GeForce GTX 580 3GB vs GeForce GTX Titan

Intro

Compare those specs to the GeForce GTX Titan, which has core clock speeds of 837 MHz on the GPU, and 1502 MHz on the 6144 MB of GDDR5 RAM. It features 2688 SPUs as well as 224 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 3GB		244 Watts
GeForce GTX Titan		250 Watts
	Difference: 6 Watts (2%)

Memory Bandwidth

In theory, the GeForce GTX Titan should be quite a bit faster than the GeForce GTX 580 3GB overall. (explain)

GeForce GTX Titan		288384 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 96000 (50%)

Texel Rate

The GeForce GTX Titan is much (more or less 279%) better at AF than the GeForce GTX 580 3GB. (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 138080 (279%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX Titan is the winner, though only just barely. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce GTX 580 3GB		37056 Mpixels/sec
	Difference: 3120 (8%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 can be processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better 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 most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.