Geforce GTX 1080 Ti vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which uses a 28 nm design. AMD has set the core speed at 918 MHz. The GDDR5 RAM is set to run at a speed of 1375 MHz on this particular 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 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

As far as performance goes, the Geforce GTX 1080 Ti should in theory be much better 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 will be a lot (about 222%) better at texture 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 FSAA than the Radeon R9 285, and should be capable of handling higher screen resolutions while still performing well. (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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.