GeForce GT 440 3GB vs GeForce GTX 550 Ti

Intro

Compare those specifications to the GeForce GTX 550 Ti, which has core clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs along with 32 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 60 Watts (107%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti should be 128% quicker than the GeForce GT 440 3GB overall, due to its higher bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 55296 (128%)

Texel Rate

The GeForce GTX 550 Ti should be quite a bit (more or less 102%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 14544 (102%)

Pixel Rate

The GeForce GTX 550 Ti should be much (about 52%) more effective at full screen anti-aliasing than the GeForce GT 440 3GB, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GT 440 3GB		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 maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.