GeForce RTX 3090 vs Radeon RX 6750 XT

Intro

Compare those specs to the Radeon RX 6750 XT, which features core clock speeds of 2150 MHz on the GPU, and 2250 MHz on the 12288 MB of GDDR6 RAM. It features 2560 SPUs as well as 160 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
GeForce RTX 3090		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3090 should in theory be a lot better than the Radeon RX 6750 XT overall. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon RX 6750 XT		442368 MB/sec
	Difference: 516300 (117%)

Texel Rate

The GeForce RTX 3090 will be quite a bit (approximately 33%) better at anisotropic filtering than the Radeon RX 6750 XT. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon RX 6750 XT		344000 Mtexels/sec
	Difference: 113560 (33%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3090 is superior to the Radeon RX 6750 XT, but not by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon RX 6750 XT		137600 Mpixels/sec
	Difference: 18640 (14%)

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 maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at 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 chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.