Originally Posted by JulienDogg
What if it has the 8400 already ? Is it possible to upgrade the 8400 for something actually game worthy ?
Nope, can't be done. GPUs in laptops are soldered directly onto the motherboard, and are not replaceable in any way, shape, or form, without replacing the entire motherboard.
The only exception to this rule are the laptops that use the MXM standard, but only about 6 models were ever made, and people stopped using MXM several years ago. From a marketing perspective, people stopped using MXM because 99.9% of laptop owners out there don't care about gaming, and an even smaller percentage would ever want to upgrade the GPU. From an engineering perspective, replaceable graphics cards don't make sense because you need to deal with different heat, size, and power requirements of graphics cards. This is why the most powerful GPU you could ever put into a 13.3" chassis using today's technology is the GeForce 8400M. Dell designed a laptop that could accommodate the heat, size, and power requirements of a GeForce 8600M, and called it the XPS M1530.