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GeForce 8800 GT 512MB vs Radeon RX 6800

Intro

The GeForce 8800 GT 512MB makes use of a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory runs at a speed of 900 MHz on this particular model. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare those specs to the Radeon RX 6800, which has a core clock speed of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 256-bit memory bus, and uses a 7 nm design. It features 3840 SPUs, 240 Texture Address Units, and 96 Raster Operation Units.

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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

Performance-wise, the Radeon RX 6800 should theoretically be quite a bit better 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 is a lot (more or less 1114%) more effective 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

If running with a high resolution is important to you, then the Radeon RX 6800 is a better choice, by far. (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

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GeForce 8800 GT 512MB

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Radeon RX 6800

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce 8800 GT 512MB	Radeon RX 6800
Manufacturer	nVidia	AMD
Year	Oct 2007	November 2020
Code Name	G92	Navi 21
Memory	512 MB	16384 MB
Core Speed	600 MHz	1700 MHz
Memory Speed	1800 MHz	4000 GB/s
Power (Max TDP)	105 watts	250 watts
Bandwidth	57600 MB/sec	524288 MB/sec
Texel Rate	33600 Mtexels/sec	408000 Mtexels/sec
Pixel Rate	9600 Mpixels/sec	163200 Mpixels/sec
Unified Shaders	112	3840
Texture Mapping Units	56	240
Render Output Units	16	96
Bus Type	GDDR3	GDDR6
Bus Width	256-bit	256-bit
Fab Process	65 nm	7 nm
Transistors	754 million	26800 million
Bus	PCIe x16 2.0	PCIe 4.0 x16
DirectX Version	DirectX 10	DirectX 12
OpenGL Version	OpenGL 3.0	OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of information (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 its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

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