GeForce GT 440 3GB vs GeForce GTX 860M

Intro

Compare all of that to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has set the core frequency at 797 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this specific model. It features 1152 SPUs as well as 96 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 11 Watts (24%)

Memory Bandwidth

In theory, the GeForce GTX 860M should perform much faster than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 20800 (48%)

Texel Rate

The GeForce GTX 860M is much (more or less 437%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 62256 (437%)

Pixel Rate

The GeForce GT 440 3GB should be a small bit (about 12%) better at AA than the GeForce GTX 860M, and able to handle higher screen resolutions more effectively. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 1504 (12%)

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 maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.