GeForce GT 440 1.5GB vs Radeon HD 5750 512MB

Intro

Compare that to the Radeon HD 5750 512MB, which has GPU core speed of 700 MHz, and 512 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 30 Watts (54%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB should perform quite a bit faster than the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 30400 (70%)

Texel Rate

The Radeon HD 5750 512MB will be a lot (about 77%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 10944 (77%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon HD 5750 512MB, and very much so. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 3056 (27%)

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: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.