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GeForce 8800 GT 256MB vs GeForce GT 430

Intro

The GeForce 8800 GT 256MB uses a 65 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 memory runs at a speed of 700 MHz on this particular model. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare all that to the GeForce GT 430, which features a core clock frequency of 700 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 96 SPUs, 16 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
GeForce 8800 GT 256MB 105 Watts
Difference: 45 Watts (75%)

Memory Bandwidth

The GeForce 8800 GT 256MB should theoretically be a lot faster than the GeForce GT 430 overall. (explain)

GeForce 8800 GT 256MB 44800 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 16000 (56%)

Texel Rate

The GeForce 8800 GT 256MB should be quite a bit (about 200%) faster with regards to AF than the GeForce GT 430. (explain)

GeForce 8800 GT 256MB 33600 Mtexels/sec
GeForce GT 430 11200 Mtexels/sec
Difference: 22400 (200%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 8800 GT 256MB is the winner, and very much so. (explain)

GeForce 8800 GT 256MB 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 8800 GT 256MB

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 8800 GT 256MB GeForce GT 430
Manufacturer nVidia nVidia
Year Dec 2007 October 2010
Code Name G92 GF108
Memory 256 MB 512 MB
Core Speed 600 MHz 700 MHz
Memory Speed 1400 MHz 1800 MHz
Power (Max TDP) 105 watts 60 watts
Bandwidth 44800 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 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 (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 potential to reach the max fill rate.

Display Prices

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GeForce 8800 GT 256MB

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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