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GeForce 8800 GT 256MB vs GeForce 8800 GTS (G80) 320MB

Intro

The GeForce 8800 GT 256MB comes with core clock speeds of 600 MHz on the GPU, and 700 MHz on the 256 MB of GDDR3 memory. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Compare all that to the GeForce 8800 GTS (G80) 320MB, which has a GPU core clock speed of 513 MHz, and 320 MB of GDDR3 RAM set to run at 792 MHz through a 320-bit bus. It also is comprised of 96 SPUs, 48 Texture Address Units, and 20 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 256MB 105 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 38 Watts (36%)

Memory Bandwidth

Theoretically, the GeForce 8800 GTS (G80) 320MB should perform a lot faster than the GeForce 8800 GT 256MB in general. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 18560 (41%)

Texel Rate

The GeForce 8800 GT 256MB is much (approximately 36%) better at texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce 8800 GT 256MB 33600 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 8976 (36%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB should be a bit (more or less 7%) better at full screen anti-aliasing than the GeForce 8800 GT 256MB, and able to handle higher resolutions better. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce 8800 GT 256MB 9600 Mpixels/sec
Difference: 660 (7%)

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 GT 256MB

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 320MB

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

Display Specifications

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Model GeForce 8800 GT 256MB GeForce 8800 GTS (G80) 320MB
Manufacturer nVidia nVidia
Year Dec 2007 Feb 2007
Code Name G92 G80
Memory 256 MB 320 MB
Core Speed 600 MHz 513 MHz
Memory Speed 1400 MHz 1584 MHz
Power (Max TDP) 105 watts 143 watts
Bandwidth 44800 MB/sec 63360 MB/sec
Texel Rate 33600 Mtexels/sec 24624 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 10260 Mpixels/sec
Unified Shaders 112 96
Texture Mapping Units 56 48
Render Output Units 16 20
Bus Type GDDR3 GDDR3
Bus Width 256-bit 320-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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 256MB

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 320MB

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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