GeForce 9800 GTX vs GeForce GTX 950M

Intro

Compare those specs to the GeForce GTX 950M, which has core clock speeds of 914 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce 9800 GTX		140 Watts
	Difference: 85 Watts (155%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX will be 120% faster than the GeForce GTX 950M in general, due to its higher data rate. (explain)

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

Texel Rate

The GeForce 9800 GTX will be a bit (about 18%) faster with regards to anisotropic filtering than the GeForce GTX 950M. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 6640 (18%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 950M is a better choice, and very much so. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 3824 (35%)

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 information (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.