I PCI-e 3.0 necessary?

[zniff]

i just got a ASUS GeForce GTX 1070 ROG Strix Gaming and some people say i need PCI-e 3.0 while i got PCI-e 2.0.

so im wondering is the cange necessary or should i just leave it be?

ive heard some say that the PCI-e 2.0 might damage the gpu.

 

[ubercake]

No. My 1080 doesn't even use all of the bandwidth available on my PCIe 2.0 board and the GPU gets to 100% utilization under load all of the time.

A PCIe 2.0 bus will not damage your GPU in any way. That's horse manure.