As with all of our GPU cards, we like to push things to the maximum and to do this we use the latest version of MSI's great Afterburner utility.
The XFX R7770 builds on an already fast clockpeed of 1GHz so to increase that speed any further is a feat in iteself, however XFX have managed just that and added a further 12% to the core along with increasing the memory clockspeed to a quite frankly ridiculously fast 1300MHz(5200Mhz effective). With these speeds pre-configured I had my doubts that the card would overclock any higher - how wrong I was!
Throwing caution to the wind and increasing the voltage to the maximum available I managed to crank up the clockspeed to an extra-ordinary 1318MHz!!! I did go a little higher but started encountering lock-ups and instability so dropped it down to the clockspeed you see above which surprisingly was 100% stable throughout our suite of benchmarks.
Power Consumption
To test for power consumption we do not use anything to technical, just a wall meter which measures the total system power draw minus the monitor.
The XFX card was among the top performers in this category but due to it being a pre-overclocked graphics card, fell short of beating the reference design.
Temperature
To test temperatures we measured idle temperatures after booting windows, letting all applications finish loading and ran a few benchmarks. Once the benchmarks were complete we left the card to reach a cooling plateau where we then took the idle temperatures. For the load tests, we ran Furmark for 20 minutes, taking the absolute maximum temperature attained.
Thanks to the Double Dissipation cooler, the XFX graphics card ran very cool at both idle and load. Even the blistering overclock we achieved did not phase the cooling and even better, the fan speed hardly increased past audible levels such is the performance of the GHOST technology.
Let's move on to our suite of benchmarks...
The XFX R7770 builds on an already fast clockpeed of 1GHz so to increase that speed any further is a feat in iteself, however XFX have managed just that and added a further 12% to the core along with increasing the memory clockspeed to a quite frankly ridiculously fast 1300MHz(5200Mhz effective). With these speeds pre-configured I had my doubts that the card would overclock any higher - how wrong I was!
Throwing caution to the wind and increasing the voltage to the maximum available I managed to crank up the clockspeed to an extra-ordinary 1318MHz!!! I did go a little higher but started encountering lock-ups and instability so dropped it down to the clockspeed you see above which surprisingly was 100% stable throughout our suite of benchmarks.
Power Consumption
To test for power consumption we do not use anything to technical, just a wall meter which measures the total system power draw minus the monitor.
The XFX card was among the top performers in this category but due to it being a pre-overclocked graphics card, fell short of beating the reference design.
Temperature
To test temperatures we measured idle temperatures after booting windows, letting all applications finish loading and ran a few benchmarks. Once the benchmarks were complete we left the card to reach a cooling plateau where we then took the idle temperatures. For the load tests, we ran Furmark for 20 minutes, taking the absolute maximum temperature attained.
Thanks to the Double Dissipation cooler, the XFX graphics card ran very cool at both idle and load. Even the blistering overclock we achieved did not phase the cooling and even better, the fan speed hardly increased past audible levels such is the performance of the GHOST technology.
Let's move on to our suite of benchmarks...
