How much of the Desire HD is the same to the Xperia 2011 line?

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After doing some research I found this phone (desire hd) has many similarities to the sony xperia 2011 line (me personally having an Xperia Ray). So I was wondering which hardware are actually the same like the cpu and the gpu, they both have have an 8.1 mp camera but are they both developed by sony? , I've been looking through this development forum, and have found some interesting roms I would like to port over, as the ray development is quite dry, and if the camera is indeed the same, then I wouldn't have to port over that driver, (which in jellybean roms would mean that the camera would actually work in the ray because jellybean roms for xperia don't), if their are anymore similarities then cross development between xperia 2011 line and the desire hd wouldn't be too hard. I will make a custom rom at some point in the future, but don't have enough knowledge yet for kernel or driver development, or how the android system works yet, but once that time comes, I will seriously consider porting it for this phone!

I think that you've got a long way to go before you just jump in to porting stuff over. As far as the specs go, you can check the Wiki here for some of that, you can also use google for many of the questions you have asked.

I've tried researching, but I haven't found enough detail yet (much like the wiki on here). I have successfully ported a desire s rom, but not a desire hd one, as they have some screen issues, which is too technical for me to get in to at the present time. But camera drivers is one of the key things I wanted to find out about, and there is just nothing I can find out about it. I know the the iPhone 4S camera is exactly the same but not sure about the desire hd.

There are two types of camera for dhd, some are produced by Samsung and some by OmniVision.
So it definitely hasn't the same camera of Ray.
Sent from my Desire HD using Tapatalk 2

only processor is the same.
chipset is different. radio is different.
camera is different. source is closed.
-> chance of a working port 0%