GeForce GT 440 1.5GB vs GeForce GTX 460 1GB

Intro

Compare that to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has set the core frequency at 675 MHz. The GDDR5 memory is set to run at a speed of 900 MHz on this card. It features 336 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator 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 in theory be quite a bit superior to the GeForce GT 440 1.5GB in general. (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 quite a bit (about 165%) better 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

The GeForce GTX 460 1GB should be quite a bit (more or less 52%) more effective at AA than the GeForce GT 440 1.5GB, and able to handle higher resolutions while still performing well. (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 largest amount of data (measured in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.