MegaWizard Altsyncram generated component uses more M4K blocks then reported

The Megawizard isn't overly smart. I believe it makes all the rams 512 deep and then stitches them together. This simple methodology works 99% of the time as most RAMs are close to powers of 2. Yes, it could be smarter, but it's a lot better than the old days at X where you had to stitch every single RAM out of RAM primitives. If I have to do it once in a while, it usually take a few minutes and that's it. (But file a request with Altera, as there's no reason it couldn't do this...)