As we know, OpenCL GPU Runtime is inclueded in Intel Graphics Driver.
By comparing with/without OpenCL CPU Runtime installed, with "Intel GPU" selected as OpenCL device, PcMark 10 gets different score in "Spreadsheets Score".
Related Spreadsheets Test items:
Recalculate Monte Carlo
Recalculate Energy market
Will OpenCL CPU Runtime benefit application running with OpenCL GPU Runtime?
With OpenCL CPU Runtime installad, will OpenCL appcalition run between CPU and GPU?