
The last number in the series represents the revision number. The next digit corresponds to the performance tier with the higher numbers representing higher performance levels. The number directly after represents the generation (the higher the number, the newer the generation). However, for the 400 series, the current generation, AMD has ditched the M designation and labeled every chip in the lineup RX regardless of performance capability. The "M" placed before the second batch of numbers represents mobility and designates that the chip is for mobile devices, such as laptops and tablets. R5 and R3 refer to the company's entry-level chips.


For instance, the R9 suffix represents AMD's high-performance line, while R7 is more midtier. AMD GPUs typically carry the Radeon moniker followed by a prefix, which designates the chip's performance.
