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GeForce 9800 GX2 vs GeForce GT 430 (OEM)

Intro

The GeForce 9800 GX2 comes with a GPU clock speed of 600 MHz, and the 512 MB of GDDR3 RAM runs at 1000 MHz through a 256-bit bus. It also is made up of 128 Stream Processors, 64 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the GeForce GT 430 (OEM), which features GPU clock speed of 700 MHz, and 2048 MB of GDDR3 RAM set to run at 900 MHz through a 128-bit bus. It also features 96 Stream Processors, 16 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM) 60 Watts
GeForce 9800 GX2 197 Watts
Difference: 137 Watts (228%)

Memory Bandwidth

The GeForce 9800 GX2, in theory, should perform much faster than the GeForce GT 430 (OEM) in general. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GT 430 (OEM) 28800 MB/sec
Difference: 99200 (344%)

Texel Rate

The GeForce 9800 GX2 is a lot (more or less 586%) better at AF than the GeForce GT 430 (OEM). (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GT 430 (OEM) 11200 Mtexels/sec
Difference: 65600 (586%)

Pixel Rate

The GeForce 9800 GX2 should be much (more or less 586%) faster with regards to AA than the GeForce GT 430 (OEM), and also capable of handling higher resolutions while still performing well. (explain)

GeForce 9800 GX2 19200 Mpixels/sec
GeForce GT 430 (OEM) 2800 Mpixels/sec
Difference: 16400 (586%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GT 430 (OEM)

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 GX2 GeForce GT 430 (OEM)
Manufacturer nVidia nVidia
Year Mar 2008 October 2010
Code Name G92 GF108
Memory 512 MB (x2) 2048 MB
Core Speed 600 MHz (x2) 700 MHz
Memory Speed 2000 MHz (x2) 1800 MHz
Power (Max TDP) 197 watts 60 watts
Bandwidth 128000 MB/sec 28800 MB/sec
Texel Rate 76800 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 128 (x2) 96
Texture Mapping Units 64 (x2) 16
Render Output Units 16 (x2) 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit (x2) 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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GT 430 (OEM)

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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