Intel DQ87PG Product Specification - Page 19

PCI Express Graphics

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Product Description 1.3.1.8 PCI Express Graphics 4th generation Intel Core processors support PCI Express 3.0, 2.x, and 1.x: • PCI Express 3.0 with a raw bit rate of 8.0 GT/s results in an effective bandwidth of 1 GB/s each direction per lane. The maximum theoretical bandwidth of the x16 interface is 16 GB/s in each direction, simultaneously, for a total bandwidth of 32 GB/s. • PCI Express 2.x with a raw bit rate of 5.0 GT/s results in an effective bandwidth of 500 MB/s each direction per lane. The maximum theoretical bandwidth of the x16 interface is 8 GB/s in each direction, simultaneously, for a total bandwidth of 16 GB/s. • PCI Express 1.x with a raw bit rate of 2.5 GT/s results in an effective bandwidth of 250 MB/s each direction per lane. The maximum theoretical bandwidth of the x16 interface is 4 GB/s in each direction, simultaneously, for a total bandwidth of 8 GB/s. For information about PCI Express technology Refer to http://www.pcisig.com 19

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Product Description
19
1.3.1.8
PCI Express Graphics
4
th
generation Intel Core processors support PCI Express 3.0, 2.x, and 1.x:
•
PCI Express 3.0 with a raw bit rate of 8.0 GT/s results in an effective bandwidth of
1 GB/s each direction per lane.
The maximum theoretical bandwidth of the x16
interface is 16 GB/s in each direction, simultaneously, for a total bandwidth of
32 GB/s.
•
PCI Express 2.x with a raw bit rate of 5.0 GT/s results in an effective bandwidth of
500 MB/s each direction per lane.
The maximum theoretical bandwidth of the x16
interface is 8 GB/s in each direction, simultaneously, for a total bandwidth of
16 GB/s.
•
PCI Express 1.x with a raw bit rate of 2.5 GT/s results in an effective bandwidth of
250 MB/s each direction per lane.
The maximum theoretical bandwidth of the x16
interface is 4 GB/s in each direction, simultaneously, for a total bandwidth of
8 GB/s.
For information about
Refer to
PCI Express technology