GeForce 9800 GTX+ vs GeForce GTX 950M

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 90 Watts (164%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GTX+ should in theory be quite a bit superior to the GeForce GTX 950M in general. (explain)

GeForce 9800 GTX+		70400 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 38400 (120%)

Texel Rate

The GeForce 9800 GTX+ should be much (about 29%) better at AF than the GeForce GTX 950M. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 10672 (29%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 950M is a better choice, by a large margin. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 2816 (24%)

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 largest amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.