Radeon RX 6750 XT vs Radeon RX Vega 64

Intro

Compare those specifications to the Radeon RX Vega 64, which features core clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 RAM. 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

Theoretically speaking, the Radeon RX Vega 64 should be a bit faster than the Radeon RX 6750 XT in general. (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 quite a bit (approximately 72%) faster with regards to FSAA than the Radeon RX Vega 64, and will be capable of handling higher resolutions more effectively. (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 (counted in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 figure is calculated by multiplying the total number of texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the 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 core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.