PCI EXPRESS 3.0

dmxdex2020 · 12 Oct 2011 at 20:39

I see that some SB motherboards now have 3.0 support. With the latest cards can they give a peformance increase?

Jokester · 12 Oct 2011 at 20:49

You'll also need an Ivy Bridge CPU to go with it and the card itself will need PCI-E 3.0, none of which are out.

panyan · 12 Oct 2011 at 20:58

i did read a review that showed a few FPS gain even with the current stuff, but the major boost will come with the new stuff

siege2 · 12 Oct 2011 at 21:20

Jokester said:
You'll also need an Ivy Bridge CPU to go with it and the card itself will need PCI-E 3.0, none of which are out.

would the new GPUS that are coming out have pci-e 3?

Jokester · 12 Oct 2011 at 21:22

siege2 said:
would the new GPUS that are coming out have pci-e 3?

Probably.

siege2 · 12 Oct 2011 at 21:28

yep they will :-)

http://www.bit-tech.net/news/hardware/2011/08/08/no-new-nvidia-gpu-this-year/1

should have used google at first

gropingmantis · 12 Oct 2011 at 22:17

I've been wondering about PCI-e 3.0 since I saw this http://uk.gigabyte.com/press-center/news-page.aspx?nid=1048 (my motherboard is listed) and this got me thinking. What do they mean by "ready for native PCI-e 3.0". Does this mean you can plug a PCI-e 3.0 card in and it will work (i.e. marketing bull****) or does that mean I will be able to run a PCI-e 3.0 card at PCI-e 3.0 speeds with an Ivy Bridge CPU?

Jokester · 12 Oct 2011 at 22:29

To run at PCI-E 3.0 speeds, you'll need a Ivy Bridge CPU and a PCI-3.0 card, and an honest motherboard manufacturer.

Martini1991 · 12 Oct 2011 at 22:30

panyan said:
i did read a review that showed a few FPS gain even with the current stuff, but the major boost will come with the new stuff

Impossible.

gropingmantis said:
I've been wondering about PCI-e 3.0 since I saw this http://uk.gigabyte.com/press-center/news-page.aspx?nid=1048 (my motherboard is listed) and this got me thinking. What do they mean by "ready for native PCI-e 3.0". Does this mean you can plug a PCI-e 3.0 card in and it will work (i.e. marketing bull****) or does that mean I will be able to run a PCI-e 3.0 card at PCI-e 3.0 speeds with an Ivy Bridge CPU?

Your primary PCI-E slot gets its bandwidth from the CPU, when you put Ivy in, that first slot will become PCI-E 3.0 bandwidth as the slots are mechanically the same. It's different on multi-gpu set ups due to the switches, so in the current Gigabyte boards, they don't have the switches for PCI-E 3.0 in the other slots.

gropingmantis · 12 Oct 2011 at 22:31

Jokester said:
To run at PCI-E 3.0 speeds, you'll need a Ivy Bridge CPU and a PCI-3.0 card, and an honest motherboard manufacturer.

It is the last bit I am worried about.

Martini1991 said:
Your primary PCI-E slot gets its bandwidth from the CPU, when you put Ivy in, that first slot will become PCI-E 3.0 bandwidth as the slots are mechanically the same. It's different on multi-gpu set ups due to the switches, so in the current Gigabyte boards, they don't have the switches for PCI-E 3.0 in the other slots.

Its an ITX board so only one PCI-e slot anyway. So that means I'm on to a winner and a PCI-e 3.0 card + IB CPU will run at full speed?

Martini1991 · 12 Oct 2011 at 22:32

gropingmantis said:
It is the last bit I am worried about.

Above ^^.
Only Gigabytes sniper board for 1155 has those switches.
The MSI Gen 3 ones all have them.

Zinth · 13 Oct 2011 at 13:11

PCI 3.0 gunna be a big step in performance with the 6XX and the 7XXX cards ?

panyan · 13 Oct 2011 at 13:21

Martini1991 said:
Impossible.

maybe i misunderstood, have a read yourself

http://forums.ocdrift.com/index.php?/topic/182-review-msi-pcie-gen3-click-bios-ii-z68a-gd65/

Jokester · 13 Oct 2011 at 18:19

What ever difference there is, it isn't due to PCI-3.

Rofflay · 13 Oct 2011 at 18:34

Martini1991 said:
Above ^^.
Only Gigabytes sniper board for 1155 has those switches.
The MSI Gen 3 ones all have them.

ASrock Gen 3 too? And asus are due to launch Gen 3 boards as well.Are you saying only MSI and the sniper have True PCI-E 3.0? Perhaps for SLI yea but i thought all GEN3 boards had the same PCI-E 16x for at least the first slot and anything else would be 8x8x which is why the sniper was such a good PCI-E 3 motherboard as i think it gives 16x16x PCI-E 3.0?

Im a little hazy on the true info.

Martini1991 · 13 Oct 2011 at 18:38

panyan said:
maybe i misunderstood, have a read yourself

http://forums.ocdrift.com/index.php?/topic/182-review-msi-pcie-gen3-click-bios-ii-z68a-gd65/

The slots are mechanically the same, the difference is the bandwidth, which isn't there yet, it's impossible for there to be a difference.

Rofflay said:
ASrock Gen 3 too? And asus are due to launch Gen 3 boards as well.Are you saying only MSI and the sniper have True PCI-E 3.0? Perhaps for SLI yea but i thought all GEN3 boards had the same PCI-E 16x for at least the first slot and anything else would be 8x8x which is why the sniper was such a good PCI-E 3 motherboard as i think it gives 16x16x PCI-E 3.0?

Im a little hazy on the true info.

Sorry, the Asrock I believe has the correct switches like the MSI Gen 3 boards.

djxput · 13 Oct 2011 at 19:10

Been reading up on this myself (want to upgrade and get a board that supports 3.0 pci).

Asrock has a few with em; asus lists some but good luck in finding them it seems; I even called them on the phone today in the states (lol cuz the uk guy here didnt know jack) ... and I was just told they dont have em out yet

thought I was set on the p8z69 pro/gen 3

anyways ...

IMO if upgrading now might as well make sure to get the gen 3 since you can upgrade to Ivy supposedly fine.

Rofflay · 14 Oct 2011 at 09:17

IMO if upgrading now might as well make sure to get the gen 3 since you can upgrade to Ivy supposedly fine.

Yup get a quality corsair psu which will withstand 580 SLI, GEN 3 mobo with 8GB ram and then upgrade to IVY and have a base thats good for 4 years.

All i need do is keep dropping in the top of the line single GPU's and im good to go.A 5GHZ ivy bridge cpu is bound to last 4 years... and even then all you need do again is change the CPU/MOBO/RAM.

Power draw wont change as pci-3.0 spec does not have crazy power limits and the trend is now to save power anyways so its a good time to be on GEN3 imo.