Radeon HD 3650 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650		78 Watts
Radeon HD 5830		175 Watts
	Difference: 97 Watts (124%)

Memory Bandwidth

The Radeon HD 5830 should theoretically perform a lot faster than the Radeon HD 3650 overall. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 102400 (400%)

Texel Rate

The Radeon HD 5830 should be a lot (more or less 672%) better at AF than the Radeon HD 3650. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 39000 (672%)

Pixel Rate

The Radeon HD 5830 is much (more or less 341%) better at FSAA than the Radeon HD 3650, and also able to handle higher resolutions better. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 9900 (341%)

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 data (counted in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.