pcie vs pcie2.0

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Bigbacon

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Does running new cards like 260,280,4870x2, etc on a non PCIe 2.0 board make a difference?
 
i know the bandwidth hurts on a p45 when u crossfire compared to x48 bandwidth. i'm not sure how it would affect a single card though
 
Not sure tbh, I have never seen anyone explain why the bandwidth usage occurs, if you can figure that out then you can calculate it, unless you go the toms route and just limit the amount of pins available, not my preferred method and their reviews on the subject get you nowhere to understanding the why's.
 
I've seen some say it does not, as to why, I would like to know as well, or at least have a [H]ard confirmation.
 
it makes a difference just not that much of one. do some searches and you will see that this has been threaded to death. for instance crossfire on a P45 board is very close to a X48 board, with the exception of a few games. now the 16x by 4x crossfire did suffer some. but y and large there is not a big difference in game play between PCIe and PCIe 2.0. not enough to warrant upgrading at any case. If building new then of course go with the new standard.

PCIe 2.0 does make a big difference in one area, memory limited cards. if you have a low end card or if you are running a high end game that has to shuffle a lot of textures in an out of the system memory then there should be a noticeable difference.
 
Agreed, its kinda like agp2x vs 4x vs 8x. I mean sure each time the next came out there was a synthetically measurable difference but could we really tell
 
For a single card there shouldn't be too much difference unless you have a GTX 280, or 4870X2. After that, for a single card there shouldn't be too much difference.
 
Bigbacon said:
Does running new cards like 260,280,4870x2, etc on a non PCIe 2.0 board make a difference?
Click to expand...

According to Kyle (admin of this site) he thinks its a non-issue with regards to gameplay. He has mentioned this more than once. It only means something with xfire and 16x 4x, but 16x 8x (2 cards operating at 8x) means little in real world gaming terms.

I had my 4870x2 on my Pcie 1.0 Abit QuadGT (P965) and now on my Pcie 2.0 P45 motherboard and I noticed no differences at 19x12

There was a discussion about this in the 4870x2 preview thread with Kyle and others talking about this a lot and when I PM'd and asked Kyle if he would add some results to the review between Pcie 2.0 and Pcie 1.0 he said no because there was no gameplay differences.
 
ok great, thanks.
So for the record excluding memory limited cards the difference is not significant but does increase the higher end the card gets.
 
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