AMD considered Kaveri with GDDR5

Posted on Monday, Jan 20 2014 @ 13:16 CET by Thomas De Maesschalck
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HotHardware delved into the technical documentation of AMD's Kaveri APU and discovered that AMD did indeed consider a quad-channel GDDR5 memory interface for Kaveri. Likely the company abandoned the idea because it was impratical, GDDR5 isn't bonded in sticks for easy motherboard socketing and soldering the memory to the motherboard would be more expensive and shift RMA responsibilities from the memory maker to the motherboard manufacturer.
It's also possible that this GDDR5 mode could be implemented alongside a DDR3 main memory pool. It's possible that future versions of the Kaveri APU might implement 2x 64-bit DDR3 channels alongside 2x 32-bit GDDR5 channels, with the latter serving as a framebuffer for graphics operations. (AMD references 32-bit controllers at one point in the documentation, which is why this seems to be the most likely configuration, given that four memory controllers are mentioned in Kaveri's spec).

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Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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