Let's say I've used the ATiTool sliders to set my core and mem clock speeds. According to the clock fields in ATiTool, it's theoretically running happily at the new clock settings. But, those 2 fields just tell me what they're SUPPOSED to be set to. How do I independently verify that the card is in fact actually running at those specific new speeds? Not just a relative indicator like a benchmark...but something that interrogates the card and reports the actual measured core and mem frequencies. If that's not possible, then something that interrogates the card and reports the actual ref clock setting, and/or other settings that control final core and mem clock speeds. Is there something like CPU-z that dynamically reads speed(s) and provides a periodic update or snapshot? For example, while it's running CPU-z might report that a system's 2200MHz CPU is running at 2198.2MHz one moment, and 2201.1MHz a few seconds later.