New mobile AMD APUs sighted

One month ago user "Konrad" in 3DCenter forum posted several slides from AMD mobile roadmap. The slides included details of AMD mobile platforms until the end of 2012. Also, the slides revealed AMD plans to refresh current Sabine platform later this year with seven new "Llano" Accelerated Processing Units (APUs). New processors are A4-3305M, A4-3320M, A4-3330MX, A6-3420M, A6-3430MX, A8-3520M, and A8-3550MX. All these models appeared in recently revised PDF file on HP website, titled "HP Pavilion dv7 Notebook PC Maintenance and Service Guide":

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The Maintenance and Service Guide has a peculiar way of referring to processor clock speeds. Turbo Core and stock (default) frequencies are specified as FSB and processor frequency. Also, the document specifies 45 Watt Thermal Design Power for all new models, which contradicts to previously leaked details of A4-3320M, A6-3420M and A6-3520M CPUs. The guide also mentions 4 MB L2 cache for A4-3300M and A4-3305M CPUs. This is incorrect for A4-3300M, and it may be incorrect for A4-3305M as well. Nevertheless, this document is the only source of information on upcoming mobile APUs, therefore we shouldn't discount published data based on a few errors in specifications.

The slowest new chip, AMD A4-3305, operates at 1.9 GHz stock frequency, which can be increased up to 2.5 GHz when Turbo Core feature is engaged. The frequencies match specifications of A4-3300M APU, although the 3305M may have higher 45 Watt TDP. It's not obvious what other differences are between these chips. It's possible the A4-3305M will have higher L2 cache, or better on-chip graphics.

Six remaining CPUs are going to supersede 6 models from the initial launch. A4-Series A4-3320M and A4-3330MX have two CPU cores and 2MB of last level cache. These models will replace A4-3300M and A4-3310MX. Two forthcoming chips in A6-Series, A6-3420M and A6-3430MX, are going to take the place of A6-3400M and A6-3410MX processors. These microprocessors, along with A8 parts, feature 4 CPU cores and 4 MB L2 cache. A8-3500M will be upgraded with A8-3520M, and A8-3550MX will substitute A8-3530MX, which in turn will supplant A8-3510MX. All six models are clocked 100 MHz higher, and have 100 MHz higher Turbo Core speed, than their predecessors. The only exception to this is A4-3330MX, which, if we believe the guide, has 300 MHz faster stock speed. We suspect that new microprocessors will utilize the same type of integrated graphics as other chips from the same series, i.e. Radeon HD 6480G on A4-Series, Radeon HD 6520G on A6-Series, and Radeon HD 6620G on A8-Series.

Preliminary specifications of all new processors are presented in the table below:

Model	Cores	Frequency	Turbo Frequency	L2 cache	TDP
A4-3305M	2	1.9 GHz	2.5 GHz	2 MB	45 Watt
A4-3320M	2	2 GHz	2.6 GHz	2 MB	45 Watt
A4-3330MX	2	2.4 GHz	2.6 GHz	2 MB	45 Watt
A6-3420M	4	1.5 GHz	2.4 GHz	4 MB	45 Watt
A6-3430MX	4	1.7 GHz	2.4 GHz	4 MB	45 Watt
A8-3520M	4	1.6 GHz	2.5 GHz	4 MB	45 Watt
A8-3550MX	4	2 GHz	2.7 GHz	4 MB	45 Watt