Radeon R9 280X vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which features GPU core speed of 2055 MHz, and 8192 MB of GDDR6 memory running at 2190 MHz through a 128-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon R9 280X		250 Watts
	Difference: 74 Watts (42%)

Memory Bandwidth

Performance-wise, the Radeon R9 280X should in theory be a bit superior to the Radeon RX 6650 XT in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 928 (0%)

Texel Rate

The Radeon RX 6650 XT should be a lot (more or less 142%) faster with regards to texture filtering than the Radeon R9 280X. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 154240 (142%)

Pixel Rate

The Radeon RX 6650 XT should be quite a bit (about 384%) faster with regards to AA than the Radeon R9 280X, and able to handle higher resolutions better. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 104320 (384%)

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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, 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 the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.