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GeForce 8600 GT 512MB DDR2 vs GeForce GTX 285 2GB

Intro

The GeForce 8600 GT 512MB DDR2 has a core clock frequency of 540 MHz and a DDR2 memory speed of 400 MHz. It also features a 128-bit memory bus, and uses a 80 nm design. It features 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare that to the GeForce GTX 285 2GB, which comes with GPU core speed of 648 MHz, and 2048 MB of GDDR3 RAM running at 1242 MHz through a 512-bit bus. It also is made up of 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 157 Watts (334%)

Memory Bandwidth

The GeForce GTX 285 2GB should theoretically perform a lot faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GTX 285 2GB 158976 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 146176 (1142%)

Texel Rate

The GeForce GTX 285 2GB will be a lot (more or less 500%) better at texture filtering than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTX 285 2GB 51840 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 43200 (500%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 285 2GB is the winner, by a large margin. (explain)

GeForce GTX 285 2GB 20736 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 16416 (380%)

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

Check prices at:

GeForce GTX 285 2GB

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 512MB DDR2 GeForce GTX 285 2GB
Manufacturer nVidia nVidia
Year April 2007 January 15, 2009
Code Name G84 G200b
Memory 512 MB 2048 MB
Core Speed 540 MHz 648 MHz
Memory Speed 800 MHz 2484 MHz
Power (Max TDP) 47 watts 204 watts
Bandwidth 12800 MB/sec 158976 MB/sec
Texel Rate 8640 Mtexels/sec 51840 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 20736 Mpixels/sec
Unified Shaders 32 240
Texture Mapping Units 16 80
Render Output Units 8 32
Bus Type DDR2 GDDR3
Bus Width 128-bit 512-bit
Fab Process 80 nm 55 nm
Transistors 289 million 1400 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of 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

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GTX 285 2GB

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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