First, it has a shared expandable L3 cache, necessary because it is a native quad-core design. The one massive enhancement to the mix is that AMD finally has the ability to independently change core voltages for power savings. It now can also change the north bridge voltage independently of the cores. This is a huge win, we are told voltage differentials and problems with them were one of the main scaling headaches of the K8 core to this point.More info and a photo over at The Inquirer.
Next is memory. The new core will support 48-bit addressing and 1GB pages. Cray and SGI will be very happy with this, until they hit that memory wall again. There is also official co-processor support, strongly hinted to be on a HTX card. The key here will be the platform is aware of them vs having to hack them in.
AMD K8L processor architecture details
Posted on Thursday, May 18 2006 @ 00:10 CEST by Thomas De Maesschalck