2x vs. 4x agp? what is the difference

[dapatient]

can anyone explain this to me...
my mobo supports up to 2x agp...and my new video card goes up to 4x. what difference would i notice if i got a mobo that supports 4x? is it worth the upgrade? thanks guys in advanced

 

[Zenmervolt]

AGP 4x offers double the theoretical bandwidth of AGP 2x. Last I checked, there was no real world performance increase when going from AGP 2x to AGP 4x, and there probably won't be one for a while. Anyway, I don't believe there is any good reason to upgrade your mobo for AGP 4x support.

Zenmervolt

 

[Rand]

AGP 4X provides twice the bandwidth of AGP2X. Having said that the real world performance difference between the two is usually 0-1% at most.

 

[EvilDonnyboy]

And stability with AGP4X is often horrible. Many users leave AGP to 2X to keep stability high, even tho their entire system is AGP4X "capable".