Performance: video decoding
In all accelerators based on Polaris 10/20, the hardware multimedia unit is the same, and the speed ultimately depends entirely on the GPU clock speed. In general, AMD’s H.264 and H.265 decoding speed does not shine compared to what NVIDIA video cards are capable of, but it is quite sufficient for video playback in resolutions up to Ultra-HD with a refresh rate of 60 Hz.
Note: Since decoders usually do not differ within the same GPU line, the diagrams show one device from each family (or more if this rule is violated).
Performance: Computing
Most of the GP-GPU tasks in this price range are preferred by AMD accelerators. Only in the particle simulation test from the CompuBench CL package does NVIDIA GPUs have a clear advantage. It is noteworthy that it is in a number of computational tasks, and not in games, that the Radeon RX 570 has gone far ahead of the Radeon RX 470. GP-GPUs, as a rule, load shader ALUs most “densely”, and an additional 30 W of power allows maintaining the GPU frequency at a high level.
