Radeon HD 5970 vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which features a core clock frequency of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also makes use of a 128-bit bus, and makes use of a 7 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon HD 5970		294 Watts
	Difference: 118 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6650 XT should perform a little bit faster than the Radeon HD 5970 in general. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon HD 5970		256000 MB/sec
	Difference: 31072 (12%)

Texel Rate

The Radeon RX 6650 XT will be just a bit (more or less 13%) more effective at AF than the Radeon HD 5970. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon HD 5970		232000 Mtexels/sec
	Difference: 31040 (13%)

Pixel Rate

The Radeon RX 6650 XT should be quite a bit (more or less 42%) better at anti-aliasing than the Radeon HD 5970, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon HD 5970		92800 Mpixels/sec
	Difference: 38720 (42%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics card could possibly write to its local memory per 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.