GeForce GT 430 (OEM) vs Radeon HD 5450

Intro

Compare all that to the Radeon HD 5450, which features GPU core 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 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GT 430 (OEM)		60 Watts
	Difference: 41 Watts (216%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 430 (OEM) should be 125% quicker than the Radeon HD 5450 in general, due to its greater bandwidth. (explain)

GeForce GT 430 (OEM)		28800 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 16000 (125%)

Texel Rate

The GeForce GT 430 (OEM) will be much (more or less 115%) faster with regards to anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GT 430 (OEM)		11200 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 6000 (115%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 430 (OEM) is the winner, though not by far. (explain)

GeForce GT 430 (OEM)		2800 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 200 (8%)

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 information (measured in MB per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its 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 speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.