I'm using RivaTuner v2.0 Release 15.5 I was able to unlock to 16 pipes and 6 vertex shaders via RivaTuner (checking the bit field/bit mask for the two HW Masked). The problem I have is that 3DMARK03 and 3DMARK05 is not showing the core overclock, but it does show the memory overclock. EDIT: I locked the pipe and left the vertex shader (12/1/6) and the core overclocks and shows up in 3DMARK. I locked the vertex shader and unlocked the pipe (16/1/5) and the core doesn't overclock (RivaTuner shows 400 but 3DMARK shows stock 324) Here are my 3DMARK03 and 3DMARK05 scores: 12/1/5 (325/700) 8279/3471 16/1/6 (325/700) 9042/3882 16/1/6 (325/850) 9319 12/1/6 (400/850) 9842/4288 Does anyone think I can overclock the core with 16 pipes? If not, should I leave it at 12/1/6 (400/850) since it has the highest 3DMARK scores or should I go to 16/1/6 (325/850)?