This is something that depends upon options rather than a model of laptop.What's best right now won't be best in the near future either.So you just have to look around at what's the best gaming laptop.You should begin by sorting prices from High to low.It's expensive at the bleeding edge.
I'd go with ATI
Not all of them can, it depends on what kind of graphics card you have in your laptop. I would suggest going to this link: http://www.nvidia.com/page/geforce8.html It helped me find the best graphics card for my laptop.
The best gaming laptop with 3D graphics would be Dell's Alienware M17x. It has an Intel core i7 940XM Extreme Edition processor and NVIDIA GeForce GTX 285M graphics. Market value is $1799, but Dell's Price is $1599.
Lenovo y580 i7
Any laptop with an i7 processor and a ati or NVidia Graphics would work just fine.
Alienware laptops are the best for high end Gaming
Laptop graphics cards are generally considered to be impossible to upgrade.
The MSI GT660R-004US is by far the best gaming laptop available. It surpasses all its competitors for durability and has the ability to give high quality graphics.
The straight and simple answer is no. Laptops are not akin to desktops in which they can be upgraded as one wishes. The integrated graphics in your Toshiba is the best you will get from that machine internally. The only other option you have is an external video adapter which attaches through USB but you will not get high-performance graphics out of that to a level at which you can play a game, for example. If you want a gaming laptop, then you need to get a gaming laptop.
What graphics card? Probably not, unless it was made for your specific model or brand, or if both the card and your laptop are MXM.
Intel core i 5 with 1028 mb of graphics are the best laptop specs for playing battlefield 4 and skyrim.
The trouble with laptops is that the good ones just aren't cheap enough ... The graphics are only of the integrated kind, so perhaps not the best. portable laptop, a netbook isn't always your best option