GeForce GTX 460 (OEM) vs GeForce GTX 980M

Intro

Compare that to the GeForce GTX 980M, which has clock speeds of 1038 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs along with 96 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the GeForce GTX 980M should perform a small bit faster than the GeForce GTX 460 (OEM) in general. (explain)

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

Texel Rate

The GeForce GTX 980M will be much (approximately 174%) better at texture filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 63248 (174%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980M is the winner, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 460 (OEM)		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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.