pci 2.0 specs ?
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Original Message
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Name: bruce_k2
Date: August 13, 2007 at 12:36:31 Pacific
Subject: pci 2.0 specs ?OS: Windows Xp sp 2CPU/Ram: Athlon Xp 2500 1.5 gig ddModel/Manufacturer: ECS KT600-A |
Comment: I've been reading up on the pci 2.0 and can't figure out what i really want to know. The X38 chipset has pci 2.0 When in cross fire mode. Both cards are 16 times bandwith. Will a single pci 2.0 slot function at 32 times bandwith?
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Response Number 1
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Name: jam
Date: August 13, 2007 at 13:47:23 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)The standard PCI slots have nothing to do with the PCI-Express x16 slots that are used for Crossfire. What are you trying to do?
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Response Number 2
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Name: bruce_k2
Date: August 13, 2007 at 14:22:52 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)Will a single pci express 2.0 slot function at 32 times bandwith? Is this a feature in future motherboards.
Or will pci express 2.0 on the the x38 chipset be made just to allow full 16 times bandwith for two high end video cards in cross fire?
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Response Number 3
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Name: jam
Date: August 13, 2007 at 14:52:55 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)OK, you're asking about PCI-Express 2.0, not PCI 2.0...there's a HUGE difference! http://www.pcisig.com/specification... http://en.wikipedia.org/wiki/PCI_Ex... And you need to clarify what you mean by bandwidth or what you think bandwidth is. Regardless, the bandwidth is doubled, not 32 times. The current max bandwidth of PCI-e 1.0 x16 slot is 2.5 Gbit/sec. PCI-e 2.0 will double that to 5.0 Gbit/sec. And remember, all this is theoretical. BTW, most people will tell you that Crossfire & SLi setups are a tremendous waste of money.
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Response Number 4
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Name: jackbomb
Date: August 13, 2007 at 16:22:28 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)Jam, I always thought PCIe 16x transferred at 4.0 GByte/sec (or 8.0 GByte/sec in bidirectional mode)? Edit: The article you linked seems to agree with me. :P
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Response Number 5
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Name: bruce_k2
Date: August 13, 2007 at 19:10:54 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)Hate to dish out money on a P35 motherboard with pci express 1.0 with pci express 2.0 on it's way out.
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Response Number 6
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Name: Cobra_R
Date: August 13, 2007 at 21:36:21 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)Why you still got to consider other factors like DDR3 which the first series of any type of DDR is not going to gain hardly any performance over the last generation. Second is the cost of DDR3 which is a lot more right now because DDR3 isn't mass produced yet. Then you got SATA III coming out which will be another new standard. I wouldn't touch any motherboard until all the standards are in place and DDR3 become a lot cheaper and that isn't going to happen for another year, but I can wait. Heck i'm still using a s939 system and i'm doing just fine.
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Response Number 7
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Name: jam
Date: August 16, 2007 at 20:17:32 Pacific
Subject: pci 2.0 specs ? |
Reply: (edit)AGP 8x was only slightly faster than AGP 4x. PCI-e x16 is no faster than AGP 8x.
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