In terms of overall gaming performance, the graphical capabilities of the AMD Radeon RX 480X 4GB are significantly better than the Nvidia GeForce GTX 770 Zotac AMP! Edition.

The RX 480X and the GTX 770 have the same core clock speed of 1150 MHz, but the RX 480X has 128 more Texture Mapping Units than the GTX 770. As a result, the RX 480X exhibits a 147.2 GTexel/s better Texture Fill Rate than the GTX 770. 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 and the GTX 770 have the same core clock speed of 1150 MHz, but the RX 480X has 96 more Render Output Units than the GTX 770. As a result, the RX 480X exhibits a 110.4 GPixel/s better Pixel Fill Rate than the GTX 770. 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 three years more recently than the GTX 770, and so the RX 480X is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GTX 770 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 480X has 2048 MB more video memory than the GTX 770, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the GTX 770 has superior memory performance.

The GTX 770 has 230.4 GB/sec greater memory bandwidth than the RX 480X, which means that the memory performance of the GTX 770 is massively better than the RX 480X.

The Radeon RX 480X 4GB has 4096 Shader Processing Units and the GeForce GTX 770 Zotac AMP! Edition has 1536. However, the actual shader performance of the RX 480X is 5325 and the actual shader performance of the GTX 770 is 1846. The RX 480X having 3479 better shader performance and an altogether better performance when taking into account other relevant data means that the RX 480X delivers a slightly smoother and more efficient experience when processing graphical data than the GTX 770.

The RX 480X transistor size technology is 14 nm (nanometers) smaller than the GTX 770. This means that the RX 480X is expected to run slightly cooler and achieve higher clock frequencies than the GTX 770.

The Radeon RX 480X 4GB requires 175 Watts to run but there is no entry for the GeForce GTX 770 Zotac AMP! Edition. We would recommend a PSU with at least 500 Watts for the RX 480X and a PSU with at least 600 Watts for the GTX 770. The GTX 770 has been recommended a PSU with 100 Watts more than the RX 480X. The difference is significant enough that the GTX 770 may have an adverse affect on your yearly electricity bills in comparison to the RX 480X.