GeForce GTX 460 SE vs GeForce GTX 980M

Intro

Compare all of that to the GeForce GTX 980M, which has GPU core speed of 1038 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 Texture Address Units, and 64 Raster Operation 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

The GeForce GTX 980M should in theory 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 should be much (about 219%) better at anisotropic filtering 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 will be much (approximately 219%) better at full screen anti-aliasing than the GeForce GTX 460 SE, and also should be able to handle higher resolutions better. (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 (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 can be applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 memory bandwidth is, the lower the potential to reach the maximum fill rate.