Radeon HD 5830 vs Radeon HD 6450 (OEM)

Intro

Compare those specs to the Radeon HD 6450 (OEM), which makes use of a 40 nm design. AMD has set the core speed at 625 MHz. The GDDR3 memory works at a frequency of 800 MHz on this model. It features 160 SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon HD 5830		175 Watts
	Difference: 144 Watts (465%)

Memory Bandwidth

The Radeon HD 5830 should theoretically perform a lot faster than the Radeon HD 6450 (OEM) in general. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 115200 (900%)

Texel Rate

The Radeon HD 5830 will be a lot (more or less 796%) faster with regards to texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 39800 (796%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5830 is the winner, and very much so. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 10300 (412%)

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 data (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.