GeForce GTX 560 Ti vs Radeon R9 285

Intro

Compare all that to the Radeon R9 285, which has a GPU core clock speed of 918 MHz, and 2048 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 32 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

Radeon R9 285		8500 points
GeForce GTX 560 Ti		3466 points
	Difference: 5034 (145%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
Radeon R9 285		190 Watts
	Difference: 20 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 285 should be 37% quicker than the GeForce GTX 560 Ti overall, due to its higher data rate. (explain)

Radeon R9 285		176000 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 47744 (37%)

Texel Rate

The Radeon R9 285 will be much (more or less 95%) more effective at texture filtering than the GeForce GTX 560 Ti. (explain)

Radeon R9 285		102816 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 50208 (95%)

Pixel Rate

The Radeon R9 285 is just a bit (more or less 12%) more effective at full screen anti-aliasing than the GeForce GTX 560 Ti, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 285		29376 Mpixels/sec
GeForce GTX 560 Ti		26304 Mpixels/sec
	Difference: 3072 (12%)

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 largest amount of data (counted in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.