I haqve just downloaded Zcash Claymore and in readme file there is something like:
Set the following environment variables, especially if you have 1-2GB cards:
GPU_FORCE_64BIT_PTR 1
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
Should I set them if I have ASUS rx 480 4gb? Where should I type it?