Radeon RX 6750 XT vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which features core 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 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6750 XT		250 Watts
Radeon RX Vega 64		295 Watts
	Difference: 45 Watts (18%)

Memory Bandwidth

The Radeon RX Vega 64, in theory, should be just a bit faster than the Radeon RX 6750 XT overall. (explain)

Radeon RX Vega 64		495411 MB/sec
Radeon RX 6750 XT		442368 MB/sec
	Difference: 53043 (12%)

Texel Rate

The Radeon RX 6750 XT is a bit (about 8%) more effective at anisotropic filtering than the Radeon RX Vega 64. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 24768 (8%)

Pixel Rate

The Radeon RX 6750 XT is a lot (about 72%) better at FSAA than the Radeon RX Vega 64, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 57792 (72%)

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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range 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 number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at 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 the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.