GeForce GTS 150 vs GeForce GTX 860M

Intro

Compare those specs to the GeForce GTX 860M, which features core speeds of 797 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1152 SPUs along with 96 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTS 150		141 Watts
	Difference: 96 Watts (213%)

Memory Bandwidth

The GeForce GTX 860M, in theory, should perform quite a bit faster than the GeForce GTS 150 overall. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 32000 (100%)

Texel Rate

The GeForce GTX 860M will be a lot (about 62%) more effective at texture filtering than the GeForce GTS 150. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 29152 (62%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 860M is superior to the GeForce GTS 150, but it probably won't make a huge difference. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 912 (8%)

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 data (counted in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 applied in one 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. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.