GeForce 8800 GT 512MB vs Radeon RX 7900 XT

Intro

Compare those specs to the Radeon RX 7900 XT, which features a core clock speed of 1500 MHz and a GDDR6 memory frequency of 2500 MHz. It also uses a 320-bit memory bus, and uses a 5 nm design. It is made up of 5376 SPUs, 336 Texture Address Units, and 192 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 195 Watts (186%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT will be 1322% quicker than the GeForce 8800 GT 512MB in general, due to its greater bandwidth. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 761600 (1322%)

Texel Rate

The Radeon RX 7900 XT should be quite a bit (about 1400%) more effective at anisotropic filtering than the GeForce 8800 GT 512MB. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 470400 (1400%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 7900 XT is the winner, by a large margin. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 278400 (2900%)

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 transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.