GeForce 930M vs GeForce GT 230

Intro

Compare those specifications to the GeForce GT 230, which makes use of a 40 nm design. nVidia has clocked the core frequency at 550 MHz. The DDR3 RAM works at a speed of 800 MHz on this particular model. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GT 230 should theoretically 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 will be a lot (approximately 153%) faster with regards to anisotropic filtering than the GeForce GT 230. (explain)

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

Pixel Rate

The GeForce 930M is quite a bit (more or less 69%) better at AA than the GeForce GT 230, and also will be able to handle higher resolutions more effectively. (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 data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.