Radeon RX 6750 XT vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which makes use of a 5 nm design. AMD has set the core speed at 1500 MHz. The GDDR6 RAM is set to run at a speed of 2500 MHz on this model. It features 5376 SPUs as well as 336 TAUs and 192 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 7900 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT should be 85% quicker than the Radeon RX 6750 XT in general, due to its greater data rate. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 6750 XT		442368 MB/sec
	Difference: 376832 (85%)

Texel Rate

The Radeon RX 7900 XT is quite a bit (more or less 47%) faster with regards to texture filtering than the Radeon RX 6750 XT. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon RX 6750 XT		344000 Mtexels/sec
	Difference: 160000 (47%)

Pixel Rate

The Radeon RX 7900 XT will be a lot (approximately 109%) better at anti-aliasing than the Radeon RX 6750 XT, and also will be able to handle higher resolutions more effectively. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 6750 XT		137600 Mpixels/sec
	Difference: 150400 (109%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.