GeForce GTX 260 Core 216 vs GeForce GTX 880M

Intro

Compare that to the GeForce GTX 880M, which uses a 28 nm design. nVidia has clocked the core frequency at 954 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this card. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 is 14% quicker than the GeForce GTX 260 Core 216 overall, because of its greater bandwidth. (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 much (about 194%) more effective at 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 using high levels of AA is important to you, then the GeForce GTX 880M is a better choice, by a large margin. (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 maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, 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 the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.