HD 4XXX cards support only OpenCL 1.0 due to hardware limitations. If you have a modern CPU you may use it instead of HD 4850 for OpenCL calculations.
You may use GPU Caps Viewer to check your available OpenCL devices.
realized thanks to the processor core 2 is weak, then you have to change the
04.12.2016, 13:06:34 пользователь redfury (firstname.lastname@example.org) написал:
Re: On the HD 4850 OpenCL 1.0 can be exchanged for OpenCL 1.1 ????
If you want to use OpenCL you might want to find a more recent video card. The old HD 4850 is past its best before date for modern graphics APIs.