To overclock today we are using AMD’s Catalyst Control Centre. The HD6990 is set to performance/’OC’ mode. It is also worth pointing out that overclocking these cards past 880mhz will require some serious case airflow and cooling. We used an open bed for our overclocking testing.
It seems our first sample from AMD is an unusual example of the HD6990, as neither of our HIS cards were artifact free past 920mhz. Memory limitations were similar to the reference card, peaking around 1425mhz.
Tags AMD HD6990 Crossfire X Review AMD HD6990 Dual CrossfireX AMD HD6990 Quad Crossfire AMD HD6990 Quadfire review ATI HD 6990 ATI HD5870 ATI HD6990 HD 6990 HD 6990 crossfire HD 6990 CrossfireX HD 6990 review HD6990 HIS HD6990 HIS HD6990 crossfirex HIS HD6990 CrossfireX Review HIS HD6990 Dual CrossfireX Review news Review
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