4G GTX 950M (DDR3) vs 2GB GTX 960M (DDR5)

[Rigaleb]

In a search for a video editing and gaming laptop laptop I've narrowed it to the following comparison:

Both have i7 4720HQ with 2600 Mhz
8 gb RAM and a 7200 rpm hard drive but i cannot decide on the graphics card
One has 950M GDDR3 with 4GB and the other hase 960M GDDR5 with 2GB. Which one should I choose. Does the +2GB on the 950M matters or should I go for the GDDR5 which is faster ?

 

[CTurbo]

The 960M is way faster

 

[unreal9400]

GDDR5 because of the higher memory bandwidth.

 

[Rigaleb]

So, the size of the memory does not matter that much. I also have the option to add some 100 $ more and choose a GDDR5 with 4GB. Is it worth it ? Or 2GB is enough. Let's say, for example if I would run Adobe Premiere rendering some HI-RES vidoe and at the same editing something in photoshop

 

[Rigaleb]

Besides this, regarding the processor, is it a big difference between i7-4750 HQ (2 ghz ) and i7 - 4720 HQ (2,6 ghz) ? I mean, will I feel it. Cause the one with 4720 is out of stock and i don't know if I should wait or not

 

[unreal9400]

The i7 4750 HQ has better integrated graphics ( Intel Iris Pro 5200 ) while the i7 4720 HQ has (HD 4600).
Due to the lower turbo boost of 3.20 GHz the i7 4750HQ will run at turbo boost speed longer compared to the 3.6 GHz i7 4720 HQ before going back to stock speeds.
Both CPU's are powerful enough to handle either GTX 950M or 960M.