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Intro

The Core i7-7700K is the most high-end seventh-generation Core i CPUs from Intel, based on the Kaby Lake architecture, with four cores, Hyper-Threading, and 4.5 GHz maximum clock. Let’s test it and check how faster than other models from the same generation it is.

Recently, Intel launched the seventh generation Core i processors, codenamed Kaby Lake. At first, were launched the Core i7 and Core i5 CPUs, and soon after, the Core i3, Pentium, and Celeron models. Those processors bring small changes compared to the sixth-generation ones: new video decoder for 4K video, improved Speed Shift technology (that dynamically adjusts the CPU clock,) and support to Optane technology (which is a future kind of high performance SSDs.)

The Core i7-7700K is, until now, the most high-end model among the seventh-generation Core i7 models. There are other models, like the Core i7-7700 (4.2 GHz maximum clock, TDP of 65 W, and locked clock multiplier) and the Core i7-7700T (low consumption model, with 3.8 GHz maximum clock TDP of 35 W and also with locked multiplier).

The Core i7-7700K has four cores (with eight threads thanks to the Hyper-Threading technology), base clock of 4.2 GHz, maximum clock of 4.5 GHz, 8 MiB of L3 cache and TDP of 91 W. It has an unlocked clock multiplier, which means you can overclock it just by setting a higher clock multiplier, if your motherboard support this feature.

We compared the Core i7-7700K to two other Kaby Lake models: the Core i7-7600K and the Core i3-7100, so you can have an ideia what is the performance difference between CPUs with different price tags.

Figure 1 unveils the Core i7-7700K CPU. It does not come with a cooler.

Core i7-7700K ReviewFigure 1: the Core i7-7700K CPU

Figure 2 shows the bottom of the CPU.

Core i7-7700K ReviewFigure 2: underside of the Core i7-7700K

In our benchmarks, we used the integrated video for the processing tests. However, for the gaming benchmarks, we disabled the integrated video and used a GeForce GTX 1080 video card on both CPUs, in order to see how the CPU power impact games, not the iGPU.

Let’s compare the main specs of the reviewed CPUs in the next page.