GeForce GTX 285 2GB vs GeForce GTX 950M

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 149 Watts (271%)

Memory Bandwidth

The GeForce GTX 285 2GB should in theory perform much faster than the GeForce GTX 950M in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 126976 (397%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (approximately 42%) better at anisotropic filtering than the GeForce GTX 950M. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 15280 (42%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 285 2GB is a better choice, and very much so. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 6112 (42%)

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 (counted in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.