GeForce GT 440 3GB vs Radeon HD 3650 256MB

Intro

Compare all that to the Radeon HD 3650 256MB, which has core clock speeds of 725 MHz on the GPU, and 800 MHz on the 256 MB of DDR2 memory. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 3650 256MB		78 Watts
	Difference: 22 Watts (39%)

Memory Bandwidth

In theory, the GeForce GT 440 3GB should be quite a bit faster than the Radeon HD 3650 256MB in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 17600 (69%)

Texel Rate

The GeForce GT 440 3GB is quite a bit (more or less 146%) faster with regards to AF than the Radeon HD 3650 256MB. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 8456 (146%)

Pixel Rate

The GeForce GT 440 3GB should be a lot (more or less 392%) faster with regards to full screen anti-aliasing than the Radeon HD 3650 256MB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 11356 (392%)

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 megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.