GeForce GTX 970 vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which comes with GPU clock 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)

GeForce GTX 970		145 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 31 Watts (21%)

Memory Bandwidth

The Radeon RX 6650 XT, in theory, should perform much faster than the GeForce GTX 970 in general. (explain)

Radeon RX 6650 XT		287072 MB/sec
GeForce GTX 970		224000 MB/sec
	Difference: 63072 (28%)

Texel Rate

The Radeon RX 6650 XT will be quite a bit (more or less 141%) faster with regards to AF than the GeForce GTX 970. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
GeForce GTX 970		109200 Mtexels/sec
	Difference: 153840 (141%)

Pixel Rate

The Radeon RX 6650 XT is much (about 96%) more effective at anti-aliasing than the GeForce GTX 970, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
GeForce GTX 970		67200 Mpixels/sec
	Difference: 64320 (96%)

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 max amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If 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 texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.