GeForce 930M vs GeForce 9800 GX2

Intro

Compare those specifications to the GeForce 9800 GX2, which makes use of a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 RAM runs at a frequency of 1000 MHz on this particular card. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 9800 GX2 will be 789% faster than the GeForce 930M overall, due to its higher data rate. (explain)

GeForce 9800 GX2		128000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 113600 (789%)

Texel Rate

The GeForce 9800 GX2 is quite a bit (more or less 245%) better at AF than the GeForce 930M. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 54528 (245%)

Pixel Rate

The GeForce 9800 GX2 should be quite a bit (approximately 159%) better at AA than the GeForce 930M, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 11776 (159%)

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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core 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 per second.

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