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GeForce 8800 GTS (G80) 640MB vs GeForce GT 430 1GB

Intro

The GeForce 8800 GTS (G80) 640MB has clock speeds of 513 MHz on the GPU, and 792 MHz on the 640 MB of GDDR3 memory. It features 96 SPUs along with 48 Texture Address Units and 20 Rasterization Operator Units.

Compare all that to the GeForce GT 430 1GB, which uses a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this specific model. It features 96 SPUs as well as 16 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
GeForce 8800 GTS (G80) 640MB 143 Watts
Difference: 83 Watts (138%)

Memory Bandwidth

The GeForce 8800 GTS (G80) 640MB should in theory be quite a bit faster than the GeForce GT 430 1GB in general. (explain)

GeForce 8800 GTS (G80) 640MB 63360 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 34560 (120%)

Texel Rate

The GeForce 8800 GTS (G80) 640MB will be a lot (more or less 120%) faster with regards to texture filtering than the GeForce GT 430 1GB. (explain)

GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 13424 (120%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 8800 GTS (G80) 640MB is superior to the GeForce GT 430 1GB, and very much so. (explain)

GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 7460 (266%)

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 GTS (G80) 640MB

Amazon.com

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GeForce GT 430 1GB

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 8800 GTS (G80) 640MB GeForce GT 430 1GB
Manufacturer nVidia nVidia
Year Nov 2006 (640) October 2010
Code Name G80 GF108
Memory 640 MB 1024 MB
Core Speed 513 MHz 700 MHz
Memory Speed 1584 MHz 1800 MHz
Power (Max TDP) 143 watts 60 watts
Bandwidth 63360 MB/sec 28800 MB/sec
Texel Rate 24624 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 48 16
Render Output Units 20 4
Bus Type GDDR3 GDDR3
Bus Width 320-bit 128-bit
Fab Process 90 nm 40 nm
Transistors 681 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 max amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

GeForce GT 430 1GB

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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