GeForce GT 440 3GB vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which comes with a GPU core clock speed of 725 MHz, and 512 MB of GDDR3 memory running at 800 MHz through a 128-bit bus. It also is comprised of 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation 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 512MB		78 Watts
	Difference: 22 Watts (39%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 3GB should be 69% faster than the Radeon HD 3650 512MB overall, because of its higher data rate. (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 should be quite a bit (more or less 146%) faster with regards to 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 much (about 392%) more effective at AA than the Radeon HD 3650 512MB, and also should be able to handle higher resolutions without losing too much performance. (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 largest amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of 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 in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.