GeForce GT 440 1.5GB vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which comes with GPU clock speed of 675 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also is comprised of 336 Stream Processors, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 104 Watts (186%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 1GB should theoretically be quite a bit better than the GeForce GT 440 1.5GB overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 72000 (167%)

Texel Rate

The GeForce GTX 460 1GB should be much (approximately 165%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 23544 (165%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 1GB is a better choice, by a large margin. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 7344 (52%)

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 max amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the bandwidth is, the lower the potential to get to the max fill rate.