Dell XPS 13 9300 Core i7 Laptop Review: New Chassis Design is More Exciting than the New CPU

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We stress the system with synthetic loads to identify for any potential throttling or stability issues. When running Prime95, the CPU would boost up to 3.5 GHz for the first 10 seconds or so until hitting a core temperature of 99 C. Thereafter, clock rates and temperature would immediately drop and stabilize at 3.0 GHz and ~96 C, respectively. After just a few minutes, however, clock rates and temperature will begin cycling from 1.8 GHz to 3.3 GHz and 70 C to 97 C, respectively, as shown by our screenshots below. This behavior ensures that core temperature will not run remain at >95 C at the cost of consistent clock rates. While the processor will not throttle below its base clock rate when running Prime95, it’s unable to maintain a fixed Turbo Boost clock rate for extended periods, either.

Running Witcher 3 is more representative of stressful real-world loads. When under such conditions, GPU clock rates will cycle between 750 and 1000 MHz which, unfortunately, leads to the cycling frame rates that we described above.

Running on battery will impact performance. A 3DMark 11 test on batteries returns Physics and Graphics scores of 4680 and 1675 points, respectively, compared to 10249 and 4508 points when on mains.

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