GeForce 930M vs GeForce GTX 580 3GB

Intro

Compare all that to the GeForce GTX 580 3GB, which makes use of a 40 nm design. nVidia has set the core speed at 772 MHz. The GDDR5 RAM runs at a frequency of 1002 MHz on this specific card. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 580 3GB should in theory be quite a bit better than the GeForce 930M overall. (explain)

GeForce GTX 580 3GB		192384 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 177984 (1236%)

Texel Rate

The GeForce GTX 580 3GB is a lot (about 122%) more effective at AF than the GeForce 930M. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 27136 (122%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 3GB is the winner, and very much so. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 29632 (399%)

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 information (counted in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.