Some questions on no. of threads and work groups

I have some background on  NVIDIA, and so to learn OpenCL for Intel, I would like to correlate.

In case of Nvidia, we have following rules :

1- Warp size: 32 (or in some cases 64)    

2- Maximum no. of resident blocks per multiprocessor: 8 

3- Maximum no. of  threads that can be resident on a Multiprocessor: 768 ( in older cards)

4- Amount of shared memory available per workgroup: 64 KB (48 + 16 KB )

5- No. of threads per workgroup: 512 (on latest cards it is 1024)

6- A workgroup runs only on a single Multiprocessor i.e half on MP#1 and other half on MP#2 , is not possible.

I would like to know these values for Intel HD graphics. 

I will really appreciate if somebody can point me to some links where I may be able to educate myself on this. 

Where would I get such info for intel HD graphics? Specifically I have Intel NUC with Celeron N2820 SoC