AMD Announces "Fusion" CPU/GPU Program
Anh Tuan Huynh
October 25, 2006 4:46 AM
comment(s) - last by
The future of CPU/GPU computing
completion of AMD’s acquisition of ATI
, AMD has announced its working on new CPU/GPU silicon that integrates the CPU and graphics processor into a single unit. The upcoming silicon is currently codenamed
and is expected in the late 2008 or early 2009 time frame. AMD claims Fusion will bring:
AMD intends to design Fusion processors to provide step-function increases in performance-per-watt relative to today’s CPU-only architectures, and to provide the best customer experience in a world increasingly reliant upon 3D graphics, digital media and high-performance computing. With Fusion processors, AMD will continue to promote an open platform and encourage companies throughout the ecosystem to create innovative new co-processing solutions aimed at further optimizing specific workloads. AMD-powered Fusion platforms will continue to fully support high-end discrete graphics, physics accelerators, and other PCI Express-based solutions to meet the ever-increasing needs of the most demanding enthusiast end-users.
AMD expects to integrate
for all its product categories including laptops, desktops, workstation, servers and consumer electronics products. Judging by the inclusion of PCI Express support, it would appear the integrated GPU is more of a value solution—similar to Intel’s cancelled
processor. It is unknown if AMD will retain the current Athlon and Opteron names with the launch of
. This isn't too surprising as
AMD and ATI previously promised unified product development including vague mentions of hybrid CPU and GPU products.
AMD also previously announced its
open architecture as well.
In addition to
, AMD expects to ship integrated platforms with ATI chipsets in 2007. The platforms are expected empower commercial clients, notebooks, gaming and media computing. AMD expects users will benefit from greater battery life on the next-generation Turion platforms and greater enhancements with AMD Live! systems.
reported on ATI's chipset roadmap which outlined various integrated graphics and enthusiast products.
With the development of
and upcoming integrated AMD platforms, it is unknown what will happen to NVIDIA’s chipset business, which currently relies mainly on AMD chipset sales.
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RE: Vertex Shaders
10/25/2006 4:24:23 PM
Integrating the GPU with the CPU is not all about graphics; it's about making the tremendous parallel processing power of the GPU available for general computation, including graphics. Admittedly, I cannot imagine all the different applications for such parallelism any more than you can. Scientific computation will use it, at least, but it goes far beyond that. The belief is that the general-purpose GPU is inherently, fundamentally such a sound concept that people like you and me will soon come up with a thousand creative ways to put it to work, given the chance.
Readers who have written assembly code or programmed microcontrollers will best understand the point I am trying to make, because at the lowest programming level, GPU programming differs radically from traditional CPU programming. The CPU is code-oriented; the GPU, data-oriented. Wherever the quantity of data is large and the parallel transformation to be applied en-masse to the data is relatively simple, the general-purpose GPU can, at least in theory, greatly outperform any traditional CPU. The CPU, of course, is far more flexible, and still offers by far the best way to chain
calculations together. The marriage of the CPU to a general-purpose GPU is thus a profound concept, indeed.
The general-purpose GPU is an idea whose time has come. By acquiring ATI, AMD makes a serious attempt to dominate the coming generation of computer technology, taking over Intel's accustomed role as pacesetter and standard bearer. Of course there is no reason to expect Intel to sleep through this transition. If Intel responds competently, as one assumes that it will, then we are in for some very interesting times in the coming few years, I think.
There is a third element, besides the CPU and the GPU, which will emerge soon to complement both, I think. This is the FPGA or field-programmable gate array. Close on the heels of the CPU-GPU marriage, the integration of the FPGA will make it a triumvirate, opening further capabilities to the user at modest additional cost.
AMD/ATI will not be able to ignore this development, even if their general-purpose GPU initiative succeeds, as I think it will. Interesting times are coming, indeed.
RE: Vertex Shaders
10/25/2006 5:01:56 PM
The triumvirate system you outline is truly a very interesting concept. Seen from a hardware point of view it is all you can dream of: the CPU - incredibly optimized for sequential execution, the GPU - incredibly optimized for parallel execution and the FPGA - harness the power of custom logic to implement time critical operations and to implement never-though-of-before stuff.
As much as I would want to see this happen, I think that one should recall that hardware is only part of the game. The software aspect is just as important. I hope a solution can be found here, because its a big challenge. Software engineers needs to learn parallel processing techniques and they need to learn the co-design concepts such that they can utilize the FPGA - and they will need to ally with hardware engineers or learn a hardware description language themselves.
All these splendid hardware ideas will fall short if the software guys don't know exactly what they are dealing with and how to utilise it. Completely new programming paradigms might need to be conceived.
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