Overclocking Results:

stock overclocked single gpu (core) speed: 325mhz 454mhz single memory speed: 600mhz 827mhz sli core speed: 325mhz 436mhz sli memory speed: 600mhz 776mhz

we did two separate overclocking tests on the msi nx6800 td-128e cards. the first tested a single card as normal, while in the second test we attempted to overclock both cards at once in an sli setup.

a single msi nx6800 td-128e videocard proved to be a very good overclocker, achieving a 454mhz core speed and an impressive 227mhz boost to memory speed, maxing out at 827mhz.

we managed to get the core and memory speeds even higher individually, to 457mhz and 843mhz respectively, but at these settings they would not work together without artifacting, so we had to step them down a bit.

We had few expectations about overclocking the pair of MSI NX6800 TD-128Es in an SLI setup, since our previous attempts with other cards met with limited success. Our experiment proved to be a success though, as the cards achieved considerably better than half the speed gain shown by the single card. We settled at 436MHz core/776MHz memory for the dual-SLI setup.

PCStats Test System Specs:

processor: amd athlon64 4000+ clock speed: 12 x 200 mhz = 2.4 ghz motherboards: gigabyte ga-k8nxp-sli (nf4-sli) gigabyte ga-k8nsnxp-939 (nf3 ultra) videocards: msi rx800xt-vtd256e gigabyte gv-rx80l256v powercolor x700 pro ati radeon x800 xl msi nx6800gt-t2d256e albatron trinity geforce 6600gt agp msi nx6600gt-td128 albatron trinity pc6600 asus extreme n6600top/td/128m/a gigabyte gv-3d1 (single mode) gigabyte gv-3d1 (sli mode) msi nx6600gt-td128e (single mode) msi nx6600gt-td128e (sli mode) powercolor bravo x700 msi nx6800 td-128e (single mode) msi nx6800 td-128e (sli mode) memory: 2x 512mb mushkin pc3200 l2 v2 hard drive: 74gb wd raptor 10k rpm sata hdd cdrom: aopen 52x combo powersupply: seasonic super tornado 400w software setup windowsxp build 2600 nforce catalyst 4.12 detonator 66.93 benchmarks 3dmark2001se 3dmark05 codecreatures aquamark gun metal 2 x2 the threat ut2003 doom3 aa test, af and aa+af test 3dmark2001se ut2003

the agp and pci-e systems use a different motherboard but results are shown for reference.