Feeds

AMD Phenom CPUs to support DDR 3?

Choosing a cloud hosting partner with confidence

AMD's Phenom processors weren't expected to gain DDR 3 support until H2 2008 when the chip maker introduces its Socket AM3 interconnect. But documents posted on the company's website show the upcoming, Socket AM2+ versions are DDR 3 compatible too.

AM2+ is all about supporting HyperTransport 3, the latest version of the technology AMD uses to connect its processors to host computers' system chips. AMD has said AM2+ will support DDR 2 memory, controlled using its CPUs' built-in memory manager hardware.

DDR 3, on the other hand, already supported by Intel's P35, G33 and other 'Bearlake' chipsets, hasn't officially been due to be supported until H2 2008.

However, AMD's BIOS and Kernel Developer's Guide for AMD Family 10h Processors, essentially the chip series' low-level programming bible, reveals "support for DDR 2/DDR 3 DIMMs in product variations".

Of course, AMD would want to architect in DDR 3 support, in order to ensure the second-generation Phenoms - and, indeed, the recently released 'Barcelona' third-generation Opteron server CPUs - are able to handle DDR 3 in the near future without AMD having to design a whole new memory controller and re-validate the chip with this new component.

The question is, will Phenoms be able to use DDR 3 out of the gate, or will their use of the Socket AM2+ bus preclude support of DDR 3 until AM3 comes out?

Website security in corporate America

More from The Register

next story
Bono: Apple will sort out monetising music where the labels failed
Remastered so hard it would be difficult or impossible to master it again
Oi, Tim Cook. Apple Watch. I DARE you to tell me, IN PERSON, that it's secure
State attorney demands Apple CEO bows the knee to him
Your chance to WIN the WORLD'S ONLY HANDHELD ZX SPECTRUM
Reg staff not allowed to enter, god dammit
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Monitors monitor's monitoring finds touch screens have 0.4% market share
Not four. Point four. Count yer booty again, Microsoft
Getting to the BOTTOM of the great office seating debate
Belay that toil, me hearty, and park your scurvy backside
Hey, Mac fanbois. HGST wants you drooling over its HUGE desktop RACK
What vast digital media repository could possibly need 64 TERABYTES?
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.