Is onboard gigabit lan alot faster than a gigabit PCI card?

jcc39

Weaksauce
Joined
Apr 10, 2003
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I will be building a multimedia server with a 1TB Raid 5 array. It will be streaming content to two to three computers at the most at any given time. I am in the middle of gathering hardware, and now i must decide if I should go buy a mobo with onboard gigabit lan, or is it ok to use an older mobo and just install a PCI gigabit card. I realize that the speed will probably be slower because of the PCI bottleneck, but by how much? Anyone have any experiences or numbers to share? Much thanks for any help.
 
Well i'm currently looking at is7-e2g, p4p800, or ab60r, I believe they are all intel CSA. The older mobo is an a7v266 and I'll just slap in an intel pro pci 100/1000 adapter
 
It depends on how the chipset and NIC controler are set up.. Here is a really good read on the subject.

Looks like if it's CSA then it will be better in most cases.. Full duplex throughput being the biggest jump. Processor utilization was another 5% (MAX)
 
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