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GeForce GTX 285 2GB vs Radeon R9 270X

Intro

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

Compare those specs to the Radeon R9 270X, which comes with core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 24 Watts (13%)

Memory Bandwidth

In theory, the Radeon R9 270X should be a small bit faster than the GeForce GTX 285 2GB overall. (explain)

Radeon R9 270X 179200 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 20224 (13%)

Texel Rate

The Radeon R9 270X is much (more or less 54%) more effective at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

Radeon R9 270X 80000 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 28160 (54%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 270X is the winner, and very much so. (explain)

Radeon R9 270X 32000 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 11264 (54%)

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 270X

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 270X
Manufacturer nVidia AMD
Year January 15, 2009 October 2013
Code Name G200b Curacao XT
Memory 2048 MB 2048 MB
Core Speed 648 MHz 1000 MHz
Memory Speed 2484 MHz 5600 MHz
Power (Max TDP) 204 watts 180 watts
Bandwidth 158976 MB/sec 179200 MB/sec
Texel Rate 51840 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 240 1280
Texture Mapping Units 80 80
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2800 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics 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 that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon R9 270X

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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