What's the difference between dedicated / Pci Lan card & on board / built in one

[3hunna]

I heared it offloads the network processing off the Cpu but it only helped in the days of p4s & it don't matter now days with modern Cpus cause of Hyperthreading , turbo boost & four cores . Will a Pci lan card give me a performance boost or anything ?

 

[Someone Somewhere]

Nope. In fact, a PCI card would probably be slower because the PCI bus is pretty slow.

Most onboard LAN cards are the same as PCIe ones, they're just on the motherboard directly instead of in a PCIe slot.

 

[3hunna]

Nope. In fact, a PCI card would probably be slower because the PCI bus is pretty slow.

Most onboard LAN cards are the same as PCIe ones, they're just on the motherboard directly instead of in a PCIe slot.

So the reason why they make Pci Lan cards is because if the on board one dies you wouldn't need to buy a whole new motherboard ??? & btw does a sound card help ? Idk about you but I heared it has better quality then the on board one & it let's you hear the foot steps , crouching , reloading sounds of your enemies in games but for that you would also need a good pair of headset or speakers that are 5.1 / 7.1 surround sound but the on board one that came with the 2nd & 3rd gen I series processors is quite good am I right ? & Can you tell me why my on board intergrated sound card's volume was low when I plugged in my Alienware tactx when everything was set to high in the settings , the on board one didn't had no problem with my speakers though but after I bought a dedicated Creative 7.1 sound card the volume became high in my headset

 

[Someone Somewhere]

Because some people want more than one LAN port.

Sound cards are generally useless, except for very high impedance headphones.

 

[3hunna]

Because some people want more than one LAN port.

Sound cards are generally useless, except for very high impedance headphones.

What are high impedance headphones? & is my Alienware tactx one of them ? from what I know my headset is 7.1 simulator

 

[Someone Somewhere]

40Ω. Fairly high, but not very high.

Integrated soundcards should be OK, but that's one of the times when a headphone amp or dedicated card would help.

 

[3hunna]

40Ω. Fairly high, but not very high.

Integrated soundcards should be OK, but that's one of the times when a headphone amp or dedicated card would help.

Answer three of my last Q's

1. Tell me what is high impedance headphones in simple words?
2. Will a non branded psu damage your other hardware components if you use a gpu with it?
3. Will a pc run cooler without side casing ?

 

[Someone Somewhere]

1) Impedance is essentially how much current is needed to drive the coils in the speakers. High impedance needs a more powerful amp; though it's a little more complicated.

2) Quite possibly. Some can cause serious damage, though most just damage themselves.

3) Not usually. The fans should pull air in the front of the case, through the middle, and out the back. Without the side, the fans just recirculate air and nothing moves in the middle.