GeForce GTX 980 vs Radeon RX 6600

Intro

Compare all of that to the Radeon RX 6600, which has core clock speeds of 1626 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 1792 SPUs along with 112 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
GeForce GTX 980		165 Watts
	Difference: 33 Watts (25%)

Memory Bandwidth

The Radeon RX 6600 should in theory perform a bit faster than the GeForce GTX 980 overall. (explain)

Radeon RX 6600		229376 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 5376 (2%)

Texel Rate

The Radeon RX 6600 is much (about 26%) more effective at anisotropic filtering than the GeForce GTX 980. (explain)

Radeon RX 6600		182112 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 37984 (26%)

Pixel Rate

The Radeon RX 6600 will be a lot (approximately 44%) more effective at FSAA than the GeForce GTX 980, and also capable of handling higher screen resolutions better. (explain)

Radeon RX 6600		104064 Mpixels/sec
GeForce GTX 980		72064 Mpixels/sec
	Difference: 32000 (44%)

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 (in units of MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.