Its hard to say yes or no cause it is based off your website and/or application. I would say a basic site / wordpress running a tuned nginx setup would easily run this. Just do your homework.
If you are going to host WordPress I would use the 1GB - WP is a resource hog and needs the extra RAM
I disagree, it all depends on configuring the server and its services best suited for the resource you have. But yes right, there is a limit to use it can be tweaked before adding more RAM or processing power..
But regarding WordPress, my 512 MB VPS along with a 512 MB Swap is able to handle a free control panel with 6 domains.. 3 of which runs WordPress, 1 runs a gallery applications (CopperMine) along with 2 static..
Two of the WordPress site handles 50 times more visitor each day than the number is questions..
Running CentOS 6.5 x32 along with 512 MB RAM and 512 MB Swap.. Every wordpress has some caching plug in enabled !!
I'm using the $5 package and I'm running 3 sites with no issues. It all depends on configuration!
