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GeForce GTX 285 1GB vs Radeon R9 270

Intro

The GeForce GTX 285 1GB features a core clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also features a 512-bit memory bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare all that to the Radeon R9 270, which comes with a core clock frequency of 900 MHz and a GDDR5 memory speed of 1400 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 54 Watts (36%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270 should theoretically be a little bit superior to the GeForce GTX 285 1GB in general. (explain)

Radeon R9 270 179200 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 20224 (13%)

Texel Rate

The Radeon R9 270 should be a lot (more or less 39%) better at anisotropic filtering than the GeForce GTX 285 1GB. (explain)

Radeon R9 270 72000 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 20160 (39%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 270 is superior to the GeForce GTX 285 1GB, by a large margin. (explain)

Radeon R9 270 28800 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 8064 (39%)

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 270

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 270
Manufacturer nVidia AMD
Year January 15, 2009 November 2013
Code Name G200b Curacao Pro
Memory 1024 MB 2048 MB
Core Speed 648 MHz 900 MHz
Memory Speed 2484 MHz 5600 MHz
Power (Max TDP) 204 watts 150 watts
Bandwidth 158976 MB/sec 179200 MB/sec
Texel Rate 51840 Mtexels/sec 72000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 28800 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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon R9 270

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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