GeForce GTX 560 Ti 448 vs Geforce GTX 680

Intro

Compare all of that to the Geforce GTX 680, which has core speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 128 Texture Address Units and 32 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 680		7650 points
GeForce GTX 560 Ti 448		4200 points
	Difference: 3450 (82%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 15 Watts (8%)

Memory Bandwidth

Performance-wise, the Geforce GTX 680 should in theory be much better than the GeForce GTX 560 Ti 448 overall. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 48256 (34%)

Texel Rate

The Geforce GTX 680 is a lot (more or less 214%) better at texture filtering than the GeForce GTX 560 Ti 448. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 87776 (214%)

Pixel Rate

The Geforce GTX 680 is just a bit (about 10%) faster with regards to anti-aliasing than the GeForce GTX 560 Ti 448, and also will be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GTX 560 Ti 448		29280 Mpixels/sec
	Difference: 2912 (10%)

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 (counted in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 maximum fill rate.