Radeon RX 470 vs Radeon RX 7900 XT

Intro

Compare all of that to the Radeon RX 7900 XT, which has core clock speeds of 1500 MHz on the GPU, and 2500 MHz on the 20480 MB of GDDR6 RAM. It features 5376 SPUs along with 336 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 180 Watts (150%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT will be 288% quicker than the Radeon RX 470 in general, due to its greater data rate. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 470		211200 MB/sec
	Difference: 608000 (288%)

Texel Rate

The Radeon RX 7900 XT is much (more or less 325%) more effective at AF than the Radeon RX 470. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon RX 470		118528 Mtexels/sec
	Difference: 385472 (325%)

Pixel Rate

The Radeon RX 7900 XT is much (more or less 872%) faster with regards to AA than the Radeon RX 470, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 470		29632 Mpixels/sec
	Difference: 258368 (872%)

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 information (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 in one second. This figure is calculated by multiplying the total amount 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.