GeForce 9500 GT 1GB GDDR3 vs GeForce GTX 950M

Intro

Compare those specs to the GeForce GTX 950M, which has a core clock speed of 914 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3		50 Watts
GeForce GTX 950M		55 Watts
	Difference: 5 Watts (10%)

Memory Bandwidth

In theory, the GeForce GTX 950M should be 25% faster than the GeForce 9500 GT 1GB GDDR3 overall, because of its higher bandwidth. (explain)

GeForce GTX 950M		32000 MB/sec
GeForce 9500 GT 1GB GDDR3		25600 MB/sec
	Difference: 6400 (25%)

Texel Rate

The GeForce GTX 950M should be a lot (about 315%) faster with regards to AF than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 27760 (315%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 950M is superior to the GeForce 9500 GT 1GB GDDR3, and very much so. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
	Difference: 10224 (232%)

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 data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the 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 amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.