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GeForce 8600 GTS vs GeForce 8800 GS

Intro

The GeForce 8600 GTS comes with a GPU core speed of 675 MHz, and the 512 MB of GDDR3 memory runs at 1000 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 ROPs.

Compare that to the GeForce 8800 GS, which features a GPU core clock speed of 550 MHz, and 384 MB of GDDR3 memory set to run at 800 MHz through a 192-bit bus. It also features 96 Stream Processors, 48 TAUs, and 12 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GTS 75 Watts
GeForce 8800 GS 105 Watts
Difference: 30 Watts (40%)

Memory Bandwidth

In theory, the GeForce 8800 GS will be 20% quicker than the GeForce 8600 GTS overall, because of its higher bandwidth. (explain)

GeForce 8800 GS 38400 MB/sec
GeForce 8600 GTS 32000 MB/sec
Difference: 6400 (20%)

Texel Rate

The GeForce 8800 GS should be quite a bit (approximately 144%) faster with regards to anisotropic filtering than the GeForce 8600 GTS. (explain)

GeForce 8800 GS 26400 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 15600 (144%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 8800 GS is a better choice, and very much so. (explain)

GeForce 8800 GS 6600 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 1200 (22%)

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 GTS

Amazon.com

Check prices at:

GeForce 8800 GS

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 GTS GeForce 8800 GS
Manufacturer nVidia nVidia
Year April 2007 Jan 2008
Code Name G84 G92
Memory 512 MB 384 MB
Core Speed 675 MHz 550 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 75 watts 105 watts
Bandwidth 32000 MB/sec 38400 MB/sec
Texel Rate 10800 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 32 96
Texture Mapping Units 16 48
Render Output Units 8 12
Bus Type GDDR3 GDDR3
Bus Width 128-bit 192-bit
Fab Process 80 nm 65 nm
Transistors 289 million 754 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GTS

Amazon.com

Check prices at:

GeForce 8800 GS

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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