PCI Express 2.0 question

[easyrider]

Hm. Well thats a load of my mind. The performance difference is neglegible. Like half a frame in most cases. I shouldnt think i would notice any crippling with a 4870 on a 1.1 slot then.

good good

Indeed,

Mobo manufacturers always sell us things we don't need right now!

 

[Greebo]

Its from Tomshardware.


http://www.tomshardware.com/reviews/pci-express-2-0,1915-5.html

Cheers for that Easy. Just what I had been looking for.

I knew theory and the bandwidths but hardly anybody does comparisons or list the bandwidth required with their cards.

 

[Greebo]

Indeed,

Mobo manufacturers always sell us things we don't need right now!

Hence pci-e 3 next year. I guess they will be on the new Nehalem mobos first.

 

[easyrider]

Cheers for that Easy. Just what I had been looking for.

.

No worries mate

 

[krooton]

Anyone know what PCIE version the P35 Neo2-FR has?

Google gives me nothing

 

[Puppetmaster]

i guess a s939 a8n sli deluxe will be 1.0a? its nforce 4 btw.

 

[AWPC]

Anyone know what PCIE version the P35 Neo2-FR has?

Google gives me nothing

Most probably 1.1 according to Intel P35=1.1 just looked this up as I have a
P35 and getting a 4850 for it.

 

[krooton]

Most probably 1.1 according to Intel P35=1.1 just looked this up as I have a
P35 and getting a 4850 for it.

Yay!

Now all I need is the money for a 4870!

 

[Durzel]

So what PCI-E is the Asus P5W64-WS Pro then? Pretty old by todays mobo standards (975X) so I'm fearing its PCI-E 1.0.... I'll be damned if I can actually find any definitive answer anywhere though.

 

[moomoomoo]

still dont know if my asus p5n32-e sli plus , nforce 6 chipset will be it ok, can any one tell meeeee.

 

[Greebo]

i guess a s939 a8n sli deluxe will be 1.0a? its nforce 4 btw.

Thought it was only certain chipsets that had problems running 2.0 cards on 1.0a slots?

I ran my 8800GTS G92 fine on my DFI Lanparty Expert 939 mobo. I'm sure that was pci-e 1.0a.

 

[FrostedNipple]

I can confirm that the 4850 is like god on the Asus P5B

 

[AWPC]

So what PCI-E is the Asus P5W64-WS Pro then? Pretty old by todays mobo standards (975X) so I'm fearing its PCI-E 1.0.... I'll be damned if I can actually find any definitive answer anywhere though.

Yep it would be I have the P5WDH Deluxe with 975X=1.0a
ftp://download.intel.com/design/chipsets/specupdt/31015902.pdf

 

[Durzel]

Bums Ah well, I expected the worse and wasn't disappointed.

 

[AWPC]

Might be worth a mobo upgrade as I found that my 975X is bottlenecking my 8800GTX + X6800!!

 

[schumi]

Found some more interesting info for those who have a PCI-E 1.0a board like mine (Gigabyte P965-DS3) and are wondering if moving to a PCI-E 2.0 motherboard makes any difference.

http://www.tomshardware.com/reviews/crossfire-meets-pci-express,1761-5.html

 

[msaunders]

So if I hold off for a 4870X2 , is my P5K going to handicap the cards performance as its only 1.1 ?

opinions ?
M

 

[billybob89]

dam it lol there's me thinking i could get away with just upgrading my cpu and gpu now i have to upgrade the whole lot

 

[Deleted member 66701]

FWIW I have benched my 4870 on both an Asus Commando (v1.0a) mobo and an Asus Maximus Formula SE (v2.0), same hardware(Q6600, 4gb, Velociraptor), fresh install of Vista x64 and these are the results:-

15626 on the Commando
16410 on the Maximus

5% difference.

Commando was @ 400*9 - 3.6ghz
Maximus was 450*8 - 3.6ghz

So I can conclude:-

@ 1280x1024 v1.0a isn't that much slower than v2.

Of course, no idea how high res and high aa/af will change those results. Also, wouldn't like to try Crossfire on the Commando.

 

[uvarvu]

Now for the million dollar question...

What will the impact be when running a 4870X2 on a PCI Ex 1.x board with all of the bandwidth intensive features enabled?