GeForce GTX 560 Ti 448 vs GeForce GTX 980

Intro

Compare all of that to the GeForce GTX 980, which makes use of a 28 nm design. nVidia has set the core speed at 1126 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this model. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

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 980		13552 points
GeForce GTX 560 Ti 448		4200 points
	Difference: 9352 (223%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 45 Watts (27%)

Memory Bandwidth

Theoretically, the GeForce GTX 980 should be quite a bit faster than the GeForce GTX 560 Ti 448 in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 80000 (56%)

Texel Rate

The GeForce GTX 980 is much (approximately 252%) better at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 103136 (252%)

Pixel Rate

The GeForce GTX 980 should be quite a bit (more or less 146%) more effective at anti-aliasing than the GeForce GTX 560 Ti 448, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GTX 560 Ti 448		29280 Mpixels/sec
	Difference: 42784 (146%)

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 data (measured in MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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