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GeForce 8600 GT 512MB DDR2 vs Geforce GTX 670

Intro

The GeForce 8600 GT 512MB DDR2 makes use of a 80 nm design. nVidia has clocked the core frequency at 540 MHz. The DDR2 memory runs at a frequency of 400 MHz on this model. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specifications to the Geforce GTX 670, which uses a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 memory works at a speed of 1500 MHz on this card. It features 1344 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
Geforce GTX 670 170 Watts
Difference: 123 Watts (262%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 670 is 1400% quicker than the GeForce 8600 GT 512MB DDR2 in general, due to its higher bandwidth. (explain)

Geforce GTX 670 192000 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 179200 (1400%)

Texel Rate

The Geforce GTX 670 should be a lot (about 1086%) faster with regards to AF than the GeForce 8600 GT 512MB DDR2. (explain)

Geforce GTX 670 102480 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 93840 (1086%)

Pixel Rate

The Geforce GTX 670 is a lot (more or less 578%) more effective at full screen anti-aliasing than the GeForce 8600 GT 512MB DDR2, and also will be capable of handling higher resolutions more effectively. (explain)

Geforce GTX 670 29280 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 24960 (578%)

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

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Geforce GTX 670

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 512MB DDR2 Geforce GTX 670
Manufacturer nVidia nVidia
Year April 2007 May 2012
Code Name G84 GK104
Memory 512 MB 2048 MB
Core Speed 540 MHz 915 MHz
Memory Speed 800 MHz 6000 MHz
Power (Max TDP) 47 watts 170 watts
Bandwidth 12800 MB/sec 192000 MB/sec
Texel Rate 8640 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 29280 Mpixels/sec
Unified Shaders 32 1344
Texture Mapping Units 16 112
Render Output Units 8 32
Bus Type DDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 28 nm
Transistors 289 million 3540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

Geforce GTX 670

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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