Radeon RX 6700 XT vs Radeon RX Vega 64

Intro

Compare that to the Radeon RX Vega 64, which features clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT		230 Watts
Radeon RX Vega 64		295 Watts
	Difference: 65 Watts (28%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 should be 26% quicker than the Radeon RX 6700 XT overall, due to its greater data rate. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 102195 (26%)

Texel Rate

The Radeon RX 6700 XT will be a little bit (more or less 16%) better at texture filtering than the Radeon RX Vega 64. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 52128 (16%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6700 XT is the winner, and very much so. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 68736 (86%)

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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.