GeForce GTX 460 vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which comes with a GPU core clock speed of 650 MHz, and 512 MB of DDR3 RAM set to run at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 460		150 Watts
	Difference: 131 Watts (689%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 should perform quite a bit faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 460 should be a lot (about 627%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 32600 (627%)

Pixel Rate

The GeForce GTX 460 is a lot (about 523%) more effective at anti-aliasing than the Radeon HD 5450, and able to handle higher resolutions better. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 13600 (523%)

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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.