Help comparing graphics cards

[Neka_Chan]

Hello,
So I'm planning on buying a laptop with the intention of playing games on it (such as Skyrim, Assassin's Creed III, and Mass Effect 3).
I've never bought a laptop with this in mind before so I really am lost about the different options out there for discrete graphics cards.

Specifically, if a game asks for the following minimum requirements:
NVIDIA GeForce 8800 GT / 9 / 100 / 200 / 300 / 400 / 500 / 600 series or better
- What do the numbers *after* GT stand for?
- How can I compare a NVIDIA GeForce 8800 GT card to a NV GeForce 650M or a NVIDIA GeForce GTX 670MX ?? (and what do "M" and "MX" even mean?)

 

[Novuake]

OK well easiest first. M or MX are mobile(laptop) cards.

the first number after GT is the generation. So GT6xx is the newest and 8800GT the oldest. The second number determines the class of the card. The higher it is the more powerful the card.

Here is a way to easily compare cards.

http://www.anandtech.com/bench/Product/660?vs=647

 

[bigshootr8]

Mobile chips are a bit different. I would think though as long as you aren't out to max out your games that a 670MX should be sufficient. I would take a look at this thread it goes into more about the chip. I would say that the MX is like a gtx and the M is more like a gt.

http://www.notebookcheck.net/NVIDIA-GeForce-GTX-670MX.82603.0.html