GeForce GT 440 3GB vs GeForce GTS 450

Intro

Compare those specifications to the GeForce GTS 450, which makes use of a 40 nm design. nVidia has clocked the core frequency at 783 MHz. The GDDR5 RAM is set to run at a frequency of 902 MHz on this particular model. It features 192 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTS 450		106 Watts
	Difference: 50 Watts (89%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 should be quite a bit faster than the GeForce GT 440 3GB in general. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 14528 (34%)

Texel Rate

The GeForce GTS 450 will be much (more or less 76%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 10800 (76%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 3GB is a better choice, though not by far. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 1728 (14%)

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 (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.