Thanks HarryPalmer,
I don't know how I managed to have three macs with the same GPU performance in Cinebench. ha-ha. This mini server, my 2007 iMac with discreet pro graphics and 2010 air all score nearly the same. ha-ha. Actually, the 4.25 year old iMac wins by a couple FPS.
Now, my two 9400 M machines score HALF these other units, around 6-7fps.
Yes, a discreet GPU in the server would have been nice, but I doubt they'll ever put one in the "server." The best you'll get is that eventually they might put a lower end Quad in the consumer Mini, which could be the closest we get to both of best worlds, but then we might not have the dual HDDs. Apple seems to have never given "servers" much in terms of GPU.
However, I'm actually happy enough how it is now.
Nevertheless, next year, if the next intel integrated does jump 1.5-2.0x, that would put you close to a low end discreet graphics as is in the mid-Mini now.
I didn't want to wait on the server longer and being in the U.S., $999 or less is a really good deal. Therefore, I got it now. If next year's is so tempting in processor or integrated GPU improvements, I will sell and buy again.
Otherwise, this is obviously my quickest Mac yet.
I'm going to try some 1866 RAM this weekend maybe, if it changes the cinebench any on GPU test, I'll post back.