Radeon RX 6600 XT vs Radeon RX Vega 56

Intro

Compare that to the Radeon RX Vega 56, which uses a 14 nm design. AMD has set the core frequency at 1156 MHz. The HBM2 RAM runs at a frequency of 1600 MHz on this particular card. It features 3584 SPUs along with 224 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
Radeon RX Vega 56		210 Watts
	Difference: 50 Watts (31%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 should perform quite a bit faster than the Radeon RX 6600 XT overall. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 157286 (60%)

Texel Rate

The Radeon RX Vega 56 should be a small bit (more or less 3%) more effective at anisotropic filtering than the Radeon RX 6600 XT. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 7040 (3%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6600 XT is a better choice, by far. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 51968 (70%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.