GeForce 8800 GT 256MB vs GeForce 940M

Intro

Compare those specs to the GeForce 940M, which comes with GPU core speed of 1072 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also is made up of 384 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 GT 256MB will be 180% quicker than the GeForce 940M in general, because of its greater bandwidth. (explain)

GeForce 8800 GT 256MB		44800 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 28800 (180%)

Texel Rate

The GeForce 8800 GT 256MB should be much (more or less 31%) faster with regards to anisotropic filtering than the GeForce 940M. (explain)

GeForce 8800 GT 256MB		33600 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 7872 (31%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 8800 GT 256MB is a better choice, though only just barely. (explain)

GeForce 8800 GT 256MB		9600 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 1024 (12%)

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 megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few 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.