In May of next year, Advanced Micro Devices (AMD) will make its biggest mobile push to date with the release of "Danube," a new generation of notebook processors featuring a newer core technology, a new chipset, and choices spanning from single- to quad-core.
AMD (NYSE: AMD) has disclosed
some details on Danube, but the hobbyist site XBitLabs.com picked up some
further information on things like the core structure, as well as speeds and feeds.
AMD declined to comment on rumors and speculation.
AMD has lagged behind Intel (NASDAQ: INTC) in its support for the mobile sector, only recently hitting the market with something to counter its rival's highly successful Centrino platform.
It made its first real effort with "Puma" in early 2008, followed by "Yukon," "Congo," and "Tigris," with "Congo" aimed at the ultraportable, low-voltage market. These platforms always featured a few processors, a chipset, and graphics.
Prior generations of mobile processors have used AMD's K8 microarchitecture, AMD's first 64-bit architecture that dates back to 2003. The Danube generation is built on K10, the company's "Barcelona"-era architecture, which improves both integer and floating-point performance.
The jump to Barcelona also means AMD's first triple- and quad-core mobile processors: Of the dozen forthcoming CPUs, one is single-core, six are dual-core, two are triple-core, and three are quad-core. They will support DDR3 memory running at either 1066MHz or 1333MHz and have HyperTransport 3 interconnect speeds of 3.6GHz.
Danube will use the same core logic as the current Tigris platform, which has an ATI Radeon 4200-series DirectX 10.1 graphics controller. Laptops built with Danube are likely to use discrete GPUs either from AMD's ATI unit or from Nvidia.
However, the I/O controller will be new with quite a lot of high-speed features, such as up to 14 USB 2.0 ports, six Serial ATA-600 ports with RAID support, and Gigabit Ethernet.
The chips will be made using 45-nanometer silicon-on-insulator (SoI) process technology and have very low thermal envelopes, from 25 watts to 45 watts. The quad-core Phenom II P920 will have a 25-watt draw and run at 1.6GHz. The Phenom II N930, also quad-core, will run at 2.06GHz and 35 watts, and the X920 BE will be the fastest and hottest chip, with a 2.3GHz clock and 45-watt draw.
The X920 BE is joined by the dual core Phenom II X620 BE, where BE stands for Black Edition. Like AMD's desktop CPUs with the same label, these are unlocked chips, making it easy to overclock them. However, it would take a brave soul to overclock a laptop, as their components are not as accessible as desktops' and there isn't room for sizable heat sinks.
While Intel has focused on its laptop platform more in recent years, and clearly benefited from the consumer shift in that direction, AMD is closing that gap, said Nathan Brookwood, research fellow with Insight 64.
"For sure AMD has been focusing more and more on their mobile platforms over the last couple of years. Obviously they have to balance what they put into the near-term efforts using classic integrated graphics with their Fusion product," he told InternetNews.com.
"The good news there is all the work ISVs do now to develop software to utilize GPUs will be portable without any work needed to run on Fusion processors that show up in late 2010 or 2011," he added.
The jump from K8 to K10 will also be a help for AMD's mobile offerings, said Brookwood. "[The] K10 core has improved integer and floating-point performance, but I think that the main thing is for desktop replacement and mainstream products, you will have a bump in performance. If you go the desktop replacement route with a quad-core processor, then you will get a big bump in performance, because AMD was not offering quad-core in a mobile platform before," he said.
Read more...