Geforce GTX 780 vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 2055 MHz. The GDDR6 memory works at a speed of 2190 MHz on this particular model. It features 2048 SPUs as well as 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
Geforce GTX 780		250 Watts
	Difference: 74 Watts (42%)

Memory Bandwidth

In theory, the Geforce GTX 780 should be 0% quicker than the Radeon RX 6650 XT in general, due to its higher bandwidth. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 1312 (0%)

Texel Rate

The Radeon RX 6650 XT is a lot (about 59%) better at anisotropic filtering than the Geforce GTX 780. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 97344 (59%)

Pixel Rate

The Radeon RX 6650 XT will be much (more or less 217%) better at anti-aliasing than the Geforce GTX 780, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 90096 (217%)

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: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.