GeForce GTX 280 vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which features a core clock frequency of 954 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 280		236 Watts
	Difference: 106 Watts (82%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should be a small bit faster than the GeForce GTX 880M in general. (explain)

GeForce GTX 280		141696 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 13696 (11%)

Texel Rate

The GeForce GTX 880M is much (more or less 154%) better at texture filtering than the GeForce GTX 280. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 280		48160 Mtexels/sec
	Difference: 73952 (154%)

Pixel Rate

If running with a high resolution 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 280		19264 Mpixels/sec
	Difference: 11264 (58%)

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 (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.