Radeon RX 6700 XT vs Radeon RX Vega 56

Intro

Compare those specifications to the Radeon RX Vega 56, which has clock speeds of 1156 MHz on the GPU, and 1600 MHz on the 8192 MB of HBM2 RAM. It features 3584 SPUs along with 224 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 20 Watts (10%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 should be 7% faster than the Radeon RX 6700 XT overall, because of its higher data rate. (explain)

Radeon RX Vega 56		419430 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 26214 (7%)

Texel Rate

The Radeon RX 6700 XT will be a lot (approximately 43%) better at texture filtering than the Radeon RX Vega 56. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 112416 (43%)

Pixel Rate

The Radeon RX 6700 XT will be a lot (approximately 101%) better at FSAA than the Radeon RX Vega 56, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 74560 (101%)

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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number 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 filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.