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GeForce GTX 550 Ti vs GeForce GTX 580 3GB

Intro

The GeForce GTX 550 Ti features clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs along with 32 Texture Address Units and 24 ROPs.

Compare those specifications to the GeForce GTX 580 3GB, which has GPU core speed of 772 MHz, and 3072 MB of GDDR5 RAM set to run at 1002 MHz through a 384-bit bus. It also is made up of 512 SPUs, 64 Texture Address Units, and 48 ROPs.

(No game benchmarks for this combination yet.)

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

Theoretically speaking, the GeForce GTX 580 3GB should perform a lot 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%) more effective at anisotropic filtering 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

The GeForce GTX 580 3GB should be quite a bit (approximately 72%) faster with regards to AA than the GeForce GTX 550 Ti, and also capable of handling higher screen resolutions more effectively. (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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 550 Ti

Amazon.com

Other US-based stores

GeForce GTX 580 3GB

Amazon.com

Other US-based stores

Specifications

Model GeForce GTX 550 Ti GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year March 2011 November 2010
Code Name GF116 GF110
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe x16
Memory 1024 MB 3072 MB
Core Speed 900 MHz 772 MHz
Shader Speed 1800 MHz 1544 MHz
Memory Speed 1026 MHz (4104 MHz effective) 1002 MHz (4008 MHz effective)
Unified Shaders 192 512
Texture Mapping Units 32 64
Render Output Units 24 48
Bus Type GDDR5 GDDR5
Bus Width 192-bit 384-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 116 watts 244 watts
Shader Model 5.0 5.0
Bandwidth 98496 MB/sec 192384 MB/sec
Texel Rate 28800 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 37056 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

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