Which is the best RAM for this laptop?

quality, reliability>pricing, performance

In-depth specs:

http://www.notebookcheck.net/Review-Toshiba-Satellite-L50-A-10Q-Notebook.101183.0.html

Basic specs:

Operating System
Windows 8.1 64-bit
CPU
Intel Core i7-4700MQ @ 2.40GHz
Haswell 22nm Technology
RAM
8.00GB Single-Channel DDR3 @ 798MHz (11-11-11-28)
Motherboard
TOSHIBA Portable PC (U3E1)
Graphics
Generic PnP Monitor (1366x768@60Hz)
Intel HD Graphics 4600 (Toshiba)
2048MB NVIDIA GeForce GT 740M (Toshiba)
Storage
931GB...

Which is the best RAM for this laptop?