- Jan 16, 2003
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Originally posted by: ss284
There is a slight difference, seeing as ati is going from pci-e to agp, meaning the card is natively pci-e, unlike nvidia which is the exact opposite, a natively agp card with an agp to pci-e bridge chip. Meaning the performance impact from the bridge chip (no matter how small) will be experienced by the pci-e versions of nvidia's cards and the agp versions of ati's cards.
-Steve
And why is this significant?
From what I got from the story was that ATi was going to bridge their AGP cards to PCIE now, then in the future, when PCIE is more avail, they will make native PCIE chips and bridge to AGP then.
Originally posted by: jasonja
Because PCI-E is faster so bridging it to a slower AGP bus should NOT hurt performance since the bus is the limiting factor. nVidia's approach makes the card/bridge the bottleneck since it's on a faster bus.
Originally posted by: Lonyo
Seems like thay are going to be bridging their R420 from AGP to PCI-E NOW, then later, they will bridge the R423 from PCI-E to AGP?
Ie: temp solution until they make their native PCI-E core R423 cards?
Originally posted by: Lonyo
Seems like thay are going to be bridging their R420 from AGP to PCI-E NOW, then later, they will bridge the R423 from PCI-E to AGP?
Ie: temp solution until they make their native PCI-E core R423 cards?
Originally posted by: jasonja
Originally posted by: Lonyo
Seems like thay are going to be bridging their R420 from AGP to PCI-E NOW, then later, they will bridge the R423 from PCI-E to AGP?
Ie: temp solution until they make their native PCI-E core R423 cards?
No, you're wrong. ATI already has native PCI-E parts. Soon all their parts will only be PCI-E internally. When that happens they will still support AGP systems by adding a bridge that makes PCI-E chips work on the AGP bus. They have no reason to slap PCI-E bridges on their AGP parts since they already have native PCI-E equivalents to sell. This is not the case for nVidia right now. That's the difference, if you don't still understand the difference, then perhaps you should avoid posting.
As for the jackass ringing the retard bell. I'm well aware that AGP isn't a limiting factor, but in my example there's clearly a theoretical difference and bottleneck.
Originally posted by: darkswordsman17
From what I got from the story was that ATi was going to bridge their AGP cards to PCIE now, then in the future, when PCIE is more avail, they will make native PCIE chips and bridge to AGP then.
I don't think this is correct, because they are making separate AGP and PCI-E versions of their cards. It sounds like they are going to implement a bridge on just the PCI-E ones until PCI-E becomes more widespread.
Then again, no one will know for sure until they get actual cards in their hands.
The thing I'm wondering is will the people who buy cards with PCI-E native but with the bridge be able to disable the bridge so it runs its native PCI-E. Also, with cards that are AGP native but have a PCI-E bridge be able to run in both?
Originally posted by: LTC8K6
I read the story this way: ATI is making two seperate cards now. A native AGP and a native PCI-E.
Later on, when PCI-E has taken over and AGP is relegated to second fiddle, they will bridge the PCI-E cards to AGP for those that still need AGP cards.
Makes perfect sense and is nothing like what NV s doing as far as I am concerned.
JEN HSUN, NVIDIA'S CEO, SAID
Because PCI-E is faster so bridging it to a slower AGP bus should NOT hurt performance since the bus is the limiting factor. nVidia's approach makes the card/bridge the bottleneck since it's on a faster bus.
Originally posted by: jasonja
As for the jackass ringing the retard bell. I'm well aware that AGP isn't a limiting factor, but in my example there's clearly a theoreticaldifference and bottleneck.