GeForce 8600 GS (OEM) vs GeForce 940M

Intro

Compare those specs to the GeForce 940M, which comes with a clock speed of 1072 MHz and a DDR3 memory speed of 1000 MHz. It also features a 64-bit bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce 940M should be a lot faster than the GeForce 8600 GS (OEM) overall. (explain)

GeForce 940M		16000 MB/sec
GeForce 8600 GS (OEM)		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The GeForce 940M is much (approximately 198%) faster with regards to anisotropic filtering than the GeForce 8600 GS (OEM). (explain)

GeForce 940M		25728 Mtexels/sec
GeForce 8600 GS (OEM)		8640 Mtexels/sec
	Difference: 17088 (198%)

Pixel Rate

The GeForce 940M will be much (more or less 99%) better at full screen anti-aliasing than the GeForce 8600 GS (OEM), and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 8600 GS (OEM)		4320 Mpixels/sec
	Difference: 4256 (99%)

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 (measured in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.