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GeForce 8600 GT 1GB GDDR3 vs Geforce GTX 670

Intro

The GeForce 8600 GT 1GB GDDR3 comes with a clock frequency of 540 MHz and a GDDR3 memory speed of 700 MHz. It also uses 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 that to the Geforce GTX 670, which has a clock speed of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1344 SPUs, 112 TAUs, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3 47 Watts
Geforce GTX 670 170 Watts
Difference: 123 Watts (262%)

Memory Bandwidth

Theoretically, the Geforce GTX 670 should perform quite a bit faster than the GeForce 8600 GT 1GB GDDR3 overall. (explain)

Geforce GTX 670 192000 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 169600 (757%)

Texel Rate

The Geforce GTX 670 should be a lot (approximately 1086%) better at AF than the GeForce 8600 GT 1GB GDDR3. (explain)

Geforce GTX 670 102480 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 93840 (1086%)

Pixel Rate

The Geforce GTX 670 is quite a bit (more or less 578%) better at full screen anti-aliasing than the GeForce 8600 GT 1GB GDDR3, and will be able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 670 29280 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 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 1GB GDDR3

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 1GB GDDR3 Geforce GTX 670
Manufacturer nVidia nVidia
Year April 2007 May 2012
Code Name G84 GK104
Memory 1024 MB 2048 MB
Core Speed 540 MHz 915 MHz
Memory Speed 1400 MHz 6000 MHz
Power (Max TDP) 47 watts 170 watts
Bandwidth 22400 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 GDDR3 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: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 8600 GT 1GB GDDR3

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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