For some one who keeps complaining that nobody reads their posts it's surprising that you don't bother to read other people.

Codex quite clearly said

Is IL-2 CoD supporting dx 10.1 or 11 ?

Regards

CoD uses DirectX 10 features in windows Vista and Windows 7 and DirectX 9 in Windows XP.

Because DirectX10 is a subset of DirectX11 if your running Windows 7 or vista with DirectX 11 you just use DirectX11. When the developers decide to implement the DirectX11 only features you will need a DirectX 11 graphics card to access those features.


from Wikipedia
"Direct3D 11 runs on Windows Vista and Windows 7. It will run on future Windows operating systems as well. Parts of the new API such as multi-threaded resource handling can be supported on Direct3D 9/10/10.1-class hardware. Hardware tessellation and Shader Model 5.0 require Direct3D 11 supporting hardware.[32] Microsoft has since released the Direct3D 11 Technical Preview.[33] Direct3D 11 is a strict superset of Direct3D 10.1 — all hardware and API features of version 10.1 are retained, and new features are added only when necessary for exposing new functionality. This helps to keep backwards compatibility with previous versions of DirectX."
Cheers!

Turned another side, would the game look nicer (recent amazing visual effects) while changing from (for example) Nvidia 260 to 5xx serie which - as far as I understand - does support a feature rich set of visual effects on top of the old ones.

Thanks

The game gives dx10_0 in the conf file. try to change that for 10.1? Won't work :)

Who cares if you are using professional software that takes advantage of the i7's hyperthreading! That has nothing to do with gaming or Cliffs of Dover. All you're doing is trying to get people to throw away hundreds of dollars on something they don't need. When people ask, "What's a good system for Cliffs of Dover?" they're not asking," what's a good system for Cliffs of Dover and running professional video editing software?". Understand?

They don't want to throw away thousands of dollars on a system that's going to be spanked by an $800 one a year from now. They don't care if the i7 will allow them to render their CGI nerd fantasies 40 seconds faster. Nobody cares about that!

Dude, are you blind? I told them to buy a cheaper cpu then others suggested. Seriously you need to read... They are saying to buy sandybridgre 32nm cpus, I said to buy the older, cheaper but currently comaparable Nehalem range which is gen 1 i7. I also never suggested to by a gulftown cpu. Now next time read the post before you respond, or atleast try to know what the differance is between cpus. Kthx

He also said there is no performance differance between dx10 and dx10.1 other then standardizing the chips. Then he said dx10.1 = dx11 but dx11 has more features. You do understand how to use formal logic right? If A=B (which he said didnt change anything other then a hardware requirment), then he said B=C (with C adding additional features), but then said that DX11 other then additional developer features does not increase performance over dx10.1 and therefore he is saying A=C and C just has standardized requirments and additional end features, but no performance improvement.

As for dx11 on vista - I actually did not know that they made it back compatible now, I cant believe I missed that (and when I am wrong or learn something new I always mention it if you read my posts).
Now to be nitpicky DX11 is a subset of DX10, which is quoted in your quotes (so I imagine this is a simple mistype error). Given that DX11 is a huge leap in reality. Shader model 5 is alot faster and efficient for ssao and other lighting effects than dx10.1. Also DX11 has the abilitiy to use rasterizing/ray tracing which we will see in the future, along with tesselation for planes and especially terrain (huge detail boost and easy and fast for devs to use) along with direct compute which I suggested mid last year should be used for the sea/water, also for smoke and particle physics which would enable a plane flying through a smoke collumb to disturb the smoke/particles realistically which would be incredible (as well as clouds). I was pretty much firmly dismissed especially after the news that DX11 would not be in release, I believe one of the devs even said that they would only use tesselation for plane wheels... I said that was absurd and laid out why it should be used. Now I dont think it was due to me but the interview I linked obviously shows a major 180 interms of using dx11, especially tesselation. Also they will use direct compute for FM physics and they need DX11 to take full advantage of modern cpus, which again I strongly advocated for and was told that it would not make a differance in performance/was too hard/no one has them, and now obviously the multithreading is the big thing this game needs to improve performance (so I was right again).

Now this doesnt mean by any stretch that I am always right, but over time I have been pretty much spot on with predictions.

my quote actually said
"Direct3D 11 is a strict superset of Direct3D 10.1" it is correct.

"Because DirectX10 is a subset of DirectX11 if your running Windows 7..."

Really? I was talking about what you typed, not what you quoted (just noting what I thought was an unintentional discrepency).