Chart below shows dependence on processor score in bottleneck calculation with AMD Radeon R9 M290X graphic card for General Tasks.
We don't recommend you to downgrade your processor if you physically own it because there is no good reason to replace current processor with weaker one. Here is list of processors that will best work with your AMD Radeon R9 M290X graphic card. This processors with AMD Radeon R9 M290X will have less bottleneck than with your current AMD A6-6420K processor.
