Okay I really wasn't sure. I'm quite new to the Amd side of things.
If i remmber rigth the first AMD cpu that has pcie 3.0 support is the up comeing FM2+ kaveri apu.
I'm afraid that the ASUS Sabertooth 99FX Gen3 R2 is discontinued
There are a few FM2+ Motherboards that support PCIe 3 as of right now. All ASUS boards, there may be some from other manufacturers but i haven't run across any. But there are non for AM3+ and it seems that future support for the socket will not continue.
Still, your 290 will still do exceptional in all gameplay regardless.
discontinued? i dont see why its a new mobo lol maybe people realized its pointless to have gen 3 pcie with a cpu that dosent support it...
What if I go with dual 280Xs in CFX? Isn't that going to stress the bandwidth???
pci-e 3.0 is just a higher number, there are no GPU´s who utilize the full bandwith of pci-e 2.0 yet. So it does not matter at all, as long as you buy a am3+ board with 40 pci-e 2.0 lanes. That means that you can run a CF setup at 16X pci-e 2.0. This is the same speed as a CF setup on hasswell because on hasswell you can only run a 8x CF pci-e 3.0. But 8X pci-e 3.0 is equal to 16X pci-e 2.0. so there is no diffrence
its just intels marketing bullshit..
Grtz Angel ☺
I just want to point out that it doesn't matter what processor you have (whether it's AMD or Intel); you can still utilize mantle as long as you have an AMD graphics card.
To answer your question, an FX-8350 would be great for rendering, and it's definitely your best option if you can't afford to splurge on an i7.
While this has been true for a while, I have to wonder if it's going to stay true now that AMD has abandoned crossfire bridges in favor of having the cards communicate over PCI-E. I can't imagine it would use that much more bandwidth, but it might be a factor, and it's definitely something worth looking into in my opinion.
It is definitely worth looking into, but i don't think its enough to bridge the gap between the two generations yet.
Lets think of PCIe 2 and 3 like SATA 2 and 3. Really it was just a number and a theoretical upgrade until SSDs capable of surpassing SATA 2 came out.
There isn't anything currently that surpasses PCIe 2 so 3 is just theoretical even in multicard configurations. Benchmarks have shown this to be the case as well.
Yes it will staying true, because even if the bandwith on pci-e 2.0 will become an issue in CF, then you have the same bottleneck on hasswel, because like the amount of bandwith pci-e 3.0 8x is equal to x16 pci-e 2.0.
So if the bandwith become´s an issue, then you can only avoid it going ivybridge-E, because on ivybridge-E, you have 40 pci-e 3.0 lanes, so that makes it capable, of running a dual gpu setup, at dual bandwith. X16 pci-e 3.0 .
Okay. Thanks for the replies guys. This is a brilliant forum!
But would a 2way 290 CFX work on pci 2? Doesn't the pci 2 slow the crossfire down???
It really depends on what board you're looking at too. If the AMD board does X16/X16 then you're fine, but if it does X8/X8 then you might be cutting it close. I don't think you would see a difference, but I like to do research on little things like this before I pull the trigger just in case.
Don't forget about boards with PLX chips either. They pretty much double the PCI-E bandwidth over what the chipset would normally be able to do...albeit with a little more latency.
I honestly don't know the answer to that. If both slots run at X16 then you're most likely fine, but if both run at X8 when populated, then it might slow it down a little bit. Like I said though, I really don't know the answer, and it would require more research. It's just a concern I have with AMD moving away from crossfire bridges, since the cards will use more PCI-E bandwidth in crossfire now even if it is just a little bit.
The best thing to do would be to look at some crossfire benchmarks or just google around a bit to see if this is something you actually need to worry about. I would imagine it isn't something to worry about, but I always like to be 100 percent sure before I pull the trigger on something.
yes it will work as long as you buy a decen 990FX chipsetboard with 40 pci-e 2.0 lanes.
like Asus sabertooth, or Asus M5A99FX pro r2.0.
Slowing down is not an issue, if you compair it to hasswel. only ivybridge E socket 2011 will allow you to run a CF at 16X pci-e 3.0 or 32GB/s.
by the way im personaly not a fan of dual gpu setups in the first place, but okay thats a diffrent story.
as said before once you're in dual gpu both consumer platforms perform (z87/990fx) identically, so if you're worried the only option is server/workstation grade, which would cost quite a bit more
I'm considering the Sabertooth
Nope, wrong. You just may not find one.