GeForce GTX 560 Ti 448 vs Radeon HD 6790

Intro

Compare those specs to the Radeon HD 6790, which features a core clock frequency of 840 MHz and a GDDR5 memory frequency of 1050 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It is made up of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation 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 560 Ti 448		4200 points
Radeon HD 6790		2150 points
	Difference: 2050 (95%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 60 Watts (40%)

Memory Bandwidth

Theoretically, the GeForce GTX 560 Ti 448 should perform just a bit faster than the Radeon HD 6790 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 9600 (7%)

Texel Rate

The GeForce GTX 560 Ti 448 should be a lot (about 22%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 7392 (22%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be a lot (about 118%) more effective at full screen anti-aliasing than the Radeon HD 6790, and also able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 15840 (118%)

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 data (measured in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most 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 number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.