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The Core i7-6700K was an overclocking delight, reaching 4.8GHz with no effort at all. To achieve this frequency we simply hit the quick OC button and selected the maximum value of 4.8GHz. The system reset, loaded Windows 10 and we began testing. Keep in mind the ambient room temperature was just 21 degrees and we were using the Noctua NH-D15.
Under full load the 4.8GHz overclock did see the CPU reach 90 degrees though it remained stable. Here are some quick results. Unfortunately we didn't have a heap of time to really mess around with overclocking the 6700K.
The L2 cache performance was boosted by 22% thanks to the overclock while the L3 cache only enjoyed a 7% performance bump.
The Cinebench R15 multi-threaded score was increased by 18% thanks to the 4.8GHz overclock.
Here we see the overclock delivered an 18% performance increase reducing the workload completion time from 3.5 seconds to just 3 seconds.
The Core i7-6700K enjoyed a 19% performance increase in 7-Zip once overclocked with a total of 29963 MIPS.
We saw a 16% performance jump when testing with x264 HD Benchmark.