GeForce 920M vs GeForce 9600 GSO 768MB

Intro

Compare all that to the GeForce 9600 GSO 768MB, which comes with core speeds of 550 MHz on the GPU, and 800 MHz on the 768 MB of GDDR3 memory. It features 96 SPUs as well as 48 Texture Address Units and 12 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 9600 GSO 768MB should be 167% quicker than the GeForce 920M in general, due to its higher bandwidth. (explain)

GeForce 9600 GSO 768MB		38400 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 24000 (167%)

Texel Rate

The GeForce 920M is just a bit (approximately 16%) faster with regards to texture filtering than the GeForce 9600 GSO 768MB. (explain)

GeForce 920M		30528 Mtexels/sec
GeForce 9600 GSO 768MB		26400 Mtexels/sec
	Difference: 4128 (16%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 920M is superior to the GeForce 9600 GSO 768MB, though only just barely. (explain)

GeForce 920M		7632 Mpixels/sec
GeForce 9600 GSO 768MB		6600 Mpixels/sec
	Difference: 1032 (16%)

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 largest amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.