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Onboard NICs

Onboard NICs are fine for 99% of the people out there.
If this is for a business, things get a bit murky, so you have to specify what you are hooking it up to.
 
Got to test it out. I use onboard and have had no issues, sans my P5K with an Attansic L1 gigabit nic, disabled and got a PCI-E x1 Intel 1000/PT If I remember the model correctly 🙂
 
The realtek on my H67 motherboard is OK. When transferring to/from my G41 machine, i couldn't get more than 350mbps. I added an intel NIC to the G41 machine and I can get 600-800mbps and that is probably as fast as my hard drives can go anyway.
 
Why do you say that?

Most onboard NIC's I've seen are Realtek.

Some Intel boards (can't say all since I haven't actually looked at all) do have i217, 82579, i210 or 82574's onboard. Asus' high end lines do as well (at least intel ones).
 
Depends on what you are doing. If you are just sucking down slow-arsed internet, OB stuff is fine. For anything else, get Intel.

I use only Intel AIB NIC's.

Zero problems, ever. Excellent drivers and hardware. 115 MB/s average (10's of 1000's of small files need not apply, as with any NIC).

My Thinkpads have non Intel ethernet, and they all waddle around at 70 MB/s, and are sometimes quite flaky in operation. Same with any other non-Intel NIC I've ever had the displeasure of using.
 
Intel is the gold standard for support / drivers and compatibility even if it's an onboard Intel chipset. If you don't have an onboard Intel NIC then consider getting a PCI-E one. Realtek makes ok NIC's but they just don't compare to intel's. If all you are doing is surfing the net it doesn't matter much what you get but otherwise I think Intel NIC's are just better.
 
I would put it this way:

All those fortune 500 companies with 20,000+ pc's, high odds around 19,996 of them are using on board NICs. I what I would consider most cases, the on boards are fine for just about everything.
 
Having previously worked at an ISP only mission critical servers used dedicated NICs.

At one point I had a dismally slow old computer working as my router and the on-board NIC contributed noticeably to CPU load. I used hardware NICs that time.
 
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