We are now able to find out what kind of power is being used by our test system and the associated graphics cards installed. Keep in mind; it tests the complete system (minus LCD monitor, which is plugged directly into an AC wall socket).
There are a few important notes to remember though; while our maximum power is taken in 3DMark06 at the same exact point, we have seen in particular tests the power being drawn as much as 10% more. We test at the exact same stage every time; therefore tests should be very consistent and accurate.
The other thing to remember is that our test system is bare minimum - only a 7,200RPM SATA-II single hard drive is used without CD-ROM or many cooling fans.
So while the system might draw 400 watts in our test system, placing it into your own PC with a number of other items, the draw is going to be higher.
Power usage is the main aim for the purpose of this article, and Intel manages to keep its power usage below that of the AMD system at idle speeds. However, it is slightly higher under load.
Now, this is still quite impressive considering its CPU has a 20watt higher TDP than the 4850e processor. We can only put this down to the fact that the GIGABYTE board is extremely energy efficient at its job when throttling the CPU.