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GeForce GTX 285 1GB vs Radeon R9 285

Intro

The GeForce GTX 285 1GB uses a 55 nm design. nVidia has set the core frequency at 648 MHz. The GDDR3 RAM runs at a frequency of 1242 MHz on this particular card. It features 240 SPUs along with 80 TAUs and 32 ROPs.

Compare all of that to the Radeon R9 285, which uses a 28 nm design. AMD has clocked the core speed at 918 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this particular model. It features 1792 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285 190 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 14 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon R9 285 should in theory be just a bit superior to the GeForce GTX 285 1GB overall. (explain)

Radeon R9 285 176000 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 17024 (11%)

Texel Rate

The Radeon R9 285 is much (more or less 98%) better at AF than the GeForce GTX 285 1GB. (explain)

Radeon R9 285 102816 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 50976 (98%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 285 is the winner, and very much so. (explain)

Radeon R9 285 29376 Mpixels/sec
GeForce GTX 285 1GB 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 1GB

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 1GB Radeon R9 285
Manufacturer nVidia AMD
Year January 15, 2009 September 2014
Code Name G200b Tonga PRO
Memory 1024 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: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

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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