No longer is the knowledge of technical details sketchy

May 13, 2013 08:36 GMT  ·  By

AMD's Kabini accelerated processing units, set to be used in notebooks, have been the talk of the industry for a while now, along with the Richland APU series and Intel's Haswell upcoming collection.

However, the information available on the Kabini line has been, for the longest time, quite incomplete, due to the sparsity of leaks regarding them.

This has now changed, thanks to the HP 255 notebook datasheet (PDF file) that went online not too long ago.

There is actually more or less complete information now, on the A4-5000, A6-5200, E1-2500 and E2-3000.

The core count and use of HD 8000 graphics were known before, but the HP 255 datasheet has also revealed the GPU models and clock speeds.

Not only that, but the PDF file marks the first appearance of the A4-5000 SKU.

The A4-5000 use a quad-core processor with a clock speed of 1.5 GHz and 2 MB cache, plus the Radeon HD 8330 GPU.

The A6-5200 is stronger, with four cores at 2 GHz clock speed and 2 MB cache, plus Radeon HD 8400 GPU.

The E1-2500 is a dual core running at 1.4 GHz. It boasts 1 MB of cache and Radeon HD 8240 graphics.

As for the E2-3000, it is also a dual core, but with 1.65 GHz frequency, 1 MB cache and Radeon HD 8280 graphics.

Overall, the clocks of the Kabini APUs are 5-6% lower than clocks of Bobcat-based E1-1500 and E2-2000 processors.

Improvements to the micro-architecture should be more than enough to compensate for clock differences though. The Kabini should end up faster in tests and programs than their predecessors, which eat less power, especially the ULV ones. There would not be much point in releasing the new collection otherwise.

Now we just need to find out what the GPU speeds are (probably 450-500 MHz) and the TDPs (15W maybe).