Overclocking Results:

stock overclocked gpu (core) speed: 550 mhz 618 mhz memory speed: 1700 mhz 1819 mhz if you're new to Overclocking and not sure what to do, check out these two excellent Guides for some pointers: Overclocking the CPU and Memory Overclocking the Videocard

The GeForce 7800GTX core on the MSI NX7800GTX-VT2D512E is already clocked 120 MHz faster than 'stock', so head room is going to be tight. The core clock speed was increased in 2-3 MHz intervals until it passed the 600 MHz mark.

Good so far.

Continuing past 618 MHz proved to be totally futile. The MSI NX7800GTX-VT2D512E would start to throttle back, which was surprising since core temperatures apparently remained below 60 degrees Celsius.

Next up was the 512MB of GDDR3 memory which is clocked at 1700 MHz! Increasing that speed in 10 MHz intervals allowed us to move up a 100MHz pretty uneventfully. The GDDR3 craped out right at 1819 MHz though, with visual artifacts appearing if pushed a single megahertz further.

Considering how the previous GeForce 7800GTX 266MB videocards overclocked, it's refreshing to see the MSI NX7800GTX-VT2D512E do so well! End score: 618MHz GPU, 1819MHz memory.

PCStats Test System Specs:

processor: amd athlon64 4000+ clock speed: 12 x 200 mhz = 2.4 ghz motherboards: asus a8n-sli premium (nf4-sli) videocard: ati radeon x850 xt pe msi rx850xt-td256e msi rx800xt-vtd256e ati radeon x800 xl powercolor x700 pro msi nx7800gtx-vt2d256e (single mode) msi nx7800gtx-vt2d256e (sli mode) asus en7800gt 2dhtv/256m/osp/a (single mode) asus en7800gt 2dhtv/256m/osp/a (sli mode) msi nx6800gt-t2d256e msi nx6800-td128e (single) msi nx6800-td128e (sli mode) msi nx6600gt-td128e (single mode) msi nx6600gt-td128e (sli mode) msi nx7800gtx-vt2d512e memory: 2x 512mb ocz pc3500gx gold memory hard drive: 74gb wd raptor 10k rpm sata hdd cdrom: aopen 52x combo powersupply: pc power & cooling turbocool 510 sli heatsink: stock athlon64 4000+ hsf software setup windowsxp build 2600 nforce4 6.53 catalyst 5.10 detonator 78.01 benchmarks 3dmark03 3dmark05 aquamark3 halo farcry splinter cell: chaos theory doom 3 fear quake 4 aa+af benchmarks farcry fear doom 3