JackIT, do you have performed tests based on different components of the GPUs?

I want to know the result on how performs one and the same technology but with different specifications.
And if anyone can perform such test, that would be very helpful.

2 GPUs, with different specifications:

                         Dual GTX1060-O3G                     Dual GTX1060-O6G
GPU/Boost:        1594MHz/1809MHz                      1594MHz/1809MHz
RAM:                 3GB GDDR5/192bit 8008MHz        6GB GDDR5/192bit 8008MHz

* Obviously, the GPU/Boost is the same for both GPUs, would that mean same speed of mining?
* If all parameters are identical with exception of the RAM (3GB & 6GB), how would that reflect to the mining?