Radeon RX 480 4GB vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which has clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 26 Watts (17%)

Memory Bandwidth

In theory, the Radeon RX 6650 XT will be 25% quicker than the Radeon RX 480 4GB overall, because of its greater bandwidth. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 480 4GB		229376 MB/sec
	Difference: 57696 (25%)

Texel Rate

The Radeon RX 6650 XT is quite a bit (about 63%) better at texture filtering than the Radeon RX 480 4GB. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 480 4GB		161280 Mtexels/sec
	Difference: 101760 (63%)

Pixel Rate

The Radeon RX 6650 XT is a lot (approximately 267%) faster with regards to anti-aliasing than the Radeon RX 480 4GB, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 480 4GB		35840 Mpixels/sec
	Difference: 95680 (267%)

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 (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.