I really wanted a way to entertain myself when things are slow at work - and I didn't want to have to drag a lot of gear. Decided to upgrade to a new laptop, and took a shot that I could get one that would run Rocksmith 2014 - so all I would need would be my laptop, my guitar and the cable.
After doing a lot of research, I settled on a "Sleekbook" from HP. It's 14 inch display, so small enough to be portable but still big enough to see reasonably well.
The trick to getting the Rocksmith software (hate to call it a game) to run on a PC is the processor. I had tested it on the wife's Toshiba laptop with an Intel processor, and found that it didn't really run all that well. After doing lots of research, I decided the AMD processor was the way to go. And I was right, the game runs beautifully with Windows 8.1 installed.
The difference between Intel equipped laptops and AMD is the way they handle graphics. Intel uses integrated graphics, meaning the processor also handles the graphics. While integrated graphics have improved, it's still not the best way to do things. AMD, on the other hand, has a Radeon graphics card to handle the graphics, freeing up the processor.
I was able to get an open box return, with AMD's 1.7 GHz quad core processor (with boost up to 2.7GHz) for $417 on Ebay (and it's touchscreen, which is nice for Windows 8.) Windows 8 ran well enough, but 8.1 was freezing a lot - which is why I suspect it was a return. All it needed was the BIOS updated, and it's run flawlessly since.
The Rocksmith software runs beautifully on it - very smooth with graphics turned up, not hesitation or lag, not freezing - just the way it should. It's made passing the time when things are slow a lot of fun. So if you are considering Rocksmith for a laptop, it's possible to get it to run well.
Playing Rocksmith on a laptop, it's possible - and you don't need to have the full specs of a gaming machine - but consider the AMD quad core processors. Much better than the Intel by a lot shot (although it would probably run decent with Intel's i7 processor, but still nice to have a dedicated graphics card.)
The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."