GeForce GT 440 1.5GB vs GeForce GTX 460 1GB

Intro

Compare those specifications to the GeForce GTX 460 1GB, which uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 memory is set to run at a frequency of 900 MHz on this model. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.

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

In theory, the GeForce GTX 460 1GB should be 167% quicker than the GeForce GT 440 1.5GB overall, because of its greater bandwidth. (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 is a lot (approximately 165%) more effective at texture 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 using high levels of AA is important to you, then the GeForce GTX 460 1GB is a better choice, by far. (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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.