Geforce GTX 680 vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which uses a 28 nm design. AMD has clocked the core frequency at 918 MHz. The GDDR5 memory works at a speed of 1375 MHz on this model. It features 1792 SPUs along with 112 TAUs 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 680		7650 points
	Difference: 850 (11%)

Ethereum Mining Hash Rate

Radeon R9 285		18 Mh/s
Geforce GTX 680		16 Mh/s
	Difference: 2 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
Geforce GTX 680		195 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 680 should in theory be just a bit superior to the Radeon R9 285 overall. (explain)

Geforce GTX 680		192256 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 16256 (9%)

Texel Rate

The Geforce GTX 680 should be quite a bit (more or less 25%) better at AF than the Radeon R9 285. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 25952 (25%)

Pixel Rate

The Geforce GTX 680 is a little bit (approximately 10%) better at full screen anti-aliasing than the Radeon R9 285, and able to handle higher resolutions more effectively. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 2816 (10%)

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 largest amount of data (counted in 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 the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.