GeForce GTS 150 vs GeForce GTX 880M

Intro

Compare those specs to the GeForce GTX 880M, which uses a 28 nm design. nVidia has set the core frequency at 954 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this card. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTS 150		141 Watts
	Difference: 11 Watts (8%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M should be 300% faster than the GeForce GTS 150 in general, due to its greater data rate. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 96000 (300%)

Texel Rate

The GeForce GTX 880M is a lot (about 158%) better at anisotropic filtering than the GeForce GTS 150. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 74752 (158%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 880M is a better choice, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 18688 (158%)

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 megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 can be applied per second. This number is worked out by multiplying the total texture units 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 that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core 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 also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.