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GeForce 8800 GTS (G92) vs GeForce 8800 GTX

Intro

The GeForce 8800 GTS (G92) has a GPU clock speed of 650 MHz, and the 512 MB of GDDR3 RAM runs at 970 MHz through a 256-bit bus. It also features 128 SPUs, 64 Texture Address Units, and 16 ROPs.

Compare all that to the GeForce 8800 GTX, which comes with core speeds of 575 MHz on the GPU, and 900 MHz on the 768 MB of GDDR3 RAM. It features 128 SPUs as well as 64 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92) 135 Watts
GeForce 8800 GTX 155 Watts
Difference: 20 Watts (15%)

Memory Bandwidth

The GeForce 8800 GTX should in theory be quite a bit faster than the GeForce 8800 GTS (G92) in general. (explain)

GeForce 8800 GTX 86400 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 24320 (39%)

Texel Rate

The GeForce 8800 GTS (G92) is just a bit (more or less 13%) more effective at texture filtering than the GeForce 8800 GTX. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 4800 (13%)

Pixel Rate

The GeForce 8800 GTX will be quite a bit (more or less 33%) better at AA than the GeForce 8800 GTS (G92), and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 3400 (33%)

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 8800 GTS (G92)

Amazon.com

Check prices at:

GeForce 8800 GTX

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 8800 GTS (G92) GeForce 8800 GTX
Manufacturer nVidia nVidia
Year Dec 2007 Nov 2006
Code Name G92 G80
Memory 512 MB 768 MB
Core Speed 650 MHz 575 MHz
Memory Speed 1940 MHz 1800 MHz
Power (Max TDP) 135 watts 155 watts
Bandwidth 62080 MB/sec 86400 MB/sec
Texel Rate 41600 Mtexels/sec 36800 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 13800 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 16 24
Bus Type GDDR3 GDDR3
Bus Width 256-bit 384-bit
Fab Process 65 nm 90 nm
Transistors 754 million 681 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

GeForce 8800 GTX

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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