Sapphire R9 300 SeriesOverclocking Results

Overclocking on all three of Sapphire's graphics cards was rather limited in terms of overall frequency gains on the GPU core, but memory overclocking fared substantially better. The Sapphire R9 380 Nitro managed to reach 1,078MHz core and 1,600MHz memory, a 9.4 and 10.3 per cent boost over base speeds of 985MHz and 1,450MHz.

The Sapphire R9 390 Nitro was capable of 1,095MHz core and 1,710MHz memory which translates into a 8.4 and 14 per cent boost over stock frequencies of 1,010MHz and 1,500MHz. Finally, the Sapphire R9 390X Tri-X topped out at 1,115MHz core and 1,725MHz memory, those gains equate to a 5.6 and 15 per cent boost in core and memory frequencies, respectively.

All three R9 300 series parts are effectively R9 200 series GPUs with higher frequencies and, as such, there is less gain to be had from overclocking since the GPUs start from a higher base clock but the maximum capable frequency of the silicon hasn't changed. The R9 390X, R9 390 and R9 380 top out in the same clock speed regions as their predecessors so there are no surprises to be found here.