GeForce GT 440 1.5GB vs Radeon HD 4550 256MB

Intro

Compare those specs to the Radeon HD 4550 256MB, which has a GPU core clock speed of 600 MHz, and 256 MB of DDR3 RAM set to run at 800 MHz through a 64-bit bus. It also is comprised of 80(16x5) Stream Processors, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB		25 Watts
GeForce GT 440 1.5GB		56 Watts
	Difference: 31 Watts (124%)

Memory Bandwidth

In theory, the GeForce GT 440 1.5GB is 238% faster than the Radeon HD 4550 256MB overall, due to its higher bandwidth. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
Radeon HD 4550 256MB		12800 MB/sec
	Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 1.5GB should be quite a bit (about 197%) better at anisotropic filtering than the Radeon HD 4550 256MB. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
Radeon HD 4550 256MB		4800 Mtexels/sec
	Difference: 9456 (197%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon HD 4550 256MB, and very much so. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 4550 256MB		2400 Mpixels/sec
	Difference: 11856 (494%)

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 transferred past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.