AMD Reveals More "Fusion" Details
Anh Tuan Huynh
November 17, 2006 10:01 AM
comment(s) - last by
CPU and GPU all in one to deliver the best performance-per-watt-per-dollar
AMD today during its analyst’s day conference call unveiled more details of its next-generation
CPU and GPU hybrid. Early mentions of
first appeared shortly after AMD’s acquisition of ATI Technologies was completed a few months ago.
AMD is expected to debut its first
processor in the late 2008 to early 2009 timeframe.
AMD claims: “
-based processors will be designed to provide step-function increases in performance-per-watt-per-dollar over today’s CPU-only architectures, and provide the best customer experience in a world increasingly reliant upon 3D graphics, digital media and high performance computing.”
The GPU and CPU appear to be separate cores on a single die according to early diagrams of AMD’s
architecture. CPU functionality will have access to its own cache while GPU functionality will have access to its own buffers. Joining together the CPU and GPU is a crossbar and integrated memory controller. Everything is connected via HyperTransport links. From there the
processor will have direct access to system memory that appears to be shared between the CPU and GPU. It doesn’t appear the graphics functionality will have its own frame buffer.
is a hybrid CPU and GPU architecture, AMD will continue to produce discrete graphics solutions. AMD still believes there’s a need for discrete graphics cards for high end users and physics processing.
Also mentioned during the conference call is AMD’s new branding scheme regarding ATI products. Under the new branding scheme, chipsets for Intel processors and graphics cards will continue on with the ATI brand name. ATI designed
chipsets designed for AMD platforms will be branded under AMD as previously reported.
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RE: Same issue as with all discrete to integrated transitions...
11/21/2006 3:42:10 PM
No, it would depend on the cards crossfire compatibility and the rendering mode employed by the software in question.
Remember, the first Crossfire cards were not clocked the same as their companion cards, so ATI launched with a way of dividing the work up between the too cards based on how much could be done by each.
Still, I think that the differences between the x1300, x1600, and x1900 cards is enough to make them incompatable in crossfire. As a result, if they are sticking a 300 line card on the CPU, then you will probably have to get a matching 300 line card if you are going to run Crossfire. I doubt anyone would do that though, as these are meant to replace integrated graphics. I am sure for the extra cost added by a fusion chip and the cost of a 300series video card you could buy an add in card that was more powerful, and useful.
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