GeForce GT 440 3GB vs Radeon HD 3650 512MB

Intro

Compare that to the Radeon HD 3650 512MB, which features GPU core speed of 725 MHz, and 512 MB of GDDR3 RAM running at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 22 Watts (39%)

Memory Bandwidth

The GeForce GT 440 3GB should in theory perform much faster than the Radeon HD 3650 512MB in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 17600 (69%)

Texel Rate

The GeForce GT 440 3GB will be quite a bit (approximately 146%) more effective at AF than the Radeon HD 3650 512MB. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 8456 (146%)

Pixel Rate

The GeForce GT 440 3GB should be a lot (more or less 392%) better at full screen anti-aliasing than the Radeon HD 3650 512MB, and capable of handling higher screen resolutions better. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 3650 512MB		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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.