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GeForce 8600 GT 512MB DDR2 vs GeForce GTX 285 1GB

Intro

The GeForce 8600 GT 512MB DDR2 comes with a core clock frequency of 540 MHz and a DDR2 memory speed of 400 MHz. It also makes use of a 128-bit bus, and makes use of a 80 nm design. It is comprised of 32 SPUs, 16 TAUs, and 8 ROPs.

Compare that to the GeForce GTX 285 1GB, which comes with clock speeds of 648 MHz on the GPU, and 1242 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs as well as 80 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 157 Watts (334%)

Memory Bandwidth

The GeForce GTX 285 1GB should in theory be much faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GTX 285 1GB 158976 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 146176 (1142%)

Texel Rate

The GeForce GTX 285 1GB is a lot (more or less 500%) more effective at AF than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTX 285 1GB 51840 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 43200 (500%)

Pixel Rate

The GeForce GTX 285 1GB will be a lot (about 380%) more effective at FSAA than the GeForce 8600 GT 512MB DDR2, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 285 1GB 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 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.

Specifications

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Model GeForce 8600 GT 512MB DDR2 GeForce GTX 285 1GB
Manufacturer nVidia nVidia
Year April 2007 January 15, 2009
Code Name G84 G200b
Memory 512 MB 1024 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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better 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 most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 fill 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

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

GeForce GTX 285 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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