While the MSI GTX570 Power Edition OC arrives pre-overclocked from the factory, I wanted to see just how much further the graphics card could be pushed just by using the bundled software.
As you can see, the stock settings of the card are 770MHz on the core with an effective 4000MHz memory speed resulting in a shader speed of 1540MHz.
Using MSI's own Afterburner tool (2.2.0 Beta 7), I maxed out all of the available voltages, Vcore (+150mV), Memory (+50mV) and Aux voltage (+30mV) to give us the freedom to push the graphics card as far as feasibly possible. To overclock the cards frequencies we again used Afterburner.
The maximum overclock I achieved was very good 962MHz on the core and 4224MHz on the memory. While I could get quite alot more on the memory with the core at stock speed, having both clocked up caused stability issues, I therefore opted to keep the core overclock and reduced to the memory overclock until stability was attained. The Core clock too would surpass the 980MHz mark which was a great acheievement but again, during testing this proved unstable under the most stressful conditions so I settled for the overclocks above and used these clockspeeds to assess the cards overclock capabilities compared to the stock values throughout our benchmark testing.
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.
Under idle conditions, the card sat at cool 36c. When placed under load the card still performed extremely well at stock speeds maxing out at a cool 72c. This is a a little warmer than the GTX570 from GIGABYTE but still a very good effort. The tables however were turned when the card was placed under the highest load with the MSI card beating its GIGABYTE competitor by a single degree. This however could be due to the faxct the GIGABYTE was running slightly higher clockspeeds so all things considered I would place the MSI and GIGABYTE coolers neck and neck as far as cooling performance goes.
Let's take a look at the accoustics and power consumption of the MSI GTX570 Twin Frozr III Power Edition OC...
As you can see, the stock settings of the card are 770MHz on the core with an effective 4000MHz memory speed resulting in a shader speed of 1540MHz.
Using MSI's own Afterburner tool (2.2.0 Beta 7), I maxed out all of the available voltages, Vcore (+150mV), Memory (+50mV) and Aux voltage (+30mV) to give us the freedom to push the graphics card as far as feasibly possible. To overclock the cards frequencies we again used Afterburner.
The maximum overclock I achieved was very good 962MHz on the core and 4224MHz on the memory. While I could get quite alot more on the memory with the core at stock speed, having both clocked up caused stability issues, I therefore opted to keep the core overclock and reduced to the memory overclock until stability was attained. The Core clock too would surpass the 980MHz mark which was a great acheievement but again, during testing this proved unstable under the most stressful conditions so I settled for the overclocks above and used these clockspeeds to assess the cards overclock capabilities compared to the stock values throughout our benchmark testing.
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.
Under idle conditions, the card sat at cool 36c. When placed under load the card still performed extremely well at stock speeds maxing out at a cool 72c. This is a a little warmer than the GTX570 from GIGABYTE but still a very good effort. The tables however were turned when the card was placed under the highest load with the MSI card beating its GIGABYTE competitor by a single degree. This however could be due to the faxct the GIGABYTE was running slightly higher clockspeeds so all things considered I would place the MSI and GIGABYTE coolers neck and neck as far as cooling performance goes.
Let's take a look at the accoustics and power consumption of the MSI GTX570 Twin Frozr III Power Edition OC...
