Radeon RX 550 vs Radeon RX 7900 XTX

Intro

Compare those specs to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has clocked the core frequency at 1855 MHz. The GDDR6 memory is set to run at a frequency of 2500 MHz on this model. It features 6144 SPUs along with 384 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 305 Watts (610%)

Memory Bandwidth

Performance-wise, the Radeon RX 7900 XTX should in theory be much better than the Radeon RX 550 overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 868352 (757%)

Texel Rate

The Radeon RX 7900 XTX is quite a bit (about 1924%) better at texture filtering than the Radeon RX 550. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 677120 (1924%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 7900 XTX is superior to the Radeon RX 550, by a large margin. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 338560 (1924%)

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 maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.