Testing was done with the following test setup:
Testing was done with the following software:
Temperatures were taken at a ambient temperature of 20 Celsius and power usage numbers were taken with watt measuring equipment.
We used the mid end card from Sapphire that we reviewed earlier to compare versus, this will give you an idea on how big of a performance difference these cards have.
The GTX670 gives three times the performance but the card also cost three times more so far so good.