AMD last week launched first Richland APUs, including two dual-core and two quad-core SKUs for mainstream notebooks. This week their specifications were added to a list of processors for notebooks on the AMD website. AMD also added two new SKUs, A8-Series 4557M and A10-Series 4657M. It's important to note that the two chips are not Richland parts, and they are based on Trinity core. Despite the fact that the parts fit into 35 Watt thermal envelope, they are listed along with LV and ULV products. That, as well as their model number, suggest that the processors may be produced in a different package than other 35W and 45W-rated APUs.
Feature-wise, the A8-4557M and A10-4657M look similar to A8-4500M and A10-4600M processors, released last May. They are quad-core parts with 4 MB of level 2 cache, clocked at 1.9 GHz and 2.3 GHz respectively. The APUs support Turbo Core feature, that can raise CPU clock up to 2.8 GHz on the A8-4557M, and up to 3.2 GHz on the A10-4657M. The chips integrate Radeon HD graphics with 497 MHz base frequency. The A8 GPU has 256 shader units, and can be clocked up to 655 MHz. The GPU on the A10-4657M can run as high as 686 MHz, and it has 384 shaders. As been already mentioned, both microprocessors have 35 Watt TDP. Based on their specifications, they should have the same performance as the A8-4500M and A10-4600M processors. The difference between 4x57M and 4x00M SKUs is in the packaging. The A8-4500M and A10-4600M use socket FS1r2, whereas the A8-4557M and A10-4657M are manufactured in a BGA package.
The summary of specifications of new APUs is provided below:
|A8-4557M||4||1.9 / 2.8 GHz||4 MB||256||497 / 655 MHz||35 Watt|
|A10-4657M||4||2.3 / 3.2 GHz||4 MB||384||497 / 686 MHz||35 Watt|