Yesterday I ran into my local Apple Store to check out the newest riMac, and I tried to run the HTML5 Fish Bowl test (http://ie.microsoft.com/testdrive/performance/fishbowl/) on that base model riMac (i5, m290). When set to 2000 fishes, fps drops to an average of 20 (remained at 16 for a lot of times). When set to 250 fishes, fps drops to an average of 30 (around 20+ for the most of the time). Comparing to the normal iMac 27', it seems that the normal iMac 27' beats the riMac in this test. It generally has higher fps. Comparing to my home PC, which has i3 3225/GTX 650 Ti, dual Dell 2412M, my PC starts to drop frames after 1000 fishes with a bunch of programs and Hearthstone running on background. I am not a hardcore tech guy, so I did not know how meaningful this is, but I just want to share this piece of information with you guys.