GeForce GTX 550 Ti vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which has core speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 97 Watts (511%)

Memory Bandwidth

The GeForce GTX 550 Ti should in theory be much faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 85696 (670%)

Texel Rate

The GeForce GTX 550 Ti will be much (about 454%) faster with regards to AF than the Radeon HD 5450. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 23600 (454%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 550 Ti is superior to the Radeon HD 5450, by far. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 19000 (731%)

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 (in units of MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.