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GeForce 8800 GS vs GeForce 8800 GT 256MB

Intro

The GeForce 8800 GS features core speeds of 550 MHz on the GPU, and 800 MHz on the 384 MB of GDDR3 RAM. It features 96 SPUs along with 48 Texture Address Units and 12 Rasterization Operator Units.

Compare those specifications to the GeForce 8800 GT 256MB, which uses a 65 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 RAM is set to run at a speed of 700 MHz on this particular card. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce 8800 GT 256MB should be a small bit faster than the GeForce 8800 GS in general. (explain)

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

Texel Rate

The GeForce 8800 GT 256MB is a lot (about 27%) more effective 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 will be a lot (about 45%) better at FSAA than the GeForce 8800 GS, and also capable of handling higher screen resolutions while still performing well. (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: Bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

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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