GeForce GTX 470 vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which features GPU core speed of 650 MHz, and 512 MB of DDR3 memory running at 800 MHz through a 64-bit bus. It also features 80(16x5) SPUs, 8 TAUs, 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 470		215 Watts
	Difference: 196 Watts (1032%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 470 should in theory be quite a bit superior to the Radeon HD 5450 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 121120 (946%)

Texel Rate

The GeForce GTX 470 will be quite a bit (approximately 554%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 28792 (554%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 470 is superior to the Radeon HD 5450, by far. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 21680 (834%)

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 max amount of data (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units 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 in a second.

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