GeForce GTX 580 3GB vs GeForce GTX 980 Ti

Intro

Compare all that to the GeForce GTX 980 Ti, which features core clock speeds of 1000 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 memory. It features 2816 SPUs along with 176 TAUs and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 3GB		244 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 6 Watts (2%)

Memory Bandwidth

In theory, the GeForce GTX 980 Ti should be 75% faster than the GeForce GTX 580 3GB overall, due to its higher bandwidth. (explain)

GeForce GTX 980 Ti		336000 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 143616 (75%)

Texel Rate

The GeForce GTX 980 Ti should be quite a bit (approximately 256%) more effective at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 126592 (256%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 Ti is a better choice, by a large margin. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
GeForce GTX 580 3GB		37056 Mpixels/sec
	Difference: 58944 (159%)

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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.