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Whats up with PCIE 2.1?

post #1 of 4
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What exactly is PCIE 2.1? It seems to be absolutely no different from PCIE 2.0
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El Computron
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post #2 of 4
There's a difference in power delivered over the slot, I believe.
post #3 of 4
Quote:
PCI Express 2.0
PCI-SIG announced the availability of the PCI Express Base 2.0 specification on 15 January 2007.[10] The PCIe 2.0 standard doubles the per-lane throughput from the PCIe 1.0 standard's 250 MB/s to 500 MB/s. This means a 32-lane PCI connector (x32) can support throughput up to 16 GB/s aggregate. The PCIe 2.0 standard uses a base clock speed of 5 GHz, while the first version operates at 2.5 GHz.
PCIe 2.0 motherboard slots are fully backward compatible with PCIe v1.x cards. PCIe 2.0 cards are also generally backward compatible with PCIe 1.x motherboards, using the available bandwidth of PCI Express 1.1. Overall, graphic cards or motherboards designed for v 2.0 will be able to work with the other being v 1.1 or v 1.0.
The PCI-SIG also said that PCIe 2.0 features improvements to the point-to-point data transfer protocol and its software architecture.[11]
Intel 's first PCIe 2.0 capable chipset was the X38 and boards began to ship from various vendors (Abit, Asus, Gigabyte) as of October 21, 2007.[12] AMD started supporting PCIe 2.0 with its AMD 700 chipset series and nVidia started with the MCP72.[13]All of Intel's prior chipsets, including the Intel P35 chipset, supported PCIe 1.1 or 1.0a.[14]
[edit]PCI Express 2.1
PCI Express 2.1 supports a large proportion of the management, support, and troubleshooting systems planned to be fully implemented in PCI Express 3.0. However, the speed is the same as PCI Express 2.0. Most motherboards sold currently come with PCI Express 2.1 connectors.
Straight from Wiki.
    
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post #4 of 4
I don't think there's any difference at all except maybe some random features / functions that don't involve you since the bandwidth is the same just think of it the same as 2.0.
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