Low 3dmark Vantage score

Alright so i installed windows again, put on nvidia drivers and chipset drivers. Im getting 17,300 however this still seems low. Look at the link below, what does he have that i dont?

http://www.3dmark.com/3dmv/2794463

He has 2 GTX 460's.

Said he has one card though and SLI was off...must just be messed up with 3dmark vantage or something that isn't identifying the two cards?

At any rate i put it on performance settings on and im getting 21 000. This is physx on the GPU so i guess it will be a little lower.

Are these acceptical scores with m y 2500k at 4.6? i would think the power supply is running short but it is a corsair CX600 builder series, with my q6600 overclocked to 3.4 with the same video card it ran fine so i dont think that is the issue.