GeForce GT 440 1.5GB vs Radeon HD 4550 512MB

Intro

Compare all that to the Radeon HD 4550 512MB, which comes with core clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 80(16x5) SPUs along with 8 TAUs and 4 ROPs.

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

Performance-wise, the GeForce GT 440 1.5GB should theoretically 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 is quite a bit (about 197%) better 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 lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon HD 4550 512MB, 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 maximum amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the 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 clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 max fill rate.