GeForce 8800 GT 512MB vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which comes with core clock speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 3840 SPUs along with 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, in theory, should be a lot faster than the GeForce 8800 GT 512MB in general. (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 a lot (more or less 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 quite a bit (about 1600%) more effective at AA than the GeForce 8800 GT 512MB, and also will be capable of handling higher resolutions more effectively. (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 data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.