GeForce GT 440 1.5GB vs Radeon HD 4550 512MB

Intro

Compare those specifications to the Radeon HD 4550 512MB, which features clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GT 440 1.5GB		56 Watts
	Difference: 31 Watts (124%)

Memory Bandwidth

As far as performance goes, the GeForce GT 440 1.5GB should in theory be much better than the Radeon HD 4550 512MB overall. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 1.5GB will be much (more or less 197%) more effective at texture filtering than the Radeon HD 4550 512MB. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 9456 (197%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 1.5GB is a better choice, by far. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 4550 512MB		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 largest amount of data (counted in MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that can be 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 this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 get to the max fill rate.