PCI-e 2.0 = PCI-e x16 2.0
PCI-e x16 = PCI-e x16 1.0 or 1.1
Based on the details of the motherboard in the following link, the motherboard only has a PCI-e x16 slot otherwise it would have been listed as "PCI-e x16 2.0".
http://www.pcdepot.com.ph/index.php?c=49&p=605
Some motherboards with only a PCI-e x16 slot have compatibility issues with a PCI-e 2.1 video card, but will not have any issues with a PCI-e 2.0 card.
If you are going to buy a Radeon HD 5670 make sure it is the PCI-e 2.0 version to avoid any potential issues.