SSD drive - good idea for mac upgrade

[cruzio]

http://www.amazon.it/gp/product/B00BQ8RM1A?ie=UTF8&camp=3370&creativeASIN=B00BQ8RM1A&linkCode=xm2&tag=cruziolivejou-21

vs

http://www.amazon.it/gp/product/B00C9TECFO?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A2HNTIE6EB5Z5U&tag=cruziolivejou-21