Difference nila

[raymacsor]

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Unsa difference ani nila?


-PCI Express x16

-PCI Express x1

[butitoy]

x1 and x16

google

[vladmire]

same inquiry nako before

-PCI Express x16 - video card nimo

-PCI Express x1 - add in card, like sound card or ug uban pa..

[spookey]

same inquiry nako before

-PCI Express x16 - video card nimo

-PCI Express x1 - add in card, like sound card or ug uban pa..

and bandwidth capacity. kung sa dalan pa 16 lanes (meaning 16 ka sakyanan pwede magtapad) ang kadak-on while ang isa kay 1 lane ra (meaning 1 ka sakyanan ra dili pwede naay magtapad or overtake). i hope na gets nimo ang difference in layman's term. hehehe...

[butitoy]

PCI Express, officially abbreviated as PCI-E or PCIe, is a computer expansion card interface format. It was designed to replace PCI, PCI-X and AGP (graphics card interface). PCIe is based around serial links called lanes. The PCIe 1.1 specification supports x1 (pronounced "by one"), x2, x4, x8, x16, and x32 lanes. In each lane, the most common version PCIe 1.1 carries 250 MB/s in each direction. Every lane of the PCIe is a full duplex link; capable of simultaneous transmit and receive. The PCIe 1.1 bus runs at 2.5 GHz. An explicit clock is not used; instead the data stream is encoded using the 8b/10b scheme, which ensures that there are sufficient transitions within a single 10 bit character to properly and reliably recover the clock. The astute reader will notice that there are 3 times more combinations than characters used. Some of these additional characters are discarded due to an insufficient number of edges within the 10 bit packet to extract the clock. Others are used to encode error commands. Some may be used to provide "DC balancing" so that the wire doesn't acquire an electrical charge. The remainder are simply not used. Therefore, each lane transmits 250 MB/s. The most number of lanes supported is x32, so 250MB/s x 32 x 2 (bi-directionality) is 16GB/s for a theoretical maximum transfer rate.

PCIe slots come in a variety of sizes referred to by the maximum lane count they support. A larger card will not fit in a smaller slot but a smaller card can be used in a larger slot. The number of lanes actually connected may be smaller than the number supported by the slot size. While a 16 lane card cannot be used in an 8 lane slot it can be used in a 16 lane slot with only 8 lanes connected. The number of lanes are "negotiated" during power-up or explicitly during operation.

Putting this into perspective, a single lane has nearly twice the data rate of normal PCI, a four lane slot has a comparable data rate to the fastest version of PCI-X 1.0, and an eight lane slot has a data rate comparable to the fastest version of AGP.

http://en.wikipedia.org/wiki/PCI_Express

x1 lane = 250 MB/s bi directional
x16 lanes = 250 x16 b bi directional

[raymacsor]

ah ok now i know ...thanks mga bro..