GeForce GTX 980 vs Radeon RX 7900 XT

Intro

Compare all of that to the Radeon RX 7900 XT, which has a clock speed of 1500 MHz and a GDDR6 memory frequency of 2500 MHz. It also makes use of a 320-bit memory bus, and makes use of a 5 nm design. It features 5376 SPUs, 336 Texture Address Units, and 192 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 135 Watts (82%)

Memory Bandwidth

Theoretically, the Radeon RX 7900 XT should be quite a bit faster than the GeForce GTX 980 in general. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 595200 (266%)

Texel Rate

The Radeon RX 7900 XT is much (about 250%) faster with regards to texture filtering than the GeForce GTX 980. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 359872 (250%)

Pixel Rate

The Radeon RX 7900 XT will be much (approximately 300%) more effective at full screen anti-aliasing than the GeForce GTX 980, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce GTX 980		72064 Mpixels/sec
	Difference: 215936 (300%)

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 data (in units of MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 calculated by multiplying the total texture units of the card by the core clock 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 the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.