SysMark 2004
Office Overall:	Points	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	255
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	238
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	235
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	235
ECS PN2 SLI2+ (NF 680i SLI 266/800 C2D E6600)	302
Asus P5N32-SLI Premium (NF 590 SLI 266/800 C2D E6600)	300
Foxconn 975X7AB-8EKRS2H (975X 266/800 C2D E6600)	301
MSI 975X Platinum (975X 266/800 C2D E6600)	300
Biostar TForce P965 Deluxe (P965 266/800 C2D E6600)	301
Gigabyte GA-965P-DS3 (P965 266/800 C2D E6600)	301
Foxconn P9657AA-8KS2H (P965 266/800 C2D E6600)	300
MSI P965 Platinum (P965 266/800 C2D E6600)	300
Gigabyte GA-965P-DQ6 (P965 266/800 C2D E6600)	296
Gigabyte GA-P35-DQ6 (P35 266/1066 C2D E6600)	306
MSI P35 Platinum (P35 266/1066 C2D E6600)	305
MSI P35 Platinum (P35 333/1066 C2D E6750)	318
Biostar TP35D3-A7 Deluxe (333/1333 C2D E6750)	313
Asus BLITZ Formula (P35 333/1066 C2D E6750)	320
Asus BLITZ Extreme (333/1333 C2D E6750)	310
Communication:	Points	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	258
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	247
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	247
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	244
ECS PN2 SLI2+ (NF 680i SLI 266/800 C2D E6600)	276
Asus P5N32-SLI Premium (NF 590 SLI 266/800 C2D E6600)	275
Foxconn 975X7AB-8EKRS2H (975X 266/800 C2D E6600)	275
MSI 975X Platinum (975X 266/800 C2D E6600)	276
Biostar TForce P965 Deluxe (P965 266/800 C2D E6600)	273
Gigabyte GA-965P-DS3 (P965 266/800 C2D E6600)	271
Foxconn P9657AA-8KS2H (P965 266/800 C2D E6600)	269
MSI P965 Platinum (P965 266/800 C2D E6600)	274
Gigabyte GA-965P-DQ6 (P965 266/800 C2D E6600)	271
Gigabyte GA-P35-DQ6 (P35 266/1066 C2D E6600)	276
MSI P35 Platinum (P35 266/1066 C2D E6600)	275
MSI P35 Platinum (P35 333/1066 C2D E6750)	287
Biostar TP35D3-A7 Deluxe (333/1333 C2D E6750)	281
Asus BLITZ Formula (P35 333/1066 C2D E6750)	290
Asus BLITZ Extreme (333/1333 C2D E6750)	278
Document Creation:	Points	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	282
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	258
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	258
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	257
ECS PN2 SLI2+ (NF 680i SLI 266/800 C2D E6600)	345
Asus P5N32-SLI Premium (NF 590 SLI 266/800 C2D E6600)	344
Foxconn 975X7AB-8EKRS2H (975X 266/800 C2D E6600)	344
MSI 975X Platinum (975X 266/800 C2D E6600)	343
Biostar TForce P965 Deluxe (P965 266/800 C2D E6600)	345
Gigabyte GA-965P-DS3 (P965 266/800 C2D E6600)	344
Foxconn P9657AA-8KS2H (P965 266/800 C2D E6600)	347
MSI P965 Platinum (P965 266/800 C2D E6600)	346
Gigabyte GA-965P-DQ6 (P965 266/800 C2D E6600)	345
Gigabyte GA-P35-DQ6 (P35 266/1066 C2D E6600)	348
MSI P35 Platinum (P35 266/1066 C2D E6600)	344
MSI P35 Platinum (P35 333/1066 C2D E6750)	368
Biostar TP35D3-A7 Deluxe (333/1333 C2D E6750)	355
Asus BLITZ Formula (P35 333/1066 C2D E6750)	370
Asus BLITZ Extreme (333/1333 C2D E6750)	363
Data Analysis:	Points	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	215
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	214
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	204
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	206
ECS PN2 SLI2+ (NF 680i SLI 266/800 C2D E6600)	289
Asus P5N32-SLI Premium (NF 590 SLI 266/800 C2D E6600)	290
Foxconn 975X7AB-8EKRS2H (975X 266/800 C2D E6600)	290
MSI 975X Platinum (975X 266/800 C2D E6600)	290
Biostar TForce P965 Deluxe (P965 266/800 C2D E6600)	289
Gigabyte GA-965P-DS3 (P965 266/800 C2D E6600)	292
Foxconn P9657AA-8KS2H (P965 266/800 C2D E6600)	290
MSI P965 Platinum (P965 266/800 C2D E6600)	290
Gigabyte GA-965P-DQ6 (P965 266/800 C2D E6600)	288
Gigabyte GA-P35-DQ6 (P35 266/1066 C2D E6600)	293
MSI P35 Platinum (P35 266/1066 C2D E6600)	295
MSI P35 Platinum (P35 333/1066 C2D E6750)	312
Biostar TP35D3-A7 Deluxe (333/1333 C2D E6750)	306
Asus BLITZ Formula (P35 333/1066 C2D E6750)	308
Asus BLITZ Extreme (333/1333 C2D E6750)	302

The Asus BLITZ Extreme motherboard performs fairly well here in SYSMark2004, although it's not quite as quick as the DDR2 motherboard. Still I doubt if you'd notice as the system would be limited by you in this case.