GeForce GTX 550 Ti vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which comes with a core clock frequency of 650 MHz and a DDR3 memory frequency of 800 MHz. It also makes use of a 64-bit bus, and uses a 40 nm design. It is made up of 80(16x5) SPUs, 8 TAUs, and 4 ROPs.

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

Performance-wise, the GeForce GTX 550 Ti should in theory be a lot better than the Radeon HD 5450 overall. (explain)

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

Texel Rate

The GeForce GTX 550 Ti is a lot (more or less 454%) more effective at anisotropic filtering 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 a lot (about 731%) faster with regards to anti-aliasing than the Radeon HD 5450, and also capable of handling higher screen resolutions while still performing well. (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 data (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.