GeForce 8500 GT vs GeForce GTX 950M

Intro

Compare all of that to the GeForce GTX 950M, which comes with GPU clock speed of 914 MHz, and 2048 MB of DDR3 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GTX 950M		55 Watts
	Difference: 10 Watts (22%)

Memory Bandwidth

In theory, the GeForce GTX 950M is 150% quicker than the GeForce 8500 GT in general, due to its greater bandwidth. (explain)

GeForce GTX 950M		32000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 19200 (150%)

Texel Rate

The GeForce GTX 950M is a lot (approximately 916%) more effective at texture filtering than the GeForce 8500 GT. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 32960 (916%)

Pixel Rate

The GeForce GTX 950M will be much (approximately 712%) better at anti-aliasing than the GeForce 8500 GT, and should be able to handle higher resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 12824 (712%)

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 (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.