Difference between revisions of "Overclocking"
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(Add ROCK64 section for those who seek adventure) |
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When overclocking the GPU, it is a good idea to also overclock the DRAM, as the main bottleneck of the A64 SOC is the memory. The A64's maximum ram clockspeed falls just short of 667MHz. This may be unstable on your device however. | When overclocking the GPU, it is a good idea to also overclock the DRAM, as the main bottleneck of the A64 SOC is the memory. The A64's maximum ram clockspeed falls just short of 667MHz. This may be unstable on your device however. | ||
Around 600 MHz (PC-1200) should work fine, however some people have reported instability at lower clockspeeds. Arch Linux Arm uses a default clockspeed of | Around 600 MHz (PC-1200) should work fine, however some people have reported instability at lower clockspeeds. Arch Linux Arm uses a default clockspeed of 552MHz, with uboot builds available to easily switch out for a higher (624) or lower (492) DRAM clockspeed. | ||
It is possible that by reverse engineering the DRAM driver from allwinner that auto tuning can be accomplished to get the best performance. | It is possible that by reverse engineering the DRAM driver from allwinner that auto tuning can be accomplished to get the best performance. | ||