I'll be buying a new laptop as my workstation for building games, Mostly 3D but not hard core. 
 

I'm stuck at choosing between these 2 specs below. Does this really matter and if so, can some one tell my how and why it matters. 

Choice1:

Intel core i5-8250U (8th gen Kabylake refresh)(6 MB Smart Cache, 1.6 GHz Base with Turbo Boost up to 3.4 GHz) 4 cores 8 threads

RAM 8 GB DDR4 (2400 MHz)

GPU 2 GB DDR5 Nvidia MX150 256 bit

SSD: yes

Choice2:

Intel core i7-7500U 2.70GHz Base Processor (4M Cache, up to 3.50 GHz Boost) 2 Cores, 4 Threads

RAM 4 GB DDR4 (1800 MHz)

GPU 2 GB DDR5 Nvidia GeForce 940MX 256 bit

SSD: No

13 minutes ago, Promit said:

If nothing else, I consider 4 GB of memory unacceptable in a modern dev machine. I have a 4 GB surface and it struggles to actually load and build our project due to memory issues. Not struggles to run it - struggles to build it.

Well, noted, thanks for the thought. 

17 minutes ago, swiftcoder said:

Choice 1 is unequivocally the better machine. It has twice the RAM, twice as many CPU cores, an SSD instead of a slower hard drive, and a GPU that is a full generation newer.

It does have a lower base clock speed, but as long as you are plugged into wall power, that shouldn't make much of a difference.

I see, Thanks, so the MX150 is newer than GeForce 950?

7 minutes ago, swiftcoder said:

Yes, the MX150 is Pascal (and roughly equivalent to the desktop GT 1030), the 940MX is the older Maxwell.

Alright, I'll keep that in mind.  Thank you.