In terms of overall gaming performance, the graphical capabilities of the AMD Radeon RX 480X 8GB are massively better than the AMD Radeon R9 370X.

The RX 480X has a 250 MHz higher core clock speed and 48 more Texture Mapping Units than the Radeon R9 370X. This results in the RX 480X providing 80 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 480X has a 250 MHz higher core clock speed and 32 more Render Output Units than the Radeon R9 370X. This results in the RX 480X providing 48 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 480X was released over a year more recently than the Radeon R9 370X, and so the RX 480X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Radeon R9 370X.

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 480X has 6144 MB more video memory than the Radeon R9 370X, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the Radeon R9 370X has superior memory performance.

The Radeon R9 370X has 179.2 GB/sec greater memory bandwidth than the RX 480X, which means that the memory performance of the Radeon R9 370X is massively better than the RX 480X.

The Radeon RX 480X 8GB has 2048 Shader Processing Units and the Radeon R9 370X has 1280. However, the actual shader performance of the RX 480X is 2560 and the actual shader performance of the Radeon R9 370X is 1142. The RX 480X having 1418 better shader performance and an altogether better performance when taking into account other relevant data means that the RX 480X delivers a noticeably smoother and more efficient experience when processing graphical data than the Radeon R9 370X.

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

The Radeon RX 480X 8GB requires 150 Watts to run and the Radeon R9 370X requires 180 Watts. We would recommend a PSU with at least 500 Watts for the RX 480X and a PSU with at least 500 Watts for the Radeon R9 370X. The Radeon R9 370X requires 30 Watts more than the RX 480X to run. The difference is not significant enough for the Radeon R9 370X to have a noticeably larger impact on your yearly electricity bills than the RX 480X.