PowerColor Radeon HD 7790 TurboDuo OC 1GB Review
Chris Hadley / 12 years ago
Moving over to the overclocking stage of this review, its time to turn up the clocks an see how far this card will go. Temperature and noise are limitless factors here and its raw performance that is scrutinised. As with any other card, MSI’s AfterBurner suite is my preferred weapon of choice.
Starting off with the core clock speed, its known that the Bonaire Core can easily clock in the region of 1240-1270MHz with relative ease and anything ever this is generally down to individual boards and their components as the deciding factor of a better clock. In this instance, the board was able to hit a core clock of 1275MHz on its own, however any adjustment to the memory clock after this resulted in an unstable card. Dropping the core clock back to 1265MHz resulted in a stable platform to work on and the memory was upped to 1700MHz.
Whilst I have seen higher clocks achieved, a core increase of 190MHz and a memory increase of 200MHz is not a bad platform to work upon.
From a stock 3DMark11 score of X1625 and the additional overclock on the PowerColor seeing a healthy gain of 17% extra on the core and 13% on the memory speeds, the translated gain of X1874 works out as a 15.3% performance gain. Considering the modest overclock that was seen, the percentage gains are very well balanced and overall I’m satisfied with the results.
