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Geforce GTX 670 vs Radeon R9 285

Intro

The Geforce GTX 670 makes use of a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 RAM works at a speed of 1500 MHz on this particular model. It features 1344 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon R9 285, which makes use of a 28 nm design. AMD has clocked the core frequency at 918 MHz. The GDDR5 RAM is set to run at a speed of 1375 MHz on this specific model. It features 1792 SPUs along with 112 Texture Address Units and 32 ROPs.

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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 670 7351 points
Difference: 1149 (16%)

Ethereum Mining Hash Rate

Radeon R9 285 18 Mh/s
Geforce GTX 670 13 Mh/s
Difference: 5 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
Radeon R9 285 190 Watts
Difference: 20 Watts (12%)

Memory Bandwidth

In theory, the Geforce GTX 670 should perform a bit faster than the Radeon R9 285 in general. (explain)

Geforce GTX 670 192000 MB/sec
Radeon R9 285 176000 MB/sec
Difference: 16000 (9%)

Texel Rate

The Radeon R9 285 is a bit (more or less 0%) more effective at AF than the Geforce GTX 670. (explain)

Radeon R9 285 102816 Mtexels/sec
Geforce GTX 670 102480 Mtexels/sec
Difference: 336 (0%)

Pixel Rate

The Radeon R9 285 is a bit (approximately 0%) more effective at full screen anti-aliasing than the Geforce GTX 670, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 285 29376 Mpixels/sec
Geforce GTX 670 29280 Mpixels/sec
Difference: 96 (0%)

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 670

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 670 Radeon R9 285
Manufacturer nVidia AMD
Year May 2012 September 2014
Code Name GK104 Tonga PRO
Memory 2048 MB 2048 MB
Core Speed 915 MHz 918 MHz
Memory Speed 6000 MHz 5500 MHz
Power (Max TDP) 170 watts 190 watts
Bandwidth 192000 MB/sec 176000 MB/sec
Texel Rate 102480 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 1344 1792
Texture Mapping Units 112 112
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 maximum amount of data (in units of MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Geforce GTX 670

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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