GeForce GTX 260 Core 216 vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which has a clock speed of 1038 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It features 1536 SPUs, 96 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 102 Watts (102%)

Memory Bandwidth

The GeForce GTX 980M should theoretically be a little bit faster than the GeForce GTX 260 Core 216 overall. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 16112 (14%)

Texel Rate

The GeForce GTX 980M should be quite a bit (approximately 140%) better at AF than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 58176 (140%)

Pixel Rate

The GeForce GTX 980M should be much (more or less 312%) better at FSAA than the GeForce GTX 260 Core 216, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 50304 (312%)

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 max amount of information (counted in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.