GeForce GTX 260 Core 216 vs GeForce GTX 870M

Intro

Compare those specs to the GeForce GTX 870M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 941 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this model. It features 1344 SPUs as well as 112 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 92 Watts (84%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 Core 216 should be 17% faster than the GeForce GTX 870M overall, due to its greater bandwidth. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 15888 (17%)

Texel Rate

The GeForce GTX 870M is a lot (approximately 154%) faster with regards to AF than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 63920 (154%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 870M is the winner, and very much so. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 6456 (40%)

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: Bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.