Geforce GTX 1080 Ti vs Radeon R9 285

Intro

Compare those specs to the Radeon R9 285, which comes with a core clock speed of 918 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised 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

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

Performance-wise, the Geforce GTX 1080 Ti should in theory be much superior to the Radeon R9 285 in general. (explain)

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

Texel Rate

The Geforce GTX 1080 Ti will be much (approximately 222%) more effective at AF 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 is much (more or less 343%) faster with regards to FSAA than the Radeon R9 285, and also able to handle higher screen resolutions more effectively. (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 (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.