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A few questions about PCIe

First, welcome to the Anandtech Forums holyhandgrenade! 😀 (Monty Python and the Holy Grail, unforgettable movie)

Second, the current graphics interface (AGP) isn't even fully utilized in terms of bandwidth. In fact, in most situations you won't be using any more then around 1GB/s of bandwidth. So I really doubt that PCIe will help graphics cards perform faster. And PCIe will require a different slot then AGP.

And also this would belong in General Hardware. Just to let you know. 😉

-Por
 
Yes, PCIe will require a new MB and CPU (no current P4 or Athlon XP supports PCIe) assuming that you don't have an A64.

BTW, Congrats on upgrading your way to AT!
 
Originally posted by: PorBleemo
First, welcome to the Anandtech Forums holyhandgrenade! 😀

Second, the current graphics interface (AGP) isn't even fully utilized in terms of bandwidth. In fact, in most situations you won't be using any more then around 1GB/s of bandwidth. So I really doubt that PCIe will help graphics cards perform faster. And PCIe will require a different slot then AGP.

And also this would belong in General Hardware. Just to let you know. 😉

-Por
Click to expand...


Not entirely true, PCI-E provides an uninterupted flow or data going up, AND down. the AGP bus' bandwidth may not totally be utilized, but that is just one of many factors to consider. And how would this belong in general hardware? PCI-E (x16) what he is talking about, is a graphics card interface.

EDIT: Wow! the athlon64 has pci-e support? I had no idea, I was considering buying an athlon 64 3000+
 
i don't think the boards are out yet.

but ya, pci express is more than just a bumb in bus speed from agpx8, but how much it will change things is hard to say.
 
linkage, i am VERY interested about this, i am planning on building a system with VIA's agp/pci-e mobos and i'd love to see where you read this, knowledge is power! 😛
 
Welcome to the forums, HHG. Both ATi and nVidia claim that PCIe will be inherently faster than AGP simply because the former offers bidirectional communication and greater bandwidth, though we may not see too great a difference initially because game developers have coded with AGP's limits in mind (so current games probably won't fully exploit PCIe's extra features and bandwidth). Thus R423, if it's clocked the same as R420, may not be much faster, if at all. But I suspect R423, as it's being released after R420, will include higher clock speeds as well, meaning greater performance regardless of AGP/PCIe.

KK, there's nothing inherent in current CPUs that prevent them from supporting PCIe, though I suppose you'll need a new CPU if the new MBs that have PCIe slots don't include a compatible CPU socket.
 
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