GeForce GTX 460 SE vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which comes with clock speeds of 1038 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs as well as 96 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 50 Watts (50%)

Memory Bandwidth

In theory, the GeForce GTX 980M should be a bit faster than the GeForce GTX 460 SE overall. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 19200 (18%)

Texel Rate

The GeForce GTX 980M will be much (approximately 219%) better at AF than the GeForce GTX 460 SE. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 68448 (219%)

Pixel Rate

The GeForce GTX 980M is much (about 219%) more effective at anti-aliasing than the GeForce GTX 460 SE, and should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 45632 (219%)

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 (in units of megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.