GeForce 930M vs GeForce GT 320

Intro

Compare those specs to the GeForce GT 320, which uses a 40 nm design. nVidia has clocked the core frequency at 540 MHz. The GDDR3 memory runs at a frequency of 790 MHz on this specific card. It features 72 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GT 320 should in theory be much superior to the GeForce 930M overall. (explain)

GeForce GT 320		25280 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 10880 (76%)

Texel Rate

The GeForce 930M is much (more or less 72%) more effective at AF than the GeForce GT 320. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 9312 (72%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 930M is a better choice, by far. (explain)

GeForce 930M		7424 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 3104 (72%)

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 information (in units of megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount 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 worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.