GeForce 8800 GT 512MB vs Radeon RX 6800

Intro

Compare that to the Radeon RX 6800, which has a clock frequency of 1700 MHz and a GDDR6 memory speed of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 7 nm design. It is comprised of 3840 SPUs, 240 Texture Address Units, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
Radeon RX 6800		250 Watts
	Difference: 145 Watts (138%)

Memory Bandwidth

The Radeon RX 6800 should theoretically be quite a bit faster than the GeForce 8800 GT 512MB overall. (explain)

Radeon RX 6800		524288 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 466688 (810%)

Texel Rate

The Radeon RX 6800 will be quite a bit (about 1114%) more effective at anisotropic filtering than the GeForce 8800 GT 512MB. (explain)

Radeon RX 6800		408000 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 374400 (1114%)

Pixel Rate

The Radeon RX 6800 is a lot (approximately 1600%) more effective at anti-aliasing than the GeForce 8800 GT 512MB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 153600 (1600%)

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 information (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.