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GeForce 8600 GS (OEM) vs GeForce 8600 GT 256MB GDDR3

Intro

The GeForce 8600 GS (OEM) features a 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 features 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specs to the GeForce 8600 GT 256MB GDDR3, which has a clock speed of 540 MHz and a GDDR3 memory frequency 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.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce 8600 GT 256MB GDDR3, in theory, should perform quite a bit faster than the GeForce 8600 GS (OEM) overall. (explain)

GeForce 8600 GT 256MB GDDR3 22400 MB/sec
GeForce 8600 GS (OEM) 12800 MB/sec
Difference: 9600 (75%)

Texel Rate

Both cards have exactly the same texel rate, so in theory they should be equally good at at AF. (explain)

Pixel Rate

Both cards have the exact same pixel rate, so theoretically they should perform equally good at at FSAA, and be able to handle the same screen resolutions. (explain)

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 GS (OEM)

Amazon.com

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GeForce 8600 GT 256MB GDDR3

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 GS (OEM) GeForce 8600 GT 256MB GDDR3
Manufacturer nVidia nVidia
Year April 2007 April 2007
Code Name G84 G84
Memory 256 MB 256 MB
Core Speed 540 MHz 540 MHz
Memory Speed 800 MHz 1400 MHz
Power (Max TDP) 47 watts 47 watts
Bandwidth 12800 MB/sec 22400 MB/sec
Texel Rate 8640 Mtexels/sec 8640 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 4320 Mpixels/sec
Unified Shaders 32 32
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR2 GDDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 80 nm
Transistors 289 million 289 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a 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 filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GS (OEM)

Amazon.com

Check prices at:

GeForce 8600 GT 256MB GDDR3

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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