GeForce GTX 980 vs Radeon RX 6700 XT

Intro

Compare those specifications to the Radeon RX 6700 XT, which comes with a GPU core clock speed of 2321 MHz, and (Unknown) MB of GDDR6 memory running at 2000 MHz through a 192-bit bus. It also features 2560 Stream Processors, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 65 Watts (39%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT will be 76% quicker than the GeForce GTX 980 in general, because of its greater bandwidth. (explain)

Radeon RX 6700 XT		393216 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 169216 (76%)

Texel Rate

The Radeon RX 6700 XT should be quite a bit (approximately 158%) faster with regards to anisotropic filtering than the GeForce GTX 980. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 227232 (158%)

Pixel Rate

The Radeon RX 6700 XT will be much (about 106%) better at anti-aliasing than the GeForce GTX 980, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
GeForce GTX 980		72064 Mpixels/sec
	Difference: 76480 (106%)

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 MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 card could possibly write to its 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.