In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce RTX 2080 Gainward Blower 8GB are massively better than the AMD Radeon RX 5300.

The RTX 2080 has a 515 MHz higher core clock speed and 96 more Texture Mapping Units than the Radeon RX 5300. This results in the RTX 2080 providing 190.8 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 RTX 2080 has a 515 MHz higher core clock speed and 32 more Render Output Units than the Radeon RX 5300. This results in the RTX 2080 providing 65 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 Radeon RX 5300 was released over a year more recently than the RTX 2080, and so the Radeon RX 5300 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the RTX 2080.

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 RTX 2080 has 5120 MB more video memory than the Radeon RX 5300, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the RTX 2080 also has superior memory performance overall.

The RTX 2080 has 280 GB/sec greater memory bandwidth than the Radeon RX 5300, which means that the memory performance of the RTX 2080 is massively better than the Radeon RX 5300.

The Radeon RX 5300 has 1536 Shader Processing Units and the GeForce RTX 2080 Gainward Blower 8GB has 2944. However, the actual shader performance of the Radeon RX 5300 is 1897 and the actual shader performance of the RTX 2080 is 5034. The RTX 2080 having 3137 better shader performance and an altogether better performance when taking into account other relevant data means that the RTX 2080 delivers a massively smoother and more efficient experience when processing graphical data than the Radeon RX 5300.

The Radeon RX 5300 transistor size technology is 5 nm (nanometers) smaller than the RTX 2080. This means that the Radeon RX 5300 is expected to run very slightly cooler and achieve higher clock frequencies than the RTX 2080.

The Radeon RX 5300 requires 85 Watts to run and the GeForce RTX 2080 Gainward Blower 8GB requires 215 Watts. We would recommend a PSU with at least 450 Watts for the Radeon RX 5300 and a PSU with at least 650 Watts for the RTX 2080. The RTX 2080 requires 130 Watts more than the Radeon RX 5300 to run. The difference is significant enough that the RTX 2080 may have an adverse affect on your yearly electricity bills in comparison to the Radeon RX 5300.