GeForce 8800 GTS (G80) 640MB vs Radeon RX 7900 XT

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 640MB		143 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 157 Watts (110%)

Memory Bandwidth

As far as performance goes, the Radeon RX 7900 XT should theoretically be a lot superior to the GeForce 8800 GTS (G80) 640MB in general. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 755840 (1193%)

Texel Rate

The Radeon RX 7900 XT should be much (about 1947%) more effective at anisotropic filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 479376 (1947%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 7900 XT is the winner, and very much so. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 277740 (2707%)

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 a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of 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 this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.