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GeForce 8600 GT 256MB DDR2 vs GeForce GT 130

Intro

The GeForce 8600 GT 256MB DDR2 comes with a clock speed of 540 MHz and a DDR2 memory frequency of 400 MHz. It also makes use of a 128-bit memory bus, and makes use of a 80 nm design. It features 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all of that to the GeForce GT 130, which has GPU core speed of 500 MHz, and 768 MB of DDR2 memory set to run at 250 MHz through a 192-bit bus. It also features 48 SPUs, 24 Texture Address Units, and 16 ROPs.

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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

Performance-wise, the GeForce 8600 GT 256MB DDR2 should theoretically be just a bit superior to 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 should be quite a bit (about 39%) better at texture filtering 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

The GeForce GT 130 will be quite a bit (more or less 85%) more effective at anti-aliasing than the GeForce 8600 GT 256MB DDR2, and also should be able to handle higher screen resolutions while still performing well. (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

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.

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: Bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling 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 in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock 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 fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory 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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