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GeForce GTX 550 Ti vs GeForce GTX 580 3GB


Intro

The GeForce GTX 550 Ti uses a 40 nm design. nVidia has set the core speed at 900 MHz. The GDDR5 RAM works at a frequency of 1026 MHz on this particular card. It features 192 SPUs as well as 32 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 580 3GB, which makes use of a 40 nm design. nVidia has clocked the core frequency at 772 MHz. The GDDR5 RAM runs at a frequency of 1002 MHz on this card. It features 512 SPUs along with 64 TAUs and 48 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 GTX 580 3GB 244 Watts
Difference: 128 Watts (110%)

Memory Bandwidth

In theory, the GeForce GTX 580 3GB should perform much faster than the GeForce GTX 550 Ti overall. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 93888 (95%)

Texel Rate

The GeForce GTX 580 3GB should be much (about 72%) faster with regards to AF than the GeForce GTX 550 Ti. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 20608 (72%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 580 3GB is the winner, and very much so. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce GTX 550 Ti 21600 Mpixels/sec
Difference: 15456 (72%)

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 GTX 550 Ti

Amazon.com

GeForce GTX 580 3GB

Amazon.com

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 GTX 550 Ti GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year March 2011 November 2010
Code Name GF116 GF110
Memory 1024 MB 3072 MB
Core Speed 900 MHz 772 MHz
Memory Speed 4104 MHz 4008 MHz
Power (Max TDP) 116 watts 244 watts
Bandwidth 98496 MB/sec 192384 MB/sec
Texel Rate 28800 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 192 512
Texture Mapping Units 32 64
Render Output Units 24 48
Bus Type GDDR5 GDDR5
Bus Width 192-bit 384-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 3000 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 550 Ti

Amazon.com

GeForce GTX 580 3GB

Amazon.com

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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