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GeForce 9800 GTX vs GeForce GT 430

Intro

The GeForce 9800 GTX makes use of a 65 nm design. nVidia has set the core speed at 675 MHz. The GDDR3 RAM is set to run at a frequency of 1100 MHz on this specific card. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Compare those specs to the GeForce GT 430, which makes use of a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR3 RAM works at a speed of 900 MHz on this particular model. It features 96 SPUs as well as 16 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
GeForce 9800 GTX 140 Watts
Difference: 80 Watts (133%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GTX should theoretically be quite a bit superior to the GeForce GT 430 in general. (explain)

GeForce 9800 GTX 70400 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 41600 (144%)

Texel Rate

The GeForce 9800 GTX should be quite a bit (more or less 286%) more effective at texture filtering than the GeForce GT 430. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce GT 430 11200 Mtexels/sec
Difference: 32000 (286%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 9800 GTX is a better choice, by a large margin. (explain)

GeForce 9800 GTX 10800 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 8000 (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 GTX

Amazon.com

Check prices at:

GeForce GT 430

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 GTX GeForce GT 430
Manufacturer nVidia nVidia
Year April 2008 October 2010
Code Name G92 GF108
Memory 512 MB 512 MB
Core Speed 675 MHz 700 MHz
Memory Speed 2200 MHz 1800 MHz
Power (Max TDP) 140 watts 60 watts
Bandwidth 70400 MB/sec 28800 MB/sec
Texel Rate 43200 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 128 96
Texture Mapping Units 64 16
Render Output Units 16 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 585 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 information (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce GT 430

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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