XPS 400 Processor Issue?

I have two computer systems. One is my Dell XPS 400 and the other is a system that I built myself. I did a 3dMark03 test on both systems. My score for the Dell was a little higher overall, but my question is why did my CPU score on my built computer beat my Dell? Is there a possibility my dual core is not working? My computer specs for each system are below. Here are my scores: XPS 400: 11971 Total Score 896 CPU Score (CPU Test 1= 95.2, CPU Test 2= 16.7) Built: 11343 Total Score 944 CPU Score (CPU Test 1= 111.5, CPU Test 2= 15.7) When I look at the CPU charts on tomshardware.com, the Pentium D 930 out preforms the AMD Athlon 64 3700+ San Diego 2.2 GHz on the 3DMark06 CPU test by a score of 1521 to 875. I have it on dual core in by BIOS. Could there be anything else? Thanks, Tony XPS 400 Pentium D Processor 930 with Dual Core Tech (3.0 GHz, 800 FSB) 2GB Dual Channel DDR2 Memory at 533MHz (4 x 512MB) 160GB Serial ATA Hard Drive (7200 RPM) Dual Drives: 16x DVD ROM/16x DVD +/- RW Ultra Sharp 1905FP 19" Digital Flat Panel Monitor Gigabyte Geforce 6800GS 256MB/256 Bit Graphics Card A525 30 Watt Stereo Speakers with Subwoofer Sound Blaster Audigy 2 ZS Gamer Edition Sound Card 13 in 1 Media Card Reader/3.5 Floppy Drive 375 Watt Power Supply Genuine Windows XP Media Center 2005 Edition Built Computer AMD Athlon 64 3700+ San Diego 2.2 GHz ECS KN1 Lite Extreme Motherboard 1GB 184-Pin DDR SDRAM DDR 400 (PC 3200) (1 x 1GB) 160GB Serial SATA Hard Drive (7200 RPM) Dual Drives: 16x DVD +/- RW Hanns-G 19" Digital LCD Display Gigabyte Geforce 6800GS 256MB/256 Bit Graphics Card Logitech X-230 Speakers with Subwoofer Sound Blaster Audigy 2 ZS Gamer Edition Sound Card 3.5 Floppy Drive 450 Watt Rosewill Power Supply Windows XP Pro

Message Edited by hellerusa on 01-31-2007 09:33 PM