1&1 isn't what I'd consider a 'quality' hosting company. Also, based on the bargain price (and the lack of documentation to the contrary), that's likely consumer-grade (rather than enterprise-grade) hardware. It's also more money per month than I'm currently paying.... although the system stats are substantially better.
I don't think any of it is relevant to the current discussion, but I wouldn't want someone reading this to think that was a 'good buy' or anything like that. They're likely to be disappointed when a drive goes bad in their dedi box, and the hosting company takes it offline for half a day while they unrack, service, and rerack the machine.
I would be interested in some more configuration info on ES, though. Anything that can be done to lessen its memory requirements is time well spent.