Has anyone seen a difference between the cgminer reported hashrate and pool reported?
Cgminer shows a steady 500GH for me at 650mhz but btcguild says around ~455gh.
Cgminer is showing me 422GH/s at stock speeds. Eligius shows < 400GH/s.
Where do you go to adjust the clock speed? I haven't been able to figure out if it's a cgminer option or somewhere else in the firmware.
Mining pools are known to report inaccurate hash rates. This is because they do not average results or even monitor them. It takes snap shots from specific points in time which have no relation to your actual output. It's a good indication, but certainly not a real-time gauge of your productivity.