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GeForce 8600 GT 256MB DDR2 vs GeForce GT 130

Intro

The GeForce 8600 GT 256MB DDR2 has a GPU core clock speed of 540 MHz, and the 256 MB of DDR2 RAM runs at 400 MHz through a 128-bit bus. It also is made up of 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare that to the GeForce GT 130, which has GPU core speed of 500 MHz, and 768 MB of DDR2 RAM set to run at 250 MHz through a 192-bit bus. It also is made up of 48 SPUs, 24 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 256MB DDR2 47 Watts
GeForce GT 130 75 Watts
Difference: 28 Watts (60%)

Memory Bandwidth

The GeForce 8600 GT 256MB DDR2 should in theory be a bit faster than the GeForce GT 130 overall. (explain)

GeForce 8600 GT 256MB DDR2 12800 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 800 (7%)

Texel Rate

The GeForce GT 130 is quite a bit (more or less 39%) more effective at AF than the GeForce 8600 GT 256MB DDR2. (explain)

GeForce GT 130 12000 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 3360 (39%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 130 is a better choice, by far. (explain)

GeForce GT 130 8000 Mpixels/sec
GeForce 8600 GT 256MB DDR2 4320 Mpixels/sec
Difference: 3680 (85%)

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 256MB DDR2

Amazon.com

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GeForce GT 130

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 256MB DDR2 GeForce GT 130
Manufacturer nVidia nVidia
Year April 2007 March 10, 2009
Code Name G84 G94b
Memory 256 MB 768 MB
Core Speed 540 MHz 500 MHz
Memory Speed 800 MHz 500 MHz
Power (Max TDP) 47 watts 75 watts
Bandwidth 12800 MB/sec 12000 MB/sec
Texel Rate 8640 Mtexels/sec 12000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 32 48
Texture Mapping Units 16 24
Render Output Units 8 16
Bus Type DDR2 DDR2
Bus Width 128-bit 192-bit
Fab Process 80 nm 55 nm
Transistors 289 million 505 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 8600 GT 256MB DDR2

Amazon.com

Check prices at:

GeForce GT 130

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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