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GeForce 8800 GTX vs GeForce GTX 580 3GB

Intro

The GeForce 8800 GTX has a clock frequency of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 384-bit bus, and uses a 90 nm design. It features 128 SPUs, 64 TAUs, and 24 ROPs.

Compare all that to the GeForce GTX 580 3GB, which has core speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 RAM. It features 512 SPUs along with 64 Texture Address Units and 48 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTX 155 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 89 Watts (57%)

Memory Bandwidth

The GeForce GTX 580 3GB should theoretically perform a lot faster than the GeForce 8800 GTX in general. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 105984 (123%)

Texel Rate

The GeForce GTX 580 3GB should be much (more or less 34%) more effective at anisotropic filtering than the GeForce 8800 GTX. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 12608 (34%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 580 3GB is a better choice, and very much so. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 23256 (169%)

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 GTX

Amazon.com

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GeForce GTX 580 3GB

Amazon.com

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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 GTX GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year Nov 2006 November 2010
Code Name G80 GF110
Memory 768 MB 3072 MB
Core Speed 575 MHz 772 MHz
Memory Speed 1800 MHz 4008 MHz
Power (Max TDP) 155 watts 244 watts
Bandwidth 86400 MB/sec 192384 MB/sec
Texel Rate 36800 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 128 512
Texture Mapping Units 64 64
Render Output Units 24 48
Bus Type GDDR3 GDDR5
Bus Width 384-bit 384-bit
Fab Process 90 nm 40 nm
Transistors 681 million 3000 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card 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 per second.

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

Display Prices

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GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GTX 580 3GB

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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