GeForce 830M vs GeForce GTX 260 Core 216

Intro

Compare those specs to the GeForce GTX 260 Core 216, which makes use of a 65 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM runs at a frequency of 999 MHz on this card. It features 216 SPUs along with 72 TAUs and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 177 Watts (708%)

Memory Bandwidth

The GeForce GTX 260 Core 216 should theoretically be much faster than the GeForce 830M in general. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 97488 (677%)

Texel Rate

The GeForce GTX 260 Core 216 should be a lot (approximately 152%) more effective at texture filtering than the GeForce 830M. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 25008 (152%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 260 Core 216 is superior to the GeForce 830M, by far. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 7896 (96%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.