GeForce 930M vs GeForce GT 230

Intro

Compare all that to the GeForce GT 230, which has GPU clock speed of 550 MHz, and 1536 MB of DDR3 memory running at 800 MHz through a 192-bit bus. It also is comprised of 32 Stream Processors, 16 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GT 230 should in theory be a lot superior to the GeForce 930M in general. (explain)

GeForce GT 230		38400 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 24000 (167%)

Texel Rate

The GeForce 930M should be much (more or less 153%) more effective at anisotropic filtering than the GeForce GT 230. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 13472 (153%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 930M is a better choice, by far. (explain)

GeForce 930M		7424 Mpixels/sec
GeForce GT 230		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 max amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that are applied in one second. This 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 rate is also dependant 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.