Radeon RX 5700 XT vs Radeon RX Vega 56

Intro

Compare all that to the Radeon RX Vega 56, which features GPU clock speed of 1156 MHz, and 8192 MB of HBM2 RAM running at 1600 MHz through a 2048-bit bus. It also is made up of 3584 SPUs, 224 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 15 Watts (7%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5700 XT should perform a little bit faster than the Radeon RX Vega 56 overall. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 39322 (9%)

Texel Rate

The Radeon RX Vega 56 is a small bit (approximately 1%) faster with regards to texture filtering than the Radeon RX 5700 XT. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon RX 5700 XT		256800 Mtexels/sec
	Difference: 2144 (1%)

Pixel Rate

The Radeon RX 5700 XT should be much (approximately 39%) better at full screen anti-aliasing than the Radeon RX Vega 56, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 28736 (39%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.