GeForce 830M vs GeForce GTX 590

Intro

Compare all of that to the GeForce GTX 590, which features GPU core speed of 607 MHz, and 1536 MB of GDDR5 memory set to run at 855 MHz through a 384-bit bus. It also is made up of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 590		365 Watts
	Difference: 340 Watts (1360%)

Memory Bandwidth

Performance-wise, the GeForce GTX 590 should theoretically be a lot superior to the GeForce 830M in general. (explain)

GeForce GTX 590		328320 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 313920 (2180%)

Texel Rate

The GeForce GTX 590 is a lot (more or less 372%) more effective at texture filtering than the GeForce 830M. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 61232 (372%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 590 is the winner, by far. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 50040 (608%)

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 (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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