Some of you might remember the T540p I got for free from work a couple of years back - after its mainboard died I rebuilt my older personal T540p with the the remaining good components and a donor W541 I bought on eBay.
I'm quite pleased with the result. Its revised specs are: i7 4930MX, Quadro K2100M, 32GB DDR3L RAM, AUO B156HAN01.2, an HP Blu-Ray drive and an Intel AX210 WIFI card.
You get more recent security patches and game enhancements, but I'm not sure if it really makes that much of a difference.
I did something similar with the GT730M where I installed desktop Kepler drivers, that gave me two years of security patches extra but didn't really do a lot for performance
I'm just using Optimus through the Geforce drivers I installed with NVcleanstall
Are the Geforce drivers much better? I still have my W540 somewhere around here and I want to find a good use for it.
Last game I tried running on it was AOE 4 an it was pretty dire.
You get more recent security patches and game enhancements, but I'm not sure if it really makes that much of a difference.
I did something similar with the GT730M where I installed desktop Kepler drivers, that gave me two years of security patches extra but didn't really do a lot for performance