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GeForce 8800 GT 512MB vs Radeon RX 7900 XT

Intro

The GeForce 8800 GT 512MB uses a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 RAM is set to run at a frequency of 900 MHz on this specific card. It features 112 SPUs as well as 56 Texture Address Units and 16 ROPs.

Compare all of that to the Radeon RX 7900 XT, which has clock speeds of 1500 MHz on the GPU, and 2500 MHz on the 20480 MB of GDDR6 RAM. It features 5376 SPUs as well as 336 Texture Address Units and 192 Rasterization Operator Units.

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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 should be 1322% faster than the GeForce 8800 GT 512MB overall, because of 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 much (approximately 1400%) more effective at texture 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 using 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

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GeForce 8800 GT 512MB

Amazon.com

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Radeon RX 7900 XT

Amazon.com

Check prices at:

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 7900 XT
Manufacturer nVidia AMD
Year Oct 2007 December 2022
Code Name G92 Navi 31 XT
Memory 512 MB 20480 MB
Core Speed 600 MHz 1500 MHz
Memory Speed 1800 MHz 5000 GB/s
Power (Max TDP) 105 watts 300 watts
Bandwidth 57600 MB/sec 819200 MB/sec
Texel Rate 33600 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 112 5376
Texture Mapping Units 56 336
Render Output Units 16 192
Bus Type GDDR3 GDDR6
Bus Width 256-bit 320-bit
Fab Process 65 nm 5 nm
Transistors 754 million 57700 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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount 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 better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 8800 GT 512MB

Amazon.com

Check prices at:

Radeon RX 7900 XT

Amazon.com

Check prices at:

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.

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