GeForce GT 440 3GB vs Radeon HD 3650 256MB

Intro

Compare that to the Radeon HD 3650 256MB, which uses a 55 nm design. AMD has clocked the core frequency at 725 MHz. The DDR2 memory runs at a frequency of 800 MHz on this card. It features 120(24x5) SPUs along with 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 256MB		78 Watts
	Difference: 22 Watts (39%)

Memory Bandwidth

Performance-wise, the GeForce GT 440 3GB should theoretically be a lot better 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 a lot (about 146%) better at texture filtering 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 will be quite a bit (more or less 392%) better at FSAA than the Radeon HD 3650 256MB, and will be capable of handling higher screen resolutions while still performing well. (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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 calculated by multiplying the total number of texture units by the core clock speed of the chip. The better 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 maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.