GeForce 930M vs GeForce GT 220 GDDR3

Intro

Compare those specifications to the GeForce GT 220 GDDR3, which makes use of a 40 nm design. nVidia has set the core speed at 625 MHz. The GDDR3 memory is set to run at a speed of 1012 MHz on this model. It features 48 SPUs along with 16 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GT 220 GDDR3 should be much faster than the GeForce 930M in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 17984 (125%)

Texel Rate

The GeForce 930M should be much (approximately 123%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 12272 (123%)

Pixel Rate

The GeForce 930M should be much (about 48%) more effective at anti-aliasing than the GeForce GT 220 GDDR3, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce 930M		7424 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 2424 (48%)

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 max amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.