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Stefan Mileschin 3rd September 2012 07:25

Sapphire Radeon HD 7750 Low Profile Review @ OCC
The limits for the board within TriXX are +50% on the power limit (which is quite high) and 1225 mV for the core voltage (which is well within reason). I cranked both sliders to the maximum values before starting my hunt for the highest core and memory frequencies. Because this card starts out with "low" frequencies I immediately started bumping up the clocks in quite large increments. After a few iterations of testing and tuning I ended up with an overclock of 440MHz on the core (+55%) and 315MHz on the memory (+28%). This is an absolutely massive overclock! The temperatures, as you'll see later, leave a bit to be desired but aren't terribly unreasonable for such a tiny card (though you'd likely want a larger cooler if you ran these clocks 24/7).

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