GeForce GTX 780 Ti vs Radeon R9 285

Intro

Compare those specs to the Radeon R9 285, which makes use of a 28 nm design. AMD has set the core speed at 918 MHz. The GDDR5 memory runs at a speed of 1375 MHz on this specific card. It features 1792 SPUs as well as 112 TAUs 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 780 Ti		10900 points
Radeon R9 285		8500 points
	Difference: 2400 (28%)

Ethereum Mining Hash Rate

GeForce GTX 780 Ti		19 Mh/s
Radeon R9 285		18 Mh/s
	Difference: 1 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The GeForce GTX 780 Ti should theoretically perform quite a bit faster than the Radeon R9 285 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 160000 (91%)

Texel Rate

The GeForce GTX 780 Ti will be much (about 104%) better at texture filtering than the Radeon R9 285. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 107184 (104%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 780 Ti is the winner, and very much so. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 12624 (43%)

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 max amount of data (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.