PCI Express 2.0 has twice the bandwith (500 MB per second) of PCI Express 1.1 (250 MB per second). The x16 means that the connector has 16 data lanes, each capable of bi-directional tranfer (full duplex), essentially giving you 32 lanes of single direction transfer. Both standards can be x16. There are also x8, x4, and x1 type connectors. Currently PCI Express 2.0 is only available on high-end PC motherboards.
2007-11-26 18:25:11
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answer #1
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answered by Anonymous
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Of course PCI Express 2.0 is better but graphics card haven't even used up all of the bandwidth available in PCI-e x16 so its fine to get motherboard with pci-e x16 slot, there is still life in it. PCI-e is backwards compatible so no worries there either.
2007-11-27 10:19:27
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answer #2
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answered by Friendly 3
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PCI-E2 is twice as fast as X16. X16 graphics cards are compatible with 2.0 slots and vice versa. You wont see twice the performance with a 2.0 card in a 2.0 slot thou, but it will perform better.
2007-11-27 03:29:08
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answer #3
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answered by s j 7
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PCIe 2.0 is best for high end multi-card setups (SLI or X-Fire). Single graphics card won't be able to fully utilize the wide bandwidth of PCIe 2.0.
2007-11-27 03:25:31
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answer #4
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answered by Karz 7
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neither is better....PCI Express 2.0 is to PCI Express x16 like what your bios is to your pc.
2007-11-27 02:20:40
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answer #5
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answered by Hugh_G_Rection 4
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