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GeForce 9800 GT 512MB vs GeForce GTX 580 3GB

Intro

The GeForce 9800 GT 512MB makes use of a 65/55 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this particular model. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare that to the GeForce GTX 580 3GB, which comes with core clock speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 memory. It features 512 SPUs as well as 64 Texture Address Units and 48 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB 105 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 139 Watts (132%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB is 234% faster than the GeForce 9800 GT 512MB in general, because of its greater bandwidth. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 134784 (234%)

Texel Rate

The GeForce GTX 580 3GB should be much (approximately 47%) more effective at AF than the GeForce 9800 GT 512MB. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
GeForce 9800 GT 512MB 33600 Mtexels/sec
Difference: 15808 (47%)

Pixel Rate

The GeForce GTX 580 3GB will be quite a bit (more or less 286%) more effective at FSAA than the GeForce 9800 GT 512MB, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce 9800 GT 512MB 9600 Mpixels/sec
Difference: 27456 (286%)

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 GT 512MB

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.

Specifications

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Model GeForce 9800 GT 512MB GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year July 2008 November 2010
Code Name G92a/b GF110
Memory 512 MB 3072 MB
Core Speed 600 MHz 772 MHz
Memory Speed 1800 MHz 4008 MHz
Power (Max TDP) 105 watts 244 watts
Bandwidth 57600 MB/sec 192384 MB/sec
Texel Rate 33600 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 112 512
Texture Mapping Units 56 64
Render Output Units 16 48
Bus Type GDDR3 GDDR5
Bus Width 256-bit 384-bit
Fab Process 65/55 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 (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 9800 GT 512MB

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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