GeForce GT 440 3GB vs GeForce GTX 860M

Intro

Compare all of that to the GeForce GTX 860M, which features a clock frequency of 797 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 1152 SPUs, 96 Texture Address Units, and 16 Raster Operation Units.

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

The GeForce GTX 860M should theoretically be quite a bit faster than the GeForce GT 440 3GB in general. (explain)

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

Texel Rate

The GeForce GTX 860M should be much (about 437%) better at texture 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

If using a high screen resolution is important to you, then the GeForce GT 440 3GB is the winner, though only just barely. (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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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 can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of 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 is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.