GeForce GTX 560 Ti vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which comes with a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 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 560 Ti		3466 points
Radeon HD 6790		2150 points
	Difference: 1316 (61%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 20 Watts (13%)

Memory Bandwidth

In theory, the Radeon HD 6790 should be 5% quicker than the GeForce GTX 560 Ti in general, due to its higher data rate. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 6144 (5%)

Texel Rate

The GeForce GTX 560 Ti will be a lot (approximately 57%) faster with regards to AF than the Radeon HD 6790. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 19008 (57%)

Pixel Rate

The GeForce GTX 560 Ti should be much (more or less 96%) faster with regards to FSAA than the Radeon HD 6790, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 12864 (96%)

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 (counted in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.