GeForce GTX 260 Core 216 vs GeForce GTX 980M

Intro

Compare those specifications to the GeForce GTX 980M, which features GPU core speed of 1038 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 TAUs, 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 260 Core 216		202 Watts
	Difference: 102 Watts (102%)

Memory Bandwidth

Performance-wise, the GeForce GTX 980M should theoretically be a small bit better 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 is quite a bit (more or less 140%) faster with regards to texture filtering 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 quite a bit (about 312%) more effective at AA than the GeForce GTX 260 Core 216, and also should be capable of handling 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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.