Why does Intel continue to use variations of GTL for FSBs?

[OldSpooky]

I'm pretty sure that the Pentium 4 FSB uses a variation of AGTL+ technology for it's FSB. I wonder why Intel hasn't switched to something of a serial nature - from what I've read parallel, shared busses are harder to run at higher speeds.

And Intel wants to raise the P4 FSB to 800 MHz! (200x4)... I wonder how they are going to accomplish this!

 

[CallTheFBI]

Originally posted by: OldSpooky
I'm pretty sure that the Pentium 4 FSB uses a variation of AGTL+ technology for it's FSB. I wonder why Intel hasn't switched to something of a serial nature - from what I've read parallel, shared busses are harder to run at higher speeds.

And Intel wants to raise the P4 FSB to 800 MHz! (200x4)... I wonder how they are going to accomplish this!

Oh I am sure they will find a way. They have always found a way to increase the speeds in the past.

 

[Buddha Bart]

In order to switch to a more serial bus they would have to put something between the bus and the cpu to split the signal back up so that everything goes to the right pins. Or they could intergrate it into the chip, and just have a lower pin-count. Perhaps the latency this would add is unacceptable to them?

bart