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Radeon R7 260X vs Radeon R9 M280X

Intro

The Radeon R7 260X features a clock speed of 1100 MHz and a GDDR5 memory speed of 1625 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R9 M280X, which uses a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1375 MHz on this specific model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X 75 Watts
Radeon R7 260X 115 Watts
Difference: 40 Watts (53%)

Memory Bandwidth

In theory, the Radeon R7 260X will be 18% faster than the Radeon R9 M280X overall, due to its higher bandwidth. (explain)

Radeon R7 260X 104000 MB/sec
Radeon R9 M280X 88000 MB/sec
Difference: 16000 (18%)

Texel Rate

The Radeon R7 260X should be quite a bit (approximately 22%) faster with regards to AF than the Radeon R9 M280X. (explain)

Radeon R7 260X 61600 Mtexels/sec
Radeon R9 M280X 50400 Mtexels/sec
Difference: 11200 (22%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R7 260X is a better choice, by a large margin. (explain)

Radeon R7 260X 17600 Mpixels/sec
Radeon R9 M280X 14400 Mpixels/sec
Difference: 3200 (22%)

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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Radeon R7 260X

Amazon.com

Check prices at:

Radeon R9 M280X

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 Radeon R7 260X Radeon R9 M280X
Manufacturer AMD AMD
Year October 2013 Feb 9 2015
Code Name Bonaire XTX Saturn XT
Memory 2048 MB 4096 MB
Core Speed 1100 MHz 900 MHz
Memory Speed 6500 MHz 5500 MHz
Power (Max TDP) 115 watts 75 watts
Bandwidth 104000 MB/sec 88000 MB/sec
Texel Rate 61600 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 896 896
Texture Mapping Units 56 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2080 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 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 texture map elements (texels) that are applied per second. This is calculated 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon R7 260X

Amazon.com

Check prices at:

Radeon R9 M280X

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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