GeForce 830M vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which has 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 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon HD 5830		175 Watts
	Difference: 150 Watts (600%)

Memory Bandwidth

The Radeon HD 5830, in theory, should be a lot faster than the GeForce 830M in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 113600 (789%)

Texel Rate

The Radeon HD 5830 is much (more or less 172%) better at texture filtering than the GeForce 830M. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 28336 (172%)

Pixel Rate

The Radeon HD 5830 will be quite a bit (about 55%) faster with regards to full screen anti-aliasing than the GeForce 830M, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 4568 (55%)

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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.