In terms of overall gaming performance, the graphical capabilities of the AMD Radeon RX 480 4GB are significantly better than the AMD Radeon R9 370X.

The RX 480 has a 120 MHz higher core clock speed and 64 more Texture Mapping Units than the Radeon R9 370X. This results in the RX 480 providing 81.3 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The RX 480 has a 120 MHz higher core clock speed than the Radeon R9 370X and the same number of Render Output Units. This results in the RX 480 providing 3.8 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The RX 480 was released less than a year after the Radeon R9 370X, and so they are likely to have similar driver support for optimizing performance when running the latest games.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The RX 480 has 2048 MB more video memory than the Radeon R9 370X, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the RX 480 also has superior memory performance overall.

The RX 480 has 44.8 GB/sec greater memory bandwidth than the Radeon R9 370X, which means that the memory performance of the RX 480 is noticeably better than the Radeon R9 370X.

The Radeon RX 480 4GB has 2304 Shader Processing Units and the Radeon R9 370X has 1280. However, the actual shader performance of the RX 480 is 2917 and the actual shader performance of the Radeon R9 370X is 1142. The RX 480 having 1775 better shader performance and an altogether better performance when taking into account other relevant data means that the RX 480 delivers a massively smoother and more efficient experience when processing graphical data than the Radeon R9 370X.

The RX 480 transistor size technology is 14 nm (nanometers) smaller than the Radeon R9 370X. This means that the RX 480 is expected to run slightly cooler and achieve higher clock frequencies than the Radeon R9 370X.

The Radeon RX 480 4GB requires 120 Watts to run and the Radeon R9 370X requires 180 Watts. We would recommend a PSU with at least 450 Watts for the RX 480 and a PSU with at least 500 Watts for the Radeon R9 370X. The Radeon R9 370X requires 60 Watts more than the RX 480 to run. The difference is significant enough that the Radeon R9 370X may have an adverse affect on your yearly electricity bills in comparison to the RX 480.