GeForce GTX 980 vs Radeon RX 6600

Intro

Compare those specs to the Radeon RX 6600, which comes with a core clock frequency of 1626 MHz and a GDDR6 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 7 nm design. It features 1792 SPUs, 112 TAUs, and 64 ROPs.

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

In theory, the Radeon RX 6600 will be 2% faster than the GeForce GTX 980 in general, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX 6600 is quite a bit (approximately 26%) better at texture filtering than the GeForce GTX 980. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6600 is superior to the GeForce GTX 980, by far. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core clock 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 the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.