Radeon RX 6750 XT vs Radeon RX Vega 64

Intro

Compare those specs to the Radeon RX Vega 64, which comes with a clock frequency of 1247 MHz and a HBM2 memory frequency of 1890 MHz. It also features a 2048-bit memory bus, and makes use of a 14 nm design. It is made up of 4096 SPUs, 256 Texture Address Units, and 64 Raster Operation Units.

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

Performance-wise, the Radeon RX Vega 64 should theoretically be a bit superior to 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 will be a little bit (approximately 8%) better at AF 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 should be much (approximately 72%) better at anti-aliasing than the Radeon RX Vega 64, and also should be able to handle higher resolutions better. (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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.