GeForce 940M vs GeForce 9600 GSO 768MB

Intro

Compare those specs to the GeForce 9600 GSO 768MB, which features GPU core speed of 550 MHz, and 768 MB of GDDR3 memory set to run at 800 MHz through a 192-bit bus. It also features 96 SPUs, 48 TAUs, and 12 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce 9600 GSO 768MB should perform quite a bit faster than the GeForce 940M in general. (explain)

GeForce 9600 GSO 768MB		38400 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 22400 (140%)

Texel Rate

The GeForce 9600 GSO 768MB should be a bit (approximately 3%) more effective at anisotropic filtering than the GeForce 940M. (explain)

GeForce 9600 GSO 768MB		26400 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 672 (3%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 940M is a better choice, by far. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 9600 GSO 768MB		6600 Mpixels/sec
	Difference: 1976 (30%)

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 MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.