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Geforce GTX 680 vs Radeon R9 285

Intro

The Geforce GTX 680 comes with a core clock speed of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It features 1536 SPUs, 128 TAUs, and 32 ROPs.

Compare those specs to the Radeon R9 285, which comes with clock speeds of 918 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

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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

The Geforce GTX 680 should theoretically perform a small bit faster than the Radeon R9 285 in general. (explain)

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

Texel Rate

The Geforce GTX 680 will be much (more or less 25%) faster with regards to 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 should be a bit (about 10%) more effective at anti-aliasing than the Radeon R9 285, and should be capable of handling 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

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Geforce GTX 680

Amazon.com

Check prices at:

Radeon R9 285

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Geforce GTX 680 Radeon R9 285
Manufacturer nVidia AMD
Year March 2012 September 2014
Code Name GK104 Tonga PRO
Memory 2048 MB 2048 MB
Core Speed 1006 MHz 918 MHz
Memory Speed 6008 MHz 5500 MHz
Power (Max TDP) 195 watts 190 watts
Bandwidth 192256 MB/sec 176000 MB/sec
Texel Rate 128768 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 1536 1792
Texture Mapping Units 128 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 5000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Geforce GTX 680

Amazon.com

Check prices at:

Radeon R9 285

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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