GeForce 930M vs GeForce GT 240 GDDR5

Intro

Compare those specifications to the GeForce GT 240 GDDR5, which features GPU clock speed of 550 MHz, and 512 MB of GDDR5 RAM running at 850 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 32 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 240 GDDR5 is 278% quicker than the GeForce 930M overall, due to its greater bandwidth. (explain)

GeForce GT 240 GDDR5		54400 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 40000 (278%)

Texel Rate

The GeForce 930M is much (more or less 27%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 4672 (27%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 930M is superior to the GeForce GT 240 GDDR5, by far. (explain)

GeForce 930M		7424 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 3024 (69%)

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 maximum amount of information (in units of MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics 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 Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.