NForce3
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Features of the nForce3
When the Athlon 64 was launched, the NVIDIA nForce3 150 and VIA K8T800 were the only two chipsets available. The 150 chipset was widely criticized at launch for using a 600 MHz HyperTransport interface, when VIA had implemented the full AMD specification at 800 MHz, even though overall performance of the 150 was still good.
Later revisions fixed this omission, and using a HyperTransport interface, the nForce3 chipset is able to communicate at up to 8 GB/s with the CPU. This reduces system bottlenecks when using high-bandwidth devices. For example, the Gigabit Ethernet transmits at 100 MB/s; if the Ethernet were not on the chipset, a saturated gigabit ethernet link would use 75% of the bandwidth of the 133 MB/s PCI bus.
The 150 also noticeably lacked features. Subsequent revisions of the chipset corrected these omissions. The chipset is offered in different versions, reflecting socket types and features.
- nForce3-250 - Socket 754, basic value chipset, 800HT, does not include on-chip Gigabit LAN or on-chip Firewall.
- nForce3-250Gb - Socket 754, 800HT, includes gigabit LAN and on-chip Firewall.
- nForce3-250Gb Ultra - Socket 939, 1000HT, gigabit LAN, Firewall, Dual-Channel unbuffered, for Athlon 64/Athlon 64 FX.
- nForce3-250Gb Ultra PRO - Socket 940, 1000HT, gigabit LAN, Firewall, for Opteron.
However, the most notable omission from the nForce 3 chipset is the quality integrated SoundStorm audio found in nForce2 boards, supposedly for cost reasons. The nForce 3 chipset is a single die solution, as opposed to the historical northbridge / southbridge combination, and reportedly there was not enough space left for audio functionality.
The nForce3 also supports the latest SATA technology, as well as RAID 0+1 striping and mirroring. The chipset can accommodate up to four high bandwidth SATA-150 devices.
External links
- [NVIDIA: nForce3]
- [Anandtech: nForce3-250 - Part 1: Taking Athlon 64 to the Next Level]
- [Anandtech: nForce3-250 - Part 2: Taking Athlon 64 to the Next Level]
- [Anandtech: Which Boards Have On-Chip LAN?]
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