OK, getting 1535M/sec with b67 using cat 12.6 so will update to cat 12.8 now.
UPDATE: With cat 12.8, results: 1538.7M/sec
Tested both with and without Crossfire.
Better, but no cigar
UPDATE: With cat 12.8, results: 1538.7M/sec
Tested both with and without Crossfire.
Better, but no cigar