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Radeon R7 M260X vs Radeon R9 M385X

Intro

The Radeon R7 M260X has a clock speed of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Compare those specs to the Radeon R9 M385X, which uses a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 memory works at a frequency of 1500 MHz on this card. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M385X should be much faster than the Radeon R7 M260X overall. (explain)

Radeon R9 M385X 96000 MB/sec
Radeon R7 M260X 64000 MB/sec
Difference: 32000 (50%)

Texel Rate

The Radeon R9 M385X will be much (about 211%) more effective at anisotropic filtering than the Radeon R7 M260X. (explain)

Radeon R9 M385X 61600 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 41800 (211%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M385X is a better choice, and very much so. (explain)

Radeon R9 M385X 17600 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 11000 (167%)

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 M260X

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 M260X Radeon R9 M385X
Manufacturer AMD AMD
Year June 2014 2015
Code Name Opal Bonaire
Memory 2048 MB 4096 MB
Core Speed 825 MHz 1100 MHz
Memory Speed 4000 MHz 6000 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 64000 MB/sec 96000 MB/sec
Texel Rate 19800 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 384 896
Texture Mapping Units 24 56
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x8 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R7 M260X

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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