Arriving with reference NVIDIA clockspeeds from KFA2 we set about upping the ante by using the same utility we use for all NVIDIA based graphics cards, the MSI Afterburner Utility.
First of we see the stock settings are precisely as NVIDIA intended with 732MHz on the core and a memory clockspeed of 3600MHz.
Using MSI's own Afterburner tool (2.2.0 Beta 7), I slowly increased the core clockspeed until I encountered difficulties.
The maximum overclock I achieved was a respectable 877MHz on the core and 4148MHz on the memory. These speeds are however some way off our best overclocking GTX570s. Both the GIGABYTE and MSI cards easily surpassed these speeds. While I could get over the 900MHz boundary, instability proved to be a problem in some games and as such I was forced to down clock the card slightly to reach stability.
Core temperatures
To measure the temperature of the card we first measure the ambient temperature. Our review station resides in an air conditioned room with the temperature set to a comfortable 23c.
The KFA2 GTX570 perfectly mirrored the GTX570 from MSI in terms of temperatures although I'm inclined to say that should the clockspeeds also have been matched, the MSI would be the better performing card. This isn't of course to say the KFA2 cooler is by any means inefficient as it clearly is. Keeping an overclocked GF110 core well under 80c while under 100% load is a great achievement!
Let's move on to the acoustics and power consumption of today's review sample...
First of we see the stock settings are precisely as NVIDIA intended with 732MHz on the core and a memory clockspeed of 3600MHz.
Using MSI's own Afterburner tool (2.2.0 Beta 7), I slowly increased the core clockspeed until I encountered difficulties.
The maximum overclock I achieved was a respectable 877MHz on the core and 4148MHz on the memory. These speeds are however some way off our best overclocking GTX570s. Both the GIGABYTE and MSI cards easily surpassed these speeds. While I could get over the 900MHz boundary, instability proved to be a problem in some games and as such I was forced to down clock the card slightly to reach stability.
Core temperatures
To measure the temperature of the card we first measure the ambient temperature. Our review station resides in an air conditioned room with the temperature set to a comfortable 23c.
The KFA2 GTX570 perfectly mirrored the GTX570 from MSI in terms of temperatures although I'm inclined to say that should the clockspeeds also have been matched, the MSI would be the better performing card. This isn't of course to say the KFA2 cooler is by any means inefficient as it clearly is. Keeping an overclocked GF110 core well under 80c while under 100% load is a great achievement!
Let's move on to the acoustics and power consumption of today's review sample...
