Radeon RX 6750 XT vs Radeon RX Vega 64

Intro

Compare those specs to the Radeon RX Vega 64, which has core clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs along with 256 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 6750 XT		250 Watts
Radeon RX Vega 64		295 Watts
	Difference: 45 Watts (18%)

Memory Bandwidth

In theory, the Radeon RX Vega 64 should be 12% quicker than the Radeon RX 6750 XT in general, because of its higher data rate. (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 (more or less 8%) faster with regards to 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

If using high levels of AA is important to you, then the Radeon RX 6750 XT is a better choice, by far. (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: Bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.