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GeForce 9800 GT 1GB vs GeForce GT 430

Intro

The GeForce 9800 GT 1GB has clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 112 SPUs as well as 56 TAUs and 16 ROPs.

Compare those specs to the GeForce GT 430, which comes with a clock speed of 700 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 96 SPUs, 16 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 45 Watts (75%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GT 1GB will be 100% quicker than the GeForce GT 430 in general, due to its higher bandwidth. (explain)

GeForce 9800 GT 1GB 57600 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 28800 (100%)

Texel Rate

The GeForce 9800 GT 1GB should be a lot (more or less 200%) better at anisotropic filtering than the GeForce GT 430. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce GT 430 11200 Mtexels/sec
Difference: 22400 (200%)

Pixel Rate

The GeForce 9800 GT 1GB will be quite a bit (about 243%) faster with regards to AA than the GeForce GT 430, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 9800 GT 1GB 9600 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 6800 (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 GT 1GB

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 GT 1GB GeForce GT 430
Manufacturer nVidia nVidia
Year July 2008 October 2010
Code Name G92a/b GF108
Memory 1024 MB 512 MB
Core Speed 600 MHz 700 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 105 watts 60 watts
Bandwidth 57600 MB/sec 28800 MB/sec
Texel Rate 33600 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 112 96
Texture Mapping Units 56 16
Render Output Units 16 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
Fab Process 65/55 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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 9800 GT 1GB

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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