Slot for dedicated graphics on T440p with only integrated graphics?

So, some T440ps come with both dedicated and integrated graphics, and some only have integrated. Does anyone here know if the models with only integrated have an empty slot to add a dedicated card? And if they don't, what is filling up that space (maybe the chassis is different, or there's an extra hard drive)?

I'm in the market to buy a T440p. But there are so many combinations! i5 or i7 dual core with discrete and/or integrated; i7 quad core with discrete and/or integrated; etc.

Ideally, I'd get one with i7 quad and discrete/integrated, and then later on upgrade the screen, ram, and hard drive. My usage is: graphic design using the adobe suite, and sketchup; light video and audio editing; web development; web research, spss, etc.

To meet my sub-$1000 budget, I'm trying to figure out what to sacrifice: i7 quad core or dedicated graphics?

 

you can not add a dGPU to many laptops that do not already have it ( unless you can do a motherboard swap with a dGPU board that fits the chasis and heatsinks.) of those it is a very very limited mumber of gaming and workstation laptops that can add or change their GPU's by an MXM card ( unless done externally like the 13" MSI and Alienwares )

 

Great to know! Thanks, KCETech1.

edit: Also, since I can't add/upgrade a graphics card, but I can (at least on the T440P) upgrade the CPU, then I think that answers my "what should I sacrifice" question. I should start with a i5 or i7 dual core (rather than quad core), and a dedicated graphics card, and in the future if I feel a need to upgrade the CPU, then I have that option.