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Radeon R7 260X vs Radeon R9 M385X

Intro

The Radeon R7 260X uses a 28 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 RAM works at a speed of 1625 MHz on this card. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Compare that to the Radeon R9 M385X, which has core clock speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 260X should be 8% quicker than the Radeon R9 M385X in general, due to its higher data rate. (explain)

Radeon R7 260X 104000 MB/sec
Radeon R9 M385X 96000 MB/sec
Difference: 8000 (8%)

Texel Rate

Both cards have exactly the same texel fill rate, so theoretically they should be equally good at at AF. (explain)

Pixel Rate

Both cards have the exact same pixel rate, so theoretically they should perform equally good at at AA, and be capable of handling the same screen resolutions. (explain)

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 M385X

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 M385X
Manufacturer AMD AMD
Year October 2013 2015
Code Name Bonaire XTX Bonaire
Memory 2048 MB 4096 MB
Core Speed 1100 MHz 1100 MHz
Memory Speed 6500 MHz 6000 MHz
Power (Max TDP) 115 watts (Unknown) watts
Bandwidth 104000 MB/sec 96000 MB/sec
Texel Rate 61600 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 17600 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 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate 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 drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R7 260X

Amazon.com

Check prices at:

Radeon R9 M385X

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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