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Yeah, PCI-E 2.0 just doubles the bandwidth of the video card, no biggy there. You should be able to hook it to a PCI-E 1.0 slot with no problem at all.
 
Yeah, it loses a little performance due to the PCI-Express 1.1 having less bandwidth, but my old mobo was 1.1 and the new one is 2.0 and I don't notice a huge difference.
 
I'm not sure, but I think u will only lose like 5% performance by using a PCI-E 1.1 over 2.0. The lost in performance is barely noticeable, so u shouldn't need to worry about that.
 
We just got to the point AGP isn't fast enough anymore, I wouldn't worry about this too much. I have a P35 board with PCI-e 1.1 on it and a 4870, and it's blazing fast with anything I throw at it. Usually this bandwidth isn't the bottleneck really, unless with cards StriderVM posted.

With the next generation of cards I'd keep it in mind though.
 
lol, thats a load of crap Cid, AGP4x wasn't even saturated till the 8800 series.
 
it is actually, the big improvements are coming with PCI-E 3.0
 
I thought it was AGP8x that was finally saturated with the 8800 series?

While we're talking about graphics ports, I have a random question. I remember reading somewhere that one of the features AGP8x added over AGP4x was one for multiple AGP ports. Why, then, did we never see it, and why, then, did multiple card technology (SLi and Crossfire) not show up until PCI Express ports came around?

Edit: I don't remember if this is where I read it, but here's a source claiming it.

Bjorn3d.com -NVIDIA's new AGP 8X GPUs, Satisfying Your Daily Tech Cravings Since 1996
 
no it is not true in the case of 128 bit cards. their performance will be same as striderVm said.
only very powerful cards will suffer on pci-e1.1 because they will not get the bandwidth they require for full performance.
 
I thought it was AGP8x that was finally saturated with the 8800 series?

While we're talking about graphics ports, I have a random question. I remember reading somewhere that one of the features AGP8x added over AGP4x was one for multiple AGP ports. Why, then, did we never see it, and why, then, did multiple card technology (SLi and Crossfire) not show up until PCI Express ports came around?

Edit: I don't remember if this is where I read it, but here's a source claiming it.

Bjorn3d.com -NVIDIA's new AGP 8X GPUs, Satisfying Your Daily Tech Cravings Since 1996
AGP 3.5 was capable of multiple agp bus's one a single board, but not multiple ports per bus.

AGP in its entirety was killed with the throughput requirements of the G80.

its not the memory bus width that causes the difference, its the overall read-write throughput of the card. the high clocked shaders in the G80 more then doubled the throughput requirement of the card, which is why it is outright owns a 7900GTX
 
last time, there were issues regarding PCI-E 2.0 cards on non PCI-E 2.0 boards, specially on via based chipsets but it seems to be not a problem now.
Im using a 9600GT (a pci-e 2.0 card) on an ol nForce4 based PCI-E 1.0a chipset.
 
theres a big performance change comin to PCI which will adversely affect older hardware, due to nvidia failing to get rights to the use of PCI Prefetching.
 
last time, there were issues regarding PCI-E 2.0 cards on non PCI-E 2.0 boards, specially on via based chipsets but it seems to be not a problem now.
Im using a 9600GT (a pci-e 2.0 card) on an ol nForce4 based PCI-E 1.0a chipset.
Most of these problems came from the Via chipset used on Asrock's hybrid boards, I had one of those myself until Summer. Those had a PCI-e 4x slot, which required BIOS updates for the HD3870 to work, and even then not every GPU would work on it. I'd recommend against getting this board now for this reason.
 
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