by Daube » Fri Aug 12, 2016 6:35 am
Laptops are not a good choice for simulators.
Their CPUs are weak and their video cards (GPU) are also quite weak. These limitations are there to limit the heating problems.
The planes you are looking for exist. Liners like the 747, 737 and the 777 are available is extremely high quality, complexity and realism. You'll have to take a look at the products from PMDG and iFly, mainly.
For the Airbus, there is currently only one realistic offering, from Aerosoft, who made the A318/A319, and the A320/321 in two different packages. The realism and "completeness" are quite good, the graphics are excellent. But another company, named FlightSimLabs (or FS Labs) is about to finish the development of their A320 and that one will surpass the one from Aerosoft: it will be even more realistic and more complete in the avionics. But it should not be available before a few weeks at least.
Anyways, your major problem here is that complex airplanes usually require a LOT of CPU power. Else the fluidity of the simulator is quickly going to get catastrophic, down to unplayable.
There is one plane though, which is known to be one of the most realistic ones (very very high level, on par with PMDG) and still quite light on the performance: the Dash Q400 made by Majestic.
This plane is one of the references in terms of realism nowadays.
I have no idea how it would perform on your computer, though...
Also, the prices might scare you a bit. These planes are all above the 70/80 dollars each. And if you use P3D insteal of FSX, then the prices can raise up to 140 dollars for the PMDG 777, for example. This is also something to keep in mind. Quality and realism come at a price.