XFX HD6850 Dual Fan CFx review – ultimate gaming for £300 ?

To overclock the Sapphire cards, we used the Sapphire TRIXX overclocking software . We use this all the time and it is one of the best pieces of software available for AMD users.

The card overclocked well, from 775mhz  to 950mhz on the core which translates to a 22.5% overclock. The memory overclocked to 1170mhz from 1000mhz, giving a final effective figure of 4680mhz. Temperatures only rose by a few degrees celcius in the overclocked state.

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