Radeon HD 4550 512MB vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which features GPU core speed of 1825 MHz, and 16384 MB of GDDR6 RAM set to run at 2000 MHz through a 256-bit bus. It also features 5120 Stream Processors, 320 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 275 Watts (1100%)

Memory Bandwidth

The Radeon RX 6900 XT, in theory, should perform much faster than the Radeon HD 4550 512MB overall. (explain)

Radeon RX 6900 XT		524288 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 511488 (3996%)

Texel Rate

The Radeon RX 6900 XT is a lot (more or less 12067%) better at texture filtering than the Radeon HD 4550 512MB. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 579200 (12067%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6900 XT is the winner, by a large margin. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 231200 (9633%)

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 across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends 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.