In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 270X Crossfire are significantly better than the AMD FirePro D700.

The R9 270X has a 150 MHz higher core clock speed and 32 more Texture Mapping Units than the FirePro D700. This results in the R9 270X providing 51.2 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 R9 270X has a 150 MHz higher core clock speed and 32 more Render Output Units than the FirePro D700. This results in the R9 270X providing 36.8 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 FirePro D700 was released less than a year after the R9 270X, 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 R9 270X has 1024 MB more video memory than the FirePro D700, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 270X also has superior memory performance overall.

The R9 270X has 94.4 GB/sec greater memory bandwidth than the FirePro D700, which means that the memory performance of the R9 270X is massively better than the FirePro D700.

The FirePro D700 has 2048 Shader Processing Units and the Radeon R9 270X Crossfire has 2560. However, the actual shader performance of the FirePro D700 is 1132 and the actual shader performance of the R9 270X is 2285. The R9 270X having 1153 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 270X delivers a massively smoother and more efficient experience when processing graphical data than the FirePro D700.

The FirePro D700 requires 274 Watts to run and the Radeon R9 270X Crossfire requires 360 Watts. We would recommend a PSU with at least 500 Watts for the FirePro D700 and a PSU with at least 750 Watts for the R9 270X. The R9 270X requires 86 Watts more than the FirePro D700 to run. The difference is significant enough that the R9 270X may have an adverse affect on your yearly electricity bills in comparison to the FirePro D700.