Intel or Nvidia? nForce 680i Challenges Intel P965 and 975X

EVGA nForce 680i SLI

EVGA's nForce 680i SLI is a real enthusiast product; it comes with a powerful six-phase voltage regulator, a heat-pipe cooler for northbridge and southbridge, a built-in Port 80 debug solution for troubleshooting, on-board power-on and reset buttons, and as many as six fan headers.

It utilizes all of the chipset features, such the DualNet Gigabit ports, six SATA/300 ports (two of them bent by 90°), three x16 PCI Express slots for graphics and a possible 3rd graphics card (which can be used for additional display connectivity or a physics acceleration card), two x1 PCIe ports and two classic 32-bit PCI slots.

The King Of Overclocking: FSB1850!

Be sure to reduce the processor multiplier before overclocking your system speed that much! At the default x11 multiplier of the Core 2 Extreme 2.93 GHz, the processor would have to run at over 5 GHz - which it cannot do.

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The overclocking options and margins are simply amazing. Whether you use Nvidia's nTune utility - which automatically searches for close-to-ideal overclocking settings - or you prefer to play around with the massive number of settings in the BIOS yourself, you have the powerful tools you need to squeeze a lot of extra performance out of your 680i board.

nForce Versions Compared

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Header Cell - Column 0 NVIDIA nForce 680i SLI NVIDIA nForce 650i SLI NVIDIA nForce 650i Ultra
Segment Enthusiast SLI Performance SLI Performance
Socket Intel Socket 775 Intel Socket 775 Intel Socket 775
CPU Core 2 Extreme (dual and quad core)Core 2 QuadCore 2 DuoCeleron DPentium 4Pentium D 9XXPentium D 8XX Core 2 Extreme (dual and quad core)Core 2 QuadCore 2 DuoCeleron DPentium 4Pentium D 9XXPentium D 8XX Core 2 Extreme (dual and quad core)Core 2 QuadCore 2 DuoCeleron DPentium 4Pentium D 9XXPentium D 8XX
FSB (MHz) 1333* MHz 1066 MHz 1066 MHz
Extreme FSB Overclocking Best Good Good
NVIDIA SLI Technology Yes2 x16 Yes2 x8 No
Third PCIe Graphics Expansion Slot Yes No No
SLI-Ready Memory (MHz) with EPP 1200 MHz - -
JEDEC DDR2 Memory (MHz) 800 MHz 800 MHz 800 MHz
NVIDIA LinkBoost technology Yes No No
PCI Express
# Lanes 46 lanes 18 lanes 18 lanes
# Links 9 links 4 links 3 links
Configuration 16, 16, 8, 1, 1, 1, 1, 1, 1 8, 8, 1, 1or16, 1, 1 16, 1, 1
SATA/PATA drives 2-Jun 4-Apr 4-Apr
SATA speed 3Gb/s 3Gb/s 3Gb/s
RAID 0,1,0+1,5 0,1,0+1,5 0,1,0+1,5
NVIDIA MediaShield Storage Technology Yes Yes Yes
Native Gigabit Ethernet Connections 2 1 1
NVIDIA FirstPacket technology Yes Yes Yes
NVIDIA DualNet technology Yes No No
Teaming Yes No No
TCP/IP Acceleration Yes No No
NVIDIA nTune Utility Yes Yes Yes
USB ports 10 8 8
PCI Slots 5 5 5
Audio HDA (Azalia) HDA (Azalia) HDA (Azalia)
Patrick Schmid
Editor-in-Chief (2005-2006)

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.