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GeForce 8800 GS vs GeForce 8800 GT 256MB

Intro

The GeForce 8800 GS makes use of a 65 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR3 memory works at a frequency of 800 MHz on this card. It features 96 SPUs as well as 48 Texture Address Units and 12 Rasterization Operator Units.

Compare those specs to the GeForce 8800 GT 256MB, which comes with clock speeds of 600 MHz on the GPU, and 700 MHz on the 256 MB of GDDR3 RAM. It features 112 SPUs along with 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce 8800 GT 256MB should theoretically perform a little bit faster than the GeForce 8800 GS overall. (explain)

GeForce 8800 GT 256MB 44800 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 6400 (17%)

Texel Rate

The GeForce 8800 GT 256MB should be quite a bit (approximately 27%) better at anisotropic filtering than the GeForce 8800 GS. (explain)

GeForce 8800 GT 256MB 33600 Mtexels/sec
GeForce 8800 GS 26400 Mtexels/sec
Difference: 7200 (27%)

Pixel Rate

The GeForce 8800 GT 256MB should be much (more or less 45%) faster with regards to FSAA than the GeForce 8800 GS, and able to handle higher screen resolutions without losing too much performance. (explain)

GeForce 8800 GT 256MB 9600 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 3000 (45%)

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 GS

Amazon.com

Check prices at:

GeForce 8800 GT 256MB

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 8800 GS GeForce 8800 GT 256MB
Manufacturer nVidia nVidia
Year Jan 2008 Dec 2007
Code Name G92 G92
Memory 384 MB 256 MB
Core Speed 550 MHz 600 MHz
Memory Speed 1600 MHz 1400 MHz
Power (Max TDP) 105 watts 105 watts
Bandwidth 38400 MB/sec 44800 MB/sec
Texel Rate 26400 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 9600 Mpixels/sec
Unified Shaders 96 112
Texture Mapping Units 48 56
Render Output Units 12 16
Bus Type GDDR3 GDDR3
Bus Width 192-bit 256-bit
Fab Process 65 nm 65 nm
Transistors 754 million 754 million
Bus PCIe x16 2.0 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 (counted in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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

Display Prices

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GeForce 8800 GS

Amazon.com

Check prices at:

GeForce 8800 GT 256MB

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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