GeForce GTX 260 vs GeForce GTX 880M

Intro

Compare all that to the GeForce GTX 880M, which has GPU core speed of 954 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 260		182 Watts
	Difference: 52 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M is 14% faster than the GeForce GTX 260 in general, due to its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 880M will be a lot (approximately 231%) better at texture filtering than the GeForce GTX 260. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 85248 (231%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 880M is the winner, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 260		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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.