SSAO Never Works. Maybe My Card Is Old?

Questions & Answers
1

I have a ATI Radeon HD 4800 card from 2009. I think it satisfies the hardware requirement for SSAO image effect, however whenever I turn it on, it looks like following:

Note the diagonal separation of the screen where top left is filled tiny dots while the bottom right corner has no effect. Has any of you seen this before?

2

Similar issue here. Trying to determine if it’s a scaling problem in my case. Only seems to do that for Unity’s terrain, though. My card is equally old, but on several occasions, it has worked fine, and quite well, too.