Is there anything special about engineering samples?

I have an i7 2920xm in my possession that I pulled from an m18x I'm parting out. Is there anything special about an engineering sample? Here's a couple of pics of it.

I assume not. It's just an early release veersion of a couple for manufacturers to test right?

http://cloud.tapatalk.com/s/57c71bd288207/P_20160829_215605.jpg?
http://cloud.tapatalk.com/s/57c71bfb5199a/P_20160829_220530.jpg?


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My i7-2920XM ES2




Some ES versions may have increaseed Cache, decreased clocks, some bugs in AVX and so on. It is just test CPU that was used to test if the functions like AVX, AES work properly. My ES2 lacks AES as it was probably disabled due to bugs and was meant to get re-enabled in later versions (you have stepping 6, I have 5)

You have stepping 6, I have stepping 5 so previous version of your one. My s

ES versions are often built on very high quality silicon and they can have more or due to bugs less overclocking capabilities. It's just a lottery

They can't be sold but Intel doesn't give a damn until you call them and yell "Hey guys I have bought ES CPU lol"

More info here: http://forum.notebookreview.com/thr...2920xm-es-cpu-q15g.752227/page-2#post-9696542