GeForce 8800 GT 256MB vs GeForce GTX 950M

Intro

Compare those specifications to the GeForce GTX 950M, which features a clock speed of 914 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce 8800 GT 256MB		105 Watts
	Difference: 50 Watts (91%)

Memory Bandwidth

The GeForce 8800 GT 256MB, in theory, should perform quite a bit faster than the GeForce GTX 950M in general. (explain)

GeForce 8800 GT 256MB		44800 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 12800 (40%)

Texel Rate

The GeForce GTX 950M will be a little bit (more or less 9%) more effective at texture filtering than the GeForce 8800 GT 256MB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 2960 (9%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 950M is superior to the GeForce 8800 GT 256MB, by far. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 5024 (52%)

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 information (counted in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core 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.