GeForce GTX 1660 Ti vs GeForce GTX 580

Intro

Compare all that to the GeForce GTX 580, which has a core clock frequency of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also uses a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
GeForce GTX 580		244 Watts
	Difference: 124 Watts (103%)

Memory Bandwidth

The GeForce GTX 1660 Ti should in theory be quite a bit faster than the GeForce GTX 580 overall. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
GeForce GTX 580		192384 MB/sec
	Difference: 102528 (53%)

Texel Rate

The GeForce GTX 1660 Ti is a lot (more or less 191%) faster with regards to AF than the GeForce GTX 580. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 94592 (191%)

Pixel Rate

The GeForce GTX 1660 Ti will be a lot (more or less 94%) more effective at AA than the GeForce GTX 580, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 34944 (94%)

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 max amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 are processed 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 higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends 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.