GeForce GTX 460 2GB vs GeForce GTX 880M

Intro

Compare that to the GeForce GTX 880M, which features clock speeds of 954 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs along with 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 460 2GB		160 Watts
	Difference: 30 Watts (23%)

Memory Bandwidth

Performance-wise, the GeForce GTX 880M should theoretically be a little bit superior to the GeForce GTX 460 2GB in general. (explain)

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

Texel Rate

The GeForce GTX 880M will be 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

The GeForce GTX 880M is quite a bit (approximately 41%) more effective at AA than the GeForce GTX 460 2GB, and also should be able to handle higher resolutions without slowing down too much. (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: Bandwidth is the largest amount of data (in units of MB 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. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.