How to upgrade laptop to ssd - ASUS Computers & Internet

SOURCE: can ssd and 8gb RAM speed up render times

OK, so you have a laptop. That is immediately going to limit your upgrade options. The CPU and GPU provide the muscle when it comes to rendering but those upgrade options are out when it comes to laptops. What is left is going to be about keeping the data flow to and from the CPU and GPU as fast and smooth as possible as well as keeping your operating system free from irrelevant processes soaking up resources.
I'm going to make the assumption that you work with large files, possible raw image data etc. In that case more memory is going to be better since that will need to less swapping data between hard disk and RAM. Note that if you run Windows you need 64bit Windows to benefit from memory over 4Gb (well -ish). The less and faster data can be swapped the more efficiently the CPU and GPU can be fed data to work on. I would heartily recommend you upgrade the memory as far as you can and that you reinstall your entire system to a nice fast SSD. The bonus benefit of this is that a re-install will tidy up any clutter on your computer too. I have heard reports of graphic designers having cut rendering time from 10h to 1h just by re-installing their systems.
To keep your computer working happily in the future it might be worth looking into keeping a restore image of your freshly installed system on removable media so you can quickly re-install your system once or twice per year to keep things running smoothly.