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GeForce 8800 GTX vs GeForce GTX 550 Ti

Intro

The GeForce 8800 GTX has a core clock speed of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 384-bit bus, and uses a 90 nm design. It features 128 SPUs, 64 Texture Address Units, and 24 ROPs.

Compare all that to the GeForce GTX 550 Ti, which has core speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
GeForce 8800 GTX 155 Watts
Difference: 39 Watts (34%)

Memory Bandwidth

Theoretically, the GeForce GTX 550 Ti should be just a bit faster than the GeForce 8800 GTX overall. (explain)

GeForce GTX 550 Ti 98496 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 12096 (14%)

Texel Rate

The GeForce 8800 GTX is much (more or less 28%) faster with regards to anisotropic filtering than the GeForce GTX 550 Ti. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 8000 (28%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 550 Ti is the winner, by a large margin. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 7800 (57%)

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 GTX

Amazon.com

Check prices at:

GeForce GTX 550 Ti

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 GTX GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year Nov 2006 March 2011
Code Name G80 GF116
Memory 768 MB 1024 MB
Core Speed 575 MHz 900 MHz
Memory Speed 1800 MHz 4104 MHz
Power (Max TDP) 155 watts 116 watts
Bandwidth 86400 MB/sec 98496 MB/sec
Texel Rate 36800 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 32
Render Output Units 24 24
Bus Type GDDR3 GDDR5
Bus Width 384-bit 192-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1170 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, the result 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video 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 number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GTX 550 Ti

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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