GeForce GT 440 3GB vs GeForce GTX 660

Intro

Compare those specs to the GeForce GTX 660, which has core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 960 SPUs as well as 80 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 660		140 Watts
	Difference: 84 Watts (150%)

Memory Bandwidth

In theory, the GeForce GTX 660 is 234% quicker than the GeForce GT 440 3GB overall, due to its higher data rate. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 100992 (234%)

Texel Rate

The GeForce GTX 660 will be quite a bit (more or less 450%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 64144 (450%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 660 is the winner, by a large margin. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 9264 (65%)

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 (counted in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.