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GeForce 8600 GT 512MB DDR2 vs GeForce GT 430

Intro

The GeForce 8600 GT 512MB DDR2 makes use of a 80 nm design. nVidia has set the core speed at 540 MHz. The DDR2 memory runs at a speed of 400 MHz on this particular model. It features 32 SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the GeForce GT 430, which uses a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this specific card. 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 8600 GT 512MB DDR2 47 Watts
GeForce GT 430 60 Watts
Difference: 13 Watts (28%)

Memory Bandwidth

The GeForce GT 430 should theoretically be much faster than the GeForce 8600 GT 512MB DDR2 in general. (explain)

GeForce GT 430 28800 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 16000 (125%)

Texel Rate

The GeForce GT 430 will be a lot (about 30%) more effective at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GT 430 11200 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 2560 (30%)

Pixel Rate

The GeForce 8600 GT 512MB DDR2 will be quite a bit (more or less 54%) faster with regards to FSAA than the GeForce GT 430, and able to handle higher resolutions more effectively. (explain)

GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 1520 (54%)

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 8600 GT 512MB DDR2

Amazon.com

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GeForce GT 430

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 8600 GT 512MB DDR2 GeForce GT 430
Manufacturer nVidia nVidia
Year April 2007 October 2010
Code Name G84 GF108
Memory 512 MB 512 MB
Core Speed 540 MHz 700 MHz
Memory Speed 800 MHz 1800 MHz
Power (Max TDP) 47 watts 60 watts
Bandwidth 12800 MB/sec 28800 MB/sec
Texel Rate 8640 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 32 96
Texture Mapping Units 16 16
Render Output Units 8 4
Bus Type DDR2 GDDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 585 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8600 GT 512MB DDR2

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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