GeForce GT 440 3GB vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which makes use of a 40 nm design. AMD has set the core speed at 700 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this card. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 30 Watts (54%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB will be 70% quicker than the GeForce GT 440 3GB in general, due to its higher data rate. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 30400 (70%)

Texel Rate

The Radeon HD 5750 1GB should be quite a bit (more or less 77%) more effective at anisotropic filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 5750 1GB		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, and very much so. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5750 1GB		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 MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.