AMD A6-3650 Llano APU Review

Author: MAC
Date: August 2, 2011
Product Name: A6-3650
Part Number: AD3650WNGXBOX
Purchase at NCIX: | UK
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Codename 'Llano' - A Quick Look at the A6-3650 APU

Although we still haven't managed to get our hands on any retail packaging, this is what the logos for the A-series APUs looks like along with a quick glimpse of "FX" branding that will make its way into other processors. AMD's Vision branding has now been carried into the processor market as well so expect a drastic change from the ordinary on this front too.

Gone are the usual "Phenom" and "Athlon" monikers since it was decided that returning to a standard number / letter scheme would help clear up some confusing product overlap.

Click on image to enlarge

As you can see, our A6-3650 sample is physically identical to the previous Athlon II and Phenom II processors that we are all familiar with. However, these new chips have 905 pins instead of 938 pins, hence the reason for the new FM1 socket. As we explained in our preview of the GIGABYTE A75-UD4H motherboard, AMD have wisely decided to keep the same AM2/AM3 mounting bracket for the FM1 socket, so all your previous CPU coolers will be re-usable. Hawk-eyed enthusiasts will notice that this sample was manufactured in the 23rd week of 2011, so it is even fresher silicon than our A8-3850.

Click on image to enlarge

Much like Intel have done with Sandy Bridge, AMD have elected for a 100Mhz reference clock on the A-series APUs, which they aptly call the APU bus. Unlike Intelís approach though, this new APU bus has good a bit of overclocking headroom, with early results ranging from 133Mhz to 160Mhz.

Thanks to some new power-saving features and the 32nm manufacturing process, these new chips can undervolt themselves by an incredible amount when idle. As you can see in our screenshot, despite the fact that our sample would usually default to 1.020V, it would often dip down to 0.456V when idle. Under full load, the core voltage would shoot up to about 1.416V. By the way, both the idle and full load voltages were slightly higher than what we saw on the A8-3850, which were 0.444V and 1.392V respectively.

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