Hi! First, I would like to thank Dell Technical Support for providing an updated AMD Catalyst software package for Dell Inspiron 3537 with Radeon HD 8670M that addressed the existing issue with performance and overall system stability. It works great so far.
Now, the only problem that I have with it is that the driver is not supported by the toolset I'm using for my work. It includes AMD APP SDK and few additional libraries. The lowest supported version of Catalyst that you need in order to be able to use them is 14.4, although some of the code samples that I would like to work with at home make use of AMD Mantle SDK (and the corresponding driver, which is shipped only since Catalyst 14.9 for Enduro-enables systems). Sadly, right now I have no information regarding to which version of Mantle API is being used (listings I have were last "heavily" modified in September, and the SDK itself is not currently available to me), but I can confirm that I'm using APP SDK 2.9.1 and Bolt 1.2 GA for Microsoft Visual Studio 2013.
Is there any chance you can provide a Catalyst 14.9 (or newer) package? I would've used the non-OEM one, but they still have some ACPI-related issues (when closing the lid will result in permanent black screen, and the device also can't be put into G1 State or powered off)...
http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/
http://support.amd.com/en-us/kb-articles/Pages/AMDCatalyst14-9WINReleaseNotes.aspx