Radeon RX 470 4GB vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which comes with GPU core speed of 1500 MHz, and 20480 MB of GDDR6 memory set to run at 2500 MHz through a 320-bit bus. It also is made up of 5376 Stream Processors, 336 TAUs, and 192 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 180 Watts (150%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT is 288% quicker than the Radeon RX 470 4GB in general, because of its greater data rate. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 608000 (288%)

Texel Rate

The Radeon RX 7900 XT is a lot (approximately 325%) more effective at anisotropic filtering than the Radeon RX 470 4GB. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 385472 (325%)

Pixel Rate

The Radeon RX 7900 XT will be a lot (about 872%) better at AA than the Radeon RX 470 4GB, and also should be able to handle higher screen resolutions better. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 470 4GB		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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.