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GeForce 8800 GTS (G80) 320MB vs GeForce 8800 GTX

Intro

The GeForce 8800 GTS (G80) 320MB features clock speeds of 513 MHz on the GPU, and 792 MHz on the 320 MB of GDDR3 memory. It features 96 SPUs as well as 48 TAUs and 20 Rasterization Operator Units.

Compare those specifications to the GeForce 8800 GTX, which comes with a GPU core clock speed of 575 MHz, and 768 MB of GDDR3 RAM running at 900 MHz through a 384-bit bus. It also is made up of 128 SPUs, 64 Texture Address Units, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 320MB 143 Watts
GeForce 8800 GTX 155 Watts
Difference: 12 Watts (8%)

Memory Bandwidth

The GeForce 8800 GTX, in theory, should be a lot faster than the GeForce 8800 GTS (G80) 320MB overall. (explain)

GeForce 8800 GTX 86400 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 23040 (36%)

Texel Rate

The GeForce 8800 GTX is much (about 49%) faster with regards to AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 12176 (49%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 8800 GTX is a better choice, by far. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 3540 (35%)

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 (G80) 320MB

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.

Specifications

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Model GeForce 8800 GTS (G80) 320MB GeForce 8800 GTX
Manufacturer nVidia nVidia
Year Feb 2007 Nov 2006
Code Name G80 G80
Memory 320 MB 768 MB
Core Speed 513 MHz 575 MHz
Memory Speed 1584 MHz 1800 MHz
Power (Max TDP) 143 watts 155 watts
Bandwidth 63360 MB/sec 86400 MB/sec
Texel Rate 24624 Mtexels/sec 36800 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 13800 Mpixels/sec
Unified Shaders 96 128
Texture Mapping Units 48 64
Render Output Units 20 24
Bus Type GDDR3 GDDR3
Bus Width 320-bit 384-bit
Fab Process 90 nm 90 nm
Transistors 681 million 681 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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

Hide Prices

GeForce 8800 GTS (G80) 320MB

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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