GeForce 830M vs GeForce GTX 550 Ti

Intro

Compare that to the GeForce GTX 550 Ti, which comes with GPU core speed of 900 MHz, and 1024 MB of GDDR5 RAM set to run at 1026 MHz through a 192-bit bus. It also is made up of 192 Stream Processors, 32 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 91 Watts (364%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti is 584% quicker than the GeForce 830M overall, due to its greater bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 84096 (584%)

Texel Rate

The GeForce GTX 550 Ti is much (more or less 75%) more effective at texture filtering than the GeForce 830M. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 12336 (75%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 550 Ti is superior to the GeForce 830M, by a large margin. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 13368 (162%)

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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.