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GeForce 9800 GTX vs GeForce GTX 580 3GB

Intro

The GeForce 9800 GTX makes use of a 65 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR3 RAM works at a frequency of 1100 MHz on this specific card. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

Compare those specifications to the GeForce GTX 580 3GB, which comes with GPU clock speed of 772 MHz, and 3072 MB of GDDR5 memory set to run at 1002 MHz through a 384-bit bus. It also is made up of 512 SPUs, 64 TAUs, and 48 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX 140 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 104 Watts (74%)

Memory Bandwidth

In theory, the GeForce GTX 580 3GB should be 173% faster than the GeForce 9800 GTX in general, due to its higher data rate. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce 9800 GTX 70400 MB/sec
Difference: 121984 (173%)

Texel Rate

The GeForce GTX 580 3GB is a little bit (about 14%) more effective at texture filtering than the GeForce 9800 GTX. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
GeForce 9800 GTX 43200 Mtexels/sec
Difference: 6208 (14%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 3GB is a better choice, by a large margin. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 26256 (243%)

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 9800 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 9800 GTX GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year April 2008 November 2010
Code Name G92 GF110
Memory 512 MB 3072 MB
Core Speed 675 MHz 772 MHz
Memory Speed 2200 MHz 4008 MHz
Power (Max TDP) 140 watts 244 watts
Bandwidth 70400 MB/sec 192384 MB/sec
Texel Rate 43200 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 128 512
Texture Mapping Units 64 64
Render Output Units 16 48
Bus Type GDDR3 GDDR5
Bus Width 256-bit 384-bit
Fab Process 65 nm 40 nm
Transistors 754 million 3000 million
Bus PCIe x16 2.0 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 data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially 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 9800 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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