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GeForce GTX 285 2GB vs Radeon R9 285

Intro

The GeForce GTX 285 2GB has core speeds of 648 MHz on the GPU, and 1242 MHz on the 2048 MB of GDDR3 RAM. It features 240 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R9 285, which features a clock frequency of 918 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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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 perform 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 is much (about 98%) better at AF 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

The Radeon R9 285 will be quite a bit (approximately 42%) faster with regards to AA than the GeForce GTX 285 2GB, and also will be capable of handling higher resolutions without slowing down too much. (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 maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core 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 applied in a second.

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