 1.1 till I reinstalled to fix another issue. After I did this I noticed a jump of about 10 frames.

Using a Q9550 Quad-Core with EAH5770 here, raw FPS count in Fraps didn't seem to change much, but game is much smoother even in the more busy scenes. Previously I had to exit and switch down to Mid or Low when going into busy scenes, but now I have have High fully turned on and still things will be smooth - even though in fraps the FPS count is the same or even less. (e.g. a 25FPS post-patche/hotfix looks as smooth as a 30FPS pre-patch/hotfix)

I'm running a three year old 4870 512 Mb on a Q9450 2.66 GHz and get a stable 30-45 fps on mostly medium settings, although I did disable SSAO for a ~15 fps increase in certain problematic areas. The 1.5b hotfix didn't seem to affect raw performance as such, but I think it might have done away with some microstuttering here and there since it feels a little smoother overall. All in all, the game runs beautifully for such an old system.

Using a AMD 6950 2gb and after patch and hotfix the game still runs fine (30+ FPS on Ultra with Ubersampling1)

I do get the light issues with the AMD hotfix, but I just play at Dawn and it doesnt pop up as much. AMD has said they know of it and will fix it. Im guessing with the release of a new AMD driver and patch 1.2 next week or so the game is finally going to be mostly stable.

I am running an Intel i7 960 with ati 5770 Video crad and have had no real issues to speak of. Some minor frame rate issues outside of Flotsam in the Swampy / Jungle area, buthat is about it. Haven't gotten the Hot Fix nor the 1.1 Patch as yet. I did order an Nvidia GTX 560ti to see how that worked as I have always used Nvidia, until I got this thing, which came with an ati 4850.