GeForce GTX 460 2GB vs GeForce GTX 960M

Intro

Compare all that to the GeForce GTX 960M, which comes with core clock speeds of 1096 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 95 Watts (146%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 2GB should perform much faster than the GeForce GTX 960M overall. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 960M is a small bit (about 16%) faster with regards to AF than the GeForce GTX 460 2GB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 6040 (16%)

Pixel Rate

The GeForce GTX 460 2GB will be much (more or less 23%) better at AA than the GeForce GTX 960M, and will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 4064 (23%)

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 maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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