GeForce GT 440 1.5GB vs GeForce GT 450 (OEM)

Intro

Compare those specifications to the GeForce GT 450 (OEM), which has GPU core speed of 790 MHz, and 1536 MB of GDDR5 RAM running at 1000 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 TAUs, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 50 Watts (89%)

Memory Bandwidth

The GeForce GT 450 (OEM) should theoretically be much faster than the GeForce GT 440 1.5GB overall. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 52800 (122%)

Texel Rate

The GeForce GT 450 (OEM) should be quite a bit (about 33%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 4704 (33%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GT 440 1.5GB, by a large margin. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 4704 (33%)

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 max amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.