What is PCI-E 2.0 ??

Question

i mean, is it a slot ?

is it newer than PCI-E ?

what is this for ?

i was born nov.12.1989

Answer 1

PCIe 2.0 is the latest and faster technology that doubles the bus bandwidth for graphics cards and is backward compatible with the PCIe 1.1 and 1.0 standard.

PCI-SIG announced the availability of the PCI Express Base 2.0 specification on 15 January 2007. PCIe 2.0 doubles the bus standard's bandwidth from 0.25 GByte/s to 0.5 GByte/s, meaning a x32 connector can transfer data at up to 16 GByte/s in each direction.

PCIe 2.0 is backward compatible with PCIe v1.x. Graphic cards and motherboards designed for v2.0 will be able to work with v1.1 and v1.0. In some cases it is possible that a PCI-E 2.0 card will not work correctly on a PCI-E 1.0a slot. This is only limited to certain video cards.

added:

Chickster below is wrong. it has nothing to do with the southbridge. the southbridge is only responsible for the data transfer with the PCIe x1 slots and all peripherals (keyboard, mouse, sound chip, PCI, USB, Firewire, LAN, hard drives, CD/DVD, floppy, memory card reader, Express cards in notebooks). the data transfer with the large PCIe x16 slots is done only via the much faster northbridge, that also serves the memory.

Intel northbridges supporting the PCIe 2.0 standard are the P43, P45, X38 and X48.

Nvidia northbridges supporting PCIe 2.0: nForce 750i, nForce 780i, nForce 790i

Answer 2

Peripheral Component Interconnect-Express 2.0

It's a technology. It was brought out by Intel in 2004. (PCI-Express itself. PCI-Express 2.0 was brought out in 2007) Graphics interface technology before this was the AGP, or Accelerated Graphics Port. Before that it was the PCI technology, and before that the ISA technology.

When PCI-Express first came out, in it's development stage it was called

HSI,(High Speed Interconnect) Then the name changed to 3GIO,

(3rd Generation I/O. Or, also stated as 3rd Generation Input/Output), with the last name being decided on is PCI-Express.

This was PCI-Express 1.0 version. Then the PCI-Express 1.1 version came out, and now it's the PCI-Express 2.0 version.

The motherboard has to have a Southbridge chip, that will support PCI-Express 2.0. The PCI-Express x16 slot/s, will then use the PCI-Express 2.0 technology. (If you see Slot/s typed on a page, this means there could be 1 slot, or more than 1 slot. Slot/s.)

Let's break this down, hopefully into something more understandable.

1.There are a number of connections in an expansion slot. (Expansion slots, refer to the slots on the motherboard, where you can plug expansion cards into. Expansion slots, and expansion slot examples are: PCI, AGP, PCI-Express x1, and PCI-Express x16.) {I won't get into the ancient technology of the ISA architecture}

Using the PCI-Express slots for an example, there are 36 pins on the PCI-Express x1 card, and 36 connectors in the bottom of the PCI-Express x1 slot.

For the PCI-Express x16 slot, there are 164 pins on the PCI-Express x16 card, and 164 connectors,(Connections), in the bottom of the PCI-Express x16 slot.

The PCI-Express x1, has 1 LANE for data transmission. Data traffic flows from the card to the Southbridge chip, and back to the card. Just like a lane of traffic for cars.

The PCI-Express x16, has 16 LANES for data traffic. In this case, it's graphics data traffic. PCI-Express x16 is always used for graphics traffic. Nothing else.

PCI-Express x1 can be used for many things. Some examples are, Ethernet adapters,(One's that use the PCI-E x1), and TV Tuner cards.

2.Using the PCI-Express x16 graphics cards for an example, since this is the most common PCI-Express referred to,

A.The PCI-Express 1.1 version, transfers graphics data back and forth at 2.5GT/s,(GT/s=Giga Transfers per Second)

B.The PCI-Express 2.0 version, transfers graphics data at 5.0GT/s.

http://en.wikipedia.org/wiki/PCI-Express

1.ISA:http://en.wikipedia.org/wiki/Industry_St...

2.PCI:http://en.wikipedia.org/wiki/Peripheral_...

3.AGP:http://en.wikipedia.org/wiki/AGP

4.PCI-Express:http://en.wikipedia.org/wiki/PCI-Express

Answer 3

It's newer than PCI-E, however the slots are compatible with each other.