retoohs, If you have a high end laptop with a graphics card, then using a large monitor makes very good sense. The graphics card you are using will be maximised for the best performance, right out of the box, and you do not have to worry about pipelines, Gamers may, I don't.
John what you have done is fine and graphics on the motherboard are not good, only cheap. RGB, as I said, is a wide gamut colour working space. sRGB is what the internet uses. Most printers can make use of Adobe RGB or sRGB. Set the camera to use Adobe RGB, post process in Adobe RGB, save the finished results in Adobe RGB then when you want to print, convert to whatever your printer can handle. If you post an RGB photo to the internet it will be converted automatically by flickr, Photobucket etc. to sRGB. Photoshop will convert to sRGB when you use the resize for internet.
Here's a chart that may help anyone who is interested. By the way John this giga and byte expert is an Electronics Engineering Technician as well as being a Civil Engineer. However all that was before I retired 15 years ago, so I am beginning to struggle to keep up with all this new technology stuff.