Geforce GTX 1080 Ti vs Radeon R9 285

Intro

Compare all that to the Radeon R9 285, which comes with 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 features 1792 SPUs, 112 Texture Address Units, and 32 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 1080 Ti		27629 points
Radeon R9 285		8500 points
	Difference: 19129 (225%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
Geforce GTX 1080 Ti		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The Geforce GTX 1080 Ti should theoretically perform much faster than the Radeon R9 285 overall. (explain)

Geforce GTX 1080 Ti		495616 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 319616 (182%)

Texel Rate

The Geforce GTX 1080 Ti is much (about 222%) faster with regards to anisotropic filtering than the Radeon R9 285. (explain)

Geforce GTX 1080 Ti		331520 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 228704 (222%)

Pixel Rate

The Geforce GTX 1080 Ti should be much (approximately 343%) more effective at full screen anti-aliasing than the Radeon R9 285, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Geforce GTX 1080 Ti		130240 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 100864 (343%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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