GeForce 930M vs GeForce GTX 285 2GB

Intro

Compare those specs to the GeForce GTX 285 2GB, which features GPU clock speed of 648 MHz, and 2048 MB of GDDR3 RAM running at 1242 MHz through a 512-bit bus. It also is made up of 240 Stream Processors, 80 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB will be 1004% faster than the GeForce 930M in general, because of its higher data rate. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 144576 (1004%)

Texel Rate

The GeForce GTX 285 2GB should be much (more or less 133%) better at texture filtering than the GeForce 930M. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 29568 (133%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 285 2GB is the winner, and very much so. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 13312 (179%)

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 data (counted in MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.