GeForce 940M vs GeForce 9600 GSO 384MB

Intro

Compare all of that to the GeForce 9600 GSO 384MB, which has a clock frequency of 550 MHz and a GDDR3 memory frequency of 800 MHz. It also uses a 192-bit memory bus, and uses a 65 nm design. It features 96 SPUs, 48 Texture Address Units, and 12 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 9600 GSO 384MB, in theory, should perform quite a bit faster than the GeForce 940M overall. (explain)

GeForce 9600 GSO 384MB		38400 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 22400 (140%)

Texel Rate

The GeForce 9600 GSO 384MB is a small bit (about 3%) more effective at texture filtering than the GeForce 940M. (explain)

GeForce 9600 GSO 384MB		26400 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 672 (3%)

Pixel Rate

The GeForce 940M is quite a bit (approximately 30%) more effective at anti-aliasing than the GeForce 9600 GSO 384MB, and able to handle higher resolutions while still performing well. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 9600 GSO 384MB		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 max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.