Clock frequencies, power consumption, temperature, overclocking
In Crysis 3 and other SAPPHIRE Pulse ITX gaming tests, the Radeon RX 570 stably supports the maximum GPU frequency of 1244 MHz, and the supply voltage reaches 1.075 V. For comparison: Radeon RX 470 by SAPPHIRE , which we tested last year, even at reference frequencies (up to 1206 MHz) requires a slightly higher voltage – 1.0938 V.
The cooling fan rotates under load at up to 1,727 rpm, with an average of 1,481 rpm. At the same time, despite the compactness of the radiator, the video card is cooled no worse than other test participants.
Contrary to the passport data, in terms of power consumption in games and FurMark, the device differs for the better from SAPPHIRE NITRO + Radeon RX 470, despite the fact that we tested the latter with reference frequencies and a power consumption limit of 120 W, stitched into the backup BIOS chip. In comparison with NVIDIA accelerators, the novelty is located in the gap between the two versions of the GeForce GTX 1060 with 3 and 6 GB of RAM.
Among the overclocking tools in the SAPPHIRE Pulse ITX Radeon RX 570, it is possible to raise the power limit by 50% and the maximum GPU voltage by 0.2 V. However, as in the case of the Radeon RX 470 models, which have a single six-pin auxiliary power connector, with If the clock frequency is seriously increased, it is better not to touch the voltage slider. Otherwise, the video card will only “throttle” more often – dropping the GPU frequency below the maximum.
We managed to overclock the graphics processor up to 1444 MHz, and the accelerator supported this bar stably, and the memory chips – up to 8 GHz effective frequency. The GPU power voltage automatically increased to 1.2 V. It would seem that the Radeon RX 470 version of SAPPHIRE NITRO + overclocks better (up to 1460 MHz), but let’s look at the details: the real GPU frequency of the overclocked RX 470 fluctuates in the range of 1417-1425 MHz, and the voltage much higher is required – up to 1.3 V.
The SAPPHIRE card allows you to increase the fan speed up to 3711 rpm. Of course, this is incompatible with a comfortable noise level, but the GPU temperature in gaming tests dropped by 12 ° C, despite the increased frequencies. As a result of overclocking, the power of the computer increased by 26 watts. Only now the Radeon RX 570 has caught up with the power consumption of the Radeon RX 470 and RX 480 accelerators operating at reference frequencies!
