GeForce 830M vs GeForce GTX 295

Intro

Compare those specs to the GeForce GTX 295, which uses a 55 nm design. nVidia has clocked the core frequency at 576 MHz. The GDDR3 RAM runs at a frequency of 999 MHz on this particular card. It features 240 SPUs along with 80 TAUs and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 295		289 Watts
	Difference: 264 Watts (1056%)

Memory Bandwidth

In theory, the GeForce GTX 295 should be much faster than the GeForce 830M overall. (explain)

GeForce GTX 295		223776 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 209376 (1454%)

Texel Rate

The GeForce GTX 295 should be a lot (approximately 460%) faster with regards to anisotropic filtering than the GeForce 830M. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 75696 (460%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 295 is a better choice, and very much so. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 24024 (292%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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