GeForce 8800 GT 512MB vs Radeon RX 6800

Intro

Compare that to the Radeon RX 6800, which features a clock speed 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

As far as performance goes, the Radeon RX 6800 should theoretically be much better 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 a lot (more or less 1114%) better at texture 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 will be a lot (more or less 1600%) more effective at full screen anti-aliasing than the GeForce 8800 GT 512MB, and will be capable of handling higher resolutions without slowing down too much. (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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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