GeForce GTX 260 Core 216 vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which features GPU core speed of 954 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also features 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 72 Watts (55%)

Memory Bandwidth

In theory, the GeForce GTX 880M will be 14% faster than the GeForce GTX 260 Core 216 overall, due to its greater data rate. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 16112 (14%)

Texel Rate

The GeForce GTX 880M is a lot (about 194%) faster with regards to AF than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 80640 (194%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 880M is superior to the GeForce GTX 260 Core 216, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 14400 (89%)

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 max amount of information (counted in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 bandwidth is, the lower the ability to get to the max fill rate.