GeForce GTX 460 vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which uses a 40 nm design. AMD has set the core speed at 650 MHz. The DDR3 memory is set to run at a frequency of 800 MHz on this particular model. 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 460		150 Watts
	Difference: 131 Watts (689%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 should theoretically be much better than the Radeon HD 5450 overall. (explain)

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

Texel Rate

The GeForce GTX 460 is a lot (about 627%) faster with regards to 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

If using a high screen resolution is important to you, then the GeForce GTX 460 is a better choice, by a large margin. (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 largest amount of information (counted in megabytes per second) that can be transferred past 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 type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.