GeForce GTX 260 Core 216 vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which comes with a GPU core clock speed of 797 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also features 1152 Stream Processors, 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 GTX 260 Core 216		202 Watts
	Difference: 157 Watts (349%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 Core 216 should in theory be quite a bit better than the GeForce GTX 860M in general. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 860M will be quite a bit (more or less 84%) faster with regards to anisotropic filtering than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 35040 (84%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 260 Core 216 is a better choice, and very much so. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 3376 (26%)

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 (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 potential to reach the maximum fill rate.