Radeon HD 4350 vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is made up of 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon HD 5830		175 Watts
	Difference: 153 Watts (695%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should perform quite a bit faster than the Radeon HD 4350 in general. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 120000 (1500%)

Texel Rate

The Radeon HD 5830 is a lot (about 874%) better at anisotropic filtering than the Radeon HD 4350. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 40200 (874%)

Pixel Rate

The Radeon HD 5830 should be quite a bit (about 457%) more effective at full screen anti-aliasing than the Radeon HD 4350, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 10500 (457%)

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 (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, 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 most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.