All changes to the settings of the CPU were done on the BIOS. We were able to boot into Windows on 4.2GHz, but the system was unstable, and would not complete the benchmark. Of course, the increase of improvement is still largely due to the CPU’s clock speed, and not the increase of DRAM frequency. This allows us to increase our DRAM speed from 2933MHz to 2986MHz instead. This is also why an overclock on the Ryzen 7 1800X will see an huge improvement in the Cinebench R15 test.ĭo note that we instead of the 41x multiplier on a 100.6 reference clock, we dropped the multipler to 40.5x and increased the reference clock to 101.8. Of course, in such a benchmark that utilizes all the threads on the CPU, an increase in clock speed will increase performance by the product of the number of cores and threads on the CPU. In our Cinebench R15 test, we managed to squeeze out an additional 178cb points. However, since all the different CPU cores are running at such a speed, performance on multi threaded applications were extremely significant. It is a small increase as compared to the stock XFR boost clock speed that is determined by AMD.
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