GeForce GT 220 GDDR3 vs GeForce GT 440 3GB

Intro

Compare all that to the GeForce GT 440 3GB, which makes use of a 40 nm design. nVidia has set the core speed at 594 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this particular card. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 2 Watts (4%)

Memory Bandwidth

The GeForce GT 440 3GB should in theory perform quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 10816 (33%)

Texel Rate

The GeForce GT 440 3GB should be a lot (about 43%) faster with regards to texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 4256 (43%)

Pixel Rate

The GeForce GT 440 3GB will be a lot (more or less 185%) faster with regards to anti-aliasing than the GeForce GT 220 GDDR3, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 9256 (185%)

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 (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed 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 the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock 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 rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.