GeForce 825M vs GeForce 930M

Intro

Compare that to the GeForce 930M, which comes with GPU clock speed of 928 MHz, and 2048 MB of DDR3 memory running at 900 MHz through a 64-bit bus. It also features 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should perform exactly the same. (explain)

Texel Rate

The GeForce 930M will be a lot (approximately 64%) more effective at anisotropic filtering than the GeForce 825M. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce 825M		13600 Mtexels/sec
	Difference: 8672 (64%)

Pixel Rate

The GeForce 930M should be a small bit (more or less 9%) better at AA than the GeForce 825M, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 930M		7424 Mpixels/sec
GeForce 825M		6800 Mpixels/sec
	Difference: 624 (9%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of 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 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.