GeForce GTX 550 Ti vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which features clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 a lot 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 should 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

The GeForce GTX 550 Ti will be quite a bit (about 731%) better at AA than the Radeon HD 5450, and also should be able to handle higher resolutions without slowing down too much. (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 over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most 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 number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.