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GeForce GTX 285 2GB vs Radeon R9 285

Intro

The GeForce GTX 285 2GB uses a 55 nm design. nVidia has set the core speed at 648 MHz. The GDDR3 RAM works at a speed of 1242 MHz on this specific model. It features 240 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Radeon R9 285, which makes use of a 28 nm design. AMD has set the core frequency at 918 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285 190 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 14 Watts (7%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 285 should be a little bit faster than the GeForce GTX 285 2GB in general. (explain)

Radeon R9 285 176000 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 17024 (11%)

Texel Rate

The Radeon R9 285 will be a lot (more or less 98%) better at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

Radeon R9 285 102816 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 50976 (98%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 285 is superior to the GeForce GTX 285 2GB, by a large margin. (explain)

Radeon R9 285 29376 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 8640 (42%)

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 285 2GB

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 285 2GB Radeon R9 285
Manufacturer nVidia AMD
Year January 15, 2009 September 2014
Code Name G200b Tonga PRO
Memory 2048 MB 2048 MB
Core Speed 648 MHz 918 MHz
Memory Speed 2484 MHz 5500 MHz
Power (Max TDP) 204 watts 190 watts
Bandwidth 158976 MB/sec 176000 MB/sec
Texel Rate 51840 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 240 1792
Texture Mapping Units 80 112
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 5000 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at 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 card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

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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