Solved PCI-E x1 vs. PCI-E x16?

March 1, 2006 at 23:22:49
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I currently have an AGP video card, but I"m buying a new motherboard and I'm thinking PCI Express compatibility might be a good idea to leave room for future upgrades. But what is the difference between a PCI-E x1 slot and a PCI-E x16 slot???

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✔ Best Answer
March 3, 2006 at 14:34:20

bandwidth Gets Bigger
Transfer rate(mbps) ----->faster
PCI express x16---------------->4000
AGP 8X -------->2128
PCI express x8 ------->2000
AGP 4X ---->1064
PCI express x2 -->500
AGP 1X ->266
PCI express x1 ->250
PCI ->133

A PCI express slot is designated by the number of lanes it supports:1x slot supports a single lane, an X2 slot supports 2 lanes, and so on. an x16 slot can handle 4 GBps of bandwidth of an AGP 8X. but dont throw your PCI card out yet. the lastest comp and motherboards come equipped with a single x1 slot, a single x16 slot for the graphic card, and some original PCI slots.

unless you are on a tight budget or you just bought a high-end AGP video card for your current system, a PC equipped with PCI express is a sound buy. well, if you are not in hurry, however, wait for a while. PCI express cards are scarce and untested, as is software that can take advantage of the newly available bandwidth

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#1
March 2, 2006 at 04:47:44

PCI-E x16 is designed specifically for graphics cards, where as PCI-E x1 is... I guess just for other general devices... but they annoy me because it isn't very common to find a PCI-E 1x device and it seems to waste space where a normal usable PCI slot could have been.

Mattwizz3 : )

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#2
March 2, 2006 at 08:10:26

So you're saying a graphics card wouldn't work at all with a PCI-E x1 slot, right?

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#3
March 2, 2006 at 11:14:42

PCIe 1x connector is so much smaller then the PCI connector and only supports a bandwidth up to 5Gbps, while the 16x PCIe slot supports 80Gbps.

Now there are PCI-e 1x cards, but they are not mainstream since they never caught on (go figure), but as time goes and things like network, sound and other PCI devices migrate to PCi-e they be used a lot more, the kicker is, with board manufacturers intergrating as much features as they possibly can on motherboards, it may be a rehash of the CNR and AMR slots.

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#4
March 3, 2006 at 14:34:20
✔ Best Answer

bandwidth Gets Bigger
Transfer rate(mbps) ----->faster
PCI express x16---------------->4000
AGP 8X -------->2128
PCI express x8 ------->2000
AGP 4X ---->1064
PCI express x2 -->500
AGP 1X ->266
PCI express x1 ->250
PCI ->133

A PCI express slot is designated by the number of lanes it supports:1x slot supports a single lane, an X2 slot supports 2 lanes, and so on. an x16 slot can handle 4 GBps of bandwidth of an AGP 8X. but dont throw your PCI card out yet. the lastest comp and motherboards come equipped with a single x1 slot, a single x16 slot for the graphic card, and some original PCI slots.

unless you are on a tight budget or you just bought a high-end AGP video card for your current system, a PC equipped with PCI express is a sound buy. well, if you are not in hurry, however, wait for a while. PCI express cards are scarce and untested, as is software that can take advantage of the newly available bandwidth

3.2GHZ Intel Pentium EE 840
1GB Dual-channel DDR2-533 RAM
Asus P5ND2-SLI Deluxe mobo
2 EVGA E-Geforce 7800GTX
Creative Soundblaster X-Fi
550W PSU


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