Ryzen features a bunch of new sensing and adaptive prediction technologies known as SenseMi. The core of this is a trio of features – pure power, precision Boost, and Extended Frequency range (XFr) – built into the hardware itself that are able to continuously adjust the chip’s clock speed, voltage, and temperature to reduce power consumption and maximize performance.
Sensors at the chip level enable constant monitoring and adjustments, so while pure power enables more efficient power delivery, Precision Boost allows granular 25MHz increments in frequency, and XFr will boost clock speeds beyond the official range if the cooling solution allows.
For the Ryzen 7 1800X, XFr is a modest 100MHz boost to 4.1GHz from its 3.6GHz base clock, but it’s worth noting that the feature is only enabled on ryzen “X” chips. it also only works across two cores at once, and not all eight, so the difference will be most apparent in single-threaded tasks.
In the multi-threaded Cinebench R15 benchmark, the Core i7-6950X was only 14 per cent faster than the Ryzen 7 1800X, and it retails for well over S$2,000 compared to the latter’s S$818. It was also a whopping 63 per cent faster than the quad-core Core i7-7700K (4.2GHz, 8MB L3 cache), so AMD is standing toe-totoe with Intel’s Broadwell-E chips.
However, this means that applications need to be able to fully utilize all eight cores and all those nifty hardware features in order for the chip to demonstrate its full prowess. When it comes to games, which often benefit far more from higher clock speeds rather than more cores, the Core i7- 7700K still takes the lead.
Ryzen Master is a dedicated tool for monitoring and overclocking the chip.
This is especially apparent when gaming at 1080p, where the CPU and not the GPU is often the bottleneck. Of course, this will depend on how much the game actually relies on the CPU. For instance, Ashes of the Singularity clearly taxes the CPU more, and the Core i7-7700K was up to 50 per cent quicker at 1080p and High settings. On the other hand, a more intensive, GPU-focused game like Deus Ex: Mankind Divided saw the performance differential narrow to just a handful of frames.