ATI CrossFire Bridge Sighted
Anh Tuan Huynh
June 11, 2006 12:31 PM
comment(s) - last by
Image courtesy VR-Zone.com
More RV560 and RV570 details
previously reported ATI would be launching 80nm mainstream GPU parts in the near future. The new
RV560 and RV570
80nm parts will launch in August and September of 2006 and integrate the CrossFire compositing logic onboard. This will allow
compatibility with CrossFire capable motherboards. Dongle-less CrossFire will not move all data across the PCI Express bus however. Motherboard manufacturers told
a separate bridge would still be needed for dongle-less CrossFire.
VR-Zone may have
snapped a few images
of the required bridge shown behind closed doors to partners at Computex 2006. The new CrossFire bridge appears very similar to the NVIDIA SLI bridge. Never the less, there will be no need to find specific master or slave cards with the new RV560 and FV570 parts as all cards will have an onboard composite engine. The VR-Zone image shows two bridges connecting the two video cards.
Motherboard manufacturers have told
an ATI board will not be required for dongle-less CrossFire, however these same sources also originally claimed CrossFire on RV560 and RV570 wouldn't require a bridge like NVIDIA's SLI.
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RE: Crossfire and nVidia
6/11/2006 7:51:24 PM
Technically they can work on each others' chipsets, they just don't LET them work. All it is is data passed over the PCIe bus, nothing particularly special about it.
RE: Crossfire and nVidia
6/12/2006 1:51:01 PM
I believe someone had SLI up on an AMD board using ULI southbridge using the leaked drivers. It was slow compared to regular SLI but it worked.
SLI and Crossfire is not a mainstream product. It's based on the enthusiast market and the more money than brains market.
I know nVidia fanboys like to complain about the ATI external dongle but I must be in the minority when I say only the front and side of my computer case faces me on a daily basis and not the back. Of course, your computing habits may differ and the back of your computer case might be facing towards you. If anything, a more valid criticism would be Crossfire (until very recently) not being polished enough to be released at all.
SLI did not surprise ATI. What surprissed ATI was the positive reaction to SLI as they did not expect people to buy two video cards for a 30-60% increase in performance. And at the time of SLI's release, it was buggy and that was roughly best case scenario. Right now the performance boost and stability of SLI is much higher but still not as good as a single card solution. So ATI's kneejerk reaction was Crossfire which was more hot air than actual product for a long time.
ATI is trying to take it to the next level by getting you to buy three video cards, one for physics performance while nVidia is pushing quad SLI. I have money but I find dual video cards a waste of my money, I'm not getting suckered into three or four card solutions.
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