Originally posted by: wicktron
Originally posted by: saqdeez
what does the gigabyte ethernet do better than what is currently out there? I have the original nforce 2 mobo
It's
Gigabit ethernet. And the reason why the nForce3-250GB implementation of the GB ethernet is great is because the physical layer resides off of the PCI bus, thus saving CPU process cycles.
Sustained full-duplex gigabit transfer requires about double the bandwidth of an entire 32-bit 33MHz PCI bus, so getting it out onto the 1600MB/sec Hypertransport bus instead of the 133MB/sec PCI bus does two things:
1) it leaves the PCI bus more available for stuff that
has to use the PCI bus, like perhaps a TV-tuner card, a professional audio-capture card, SCSI cards, etc.
2) it lets gigabit Ethernet really cut loose (initial Chariot benchmarks show nF3 250Gb's FD throughput peaking at over 1700 megabits per second, faster than a 64-bit 100MHz PCI-X server NIC on a dual-Xeon server board)
For a typical home user who's picked up a 5-port all-gigabit switch and a PCI gigEthernet NIC for their little home fileserver, and has nF3 250Gb in their primary system, benefit #2 may not really make much difference. The PCI gigaNIC in their home server will be the bottleneck no matter what. But benefit #1 still exists and you should still see about three times the performance of 100Mbit (been there, done that).
If your home fileserver happens to have non-PCI-bound gigaLAN on it (another nF3 250Gb, or nForce2 Ultra400Gb, or one of the upcoming native-gigabit SiS or VIA chipsets, or Intel CSA Gigabit), then you might find that benefit #2 is very tangible. Or if you're on a business network and your server has a PCI-X gigabit NIC (or better yet, two of them in link-aggregated mode with a compatible gigabit switch!), then again you ought to see benefits.