GeForce GTX 560 Ti 448 vs GeForce GTX 980M

Intro

Compare that to the GeForce GTX 980M, which uses a 28 nm design. nVidia has clocked the core speed at 1038 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this card. It features 1536 SPUs along with 96 TAUs and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 980M		9476 points
GeForce GTX 560 Ti 448		4200 points
	Difference: 5276 (126%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 110 Watts (110%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti 448 should in theory be a bit better than the GeForce GTX 980M overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 16000 (13%)

Texel Rate

The GeForce GTX 980M is much (more or less 143%) more effective at texture filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 58656 (143%)

Pixel Rate

The GeForce GTX 980M will be a lot (about 127%) more effective at anti-aliasing than the GeForce GTX 560 Ti 448, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 560 Ti 448		29280 Mpixels/sec
	Difference: 37152 (127%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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