Radeon HD 5750 1GB vs Radeon HD 5830

Intro

Compare all that to the Radeon HD 5830, which comes with core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon HD 5830		175 Watts
	Difference: 89 Watts (103%)

Memory Bandwidth

Performance-wise, the Radeon HD 5830 should in theory be much better than the Radeon HD 5750 1GB in general. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 54400 (74%)

Texel Rate

The Radeon HD 5830 should be much (more or less 78%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 19600 (78%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5830 is superior to the Radeon HD 5750 1GB, but it probably won't make a huge difference. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 1600 (14%)

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 maximum amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it must 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 high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, 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 write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.