The output of BufferBandwidth on FirePro-8750 is:
Selected Platform Vendor : Advanced Micro Devices, Inc.
Device 0 : ATI RV770
Expected Error: Device does not support cl_khr_local_int32_base_atomics extension!
I am doubtful that the device does not support Atomic operations. It appears to me some software issues.
Tried finding in Specs, but could not find the details.
Thanks and regards,