Hey Charon. First, check out your CMOS settings, regarding that low CPU score. As mentioned in this thread:
viewtopic.php?f=49&t=2617, there is some weirdness in the power settings for the CPU. On Gigabyte motherboards, these settings are in a menu called "Advanced CPU Core Features", and this is how they should be set:
Turbo Boost-----Disabled
CPU Cores Enabled-----All
CPU MultiThreading-----Enabled
CPU Enhanced Halt (C1E)-----Enabled
C3/C6/C7 State Support-----Enabled
CPU Thermal Monitor-----Enabled
CPU EIST Function-----Enabled
Bi-Directional PROCHOT-----Enabled
(You can re-enable Turbo Boost later if you wish, I just know that these settings do work). Those settings will either be in one menu labeled something else, or scattered about in various menus. Regardless, if you have a choice to let the motherboard determine these automatically, be sure it's forced to on (on gigabyte boards, this means "Enabled" instead of "Auto"). Then run Geekbench again, and see if your numbers are sane. If they are, then we can figure out whats going on with your graphics. I'm wondering if it too is some sort of power management feature that I'm not aware of...it would explain why it's happening to both you and your ATI card and my nvidia card.
In other news, my 4GHz OC system is now no longer retarded in the CPU category--Geekbench: 10508, and 5.24 Cinebench CPU. Still getting the hilariously consistent 13.49FPS on the GPU though!