GeForce GTX 460 2GB vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which uses a 28 nm design. nVidia has clocked the core speed at 954 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this specific model. It features 1536 SPUs along with 128 Texture Address Units 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 460 2GB		160 Watts
	Difference: 30 Watts (23%)

Memory Bandwidth

Theoretically, the GeForce GTX 880M should perform a bit faster than the GeForce GTX 460 2GB overall. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 12800 (11%)

Texel Rate

The GeForce GTX 880M is quite a bit (more or less 223%) faster with regards to anisotropic filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 84312 (223%)

Pixel Rate

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

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 8928 (41%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.