PCIe 2.1 v 3.0?

[MRCmegarallycar]

I need help deciding between these two cards and the only difference is the PCIe slots. And its a 25$ Difference, is it worth it?
http://www.amazon.com/HIS-Radeon-Express-Graphic-H775FN1G/dp/B008OGBG6Y/ref=wl_it_dp_o_pC_S_nC?ie=UTF8&colid=2A5DUPMQZIVCW&coliid=IMR8ER1PZ8CO1
http://www.amazon.com/HIS-Express-Profile-Graphics-H667FN1G/dp/B0062HIQLU/ref=wl_it_dp_o_pC_nS_nC?ie=UTF8&colid=2A5DUPMQZIVCW&coliid=I10RYXGKNLPG4C

 

[smeezekitty]

The difference is definitely more than the PCI-E slots. The 7750 is a newer faster card.

Whether it is worth it is up to you.

 

[Raheel Hasan]

http://www.techpowerup.com/reviews/ASUS/HD_7750/26.html

Get the 7750 it is around 40% faster than 6670