GeForce GT 440 3GB vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which has GPU core speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 720(144x5) SPUs, 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 3GB		56 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 30 Watts (54%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB should be 70% faster than the GeForce GT 440 3GB in general, due to its higher data rate. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 30400 (70%)

Texel Rate

The Radeon HD 5750 512MB will be much (more or less 77%) more effective at anisotropic filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 10944 (77%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is the winner, by far. (explain)

GeForce GT 440 3GB		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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.