GeForce GT 440 3GB vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which uses a 28 nm design. nVidia has clocked the core speed at 924 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this card. It features 1280 SPUs along with 80 Texture Address Units and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 970M		75 Watts
	Difference: 19 Watts (34%)

Memory Bandwidth

The GeForce GTX 970M, in theory, should be much faster than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 52800 (122%)

Texel Rate

The GeForce GTX 970M is much (more or less 419%) more effective at anisotropic filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 59664 (419%)

Pixel Rate

The GeForce GTX 970M will be much (about 211%) faster with regards to full screen anti-aliasing than the GeForce GT 440 3GB, and will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 30096 (211%)

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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.