GeForce 8500 GT vs GeForce 940M

Intro

Compare that to the GeForce 940M, which has a GPU core clock speed of 1072 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 64-bit bus. It also features 384 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce 940M should theoretically be a lot better than the GeForce 8500 GT overall. (explain)

GeForce 940M		16000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The GeForce 940M should be a lot (about 615%) faster with regards to AF than the GeForce 8500 GT. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 22128 (615%)

Pixel Rate

The GeForce 940M should be quite a bit (more or less 376%) faster with regards to FSAA than the GeForce 8500 GT, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 6776 (376%)

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 max amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its 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 clock speed of the card. 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 also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.