GeForce 830M vs GeForce 930M

Intro

Compare all of that to the GeForce 930M, which makes use of a 28 nm design. nVidia has clocked the core speed at 928 MHz. The DDR3 memory works at a frequency of 900 MHz on this card. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

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

Texel Rate

The GeForce 930M should be quite a bit (approximately 35%) better at anisotropic filtering than the GeForce 830M. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 5808 (35%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 830M is a better choice, not by a very large margin though. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 808 (11%)

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 max amount of information (counted in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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