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Radeon R5 M255 vs Radeon R7 M260

Intro

The Radeon R5 M255 features a clock frequency of 940 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 64-bit memory bus, and makes use of a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon R7 M260, which comes with a clock frequency of 715 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 64-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so theoretically they should have identical performance. (explain)

Texel Rate

The Radeon R5 M255 is just a bit (about 10%) better at AF than the Radeon R7 M260. (explain)

Radeon R5 M255 18800 Mtexels/sec
Radeon R7 M260 17160 Mtexels/sec
Difference: 1640 (10%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R5 M255 is a better choice, by a large margin. (explain)

Radeon R5 M255 7520 Mpixels/sec
Radeon R7 M260 5720 Mpixels/sec
Difference: 1800 (31%)

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 R5 M255

Amazon.com

Check prices at:

Radeon R7 M260

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 R5 M255 Radeon R7 M260
Manufacturer AMD AMD
Year June 2014 June 2014
Code Name Jet Pro Opal/Topaz
Memory 2048 MB 2048 MB
Core Speed 940 MHz 715 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 16000 MB/sec 16000 MB/sec
Texel Rate 18800 Mtexels/sec 17160 Mtexels/sec
Pixel Rate 7520 Mpixels/sec 5720 Mpixels/sec
Unified Shaders 320 384
Texture Mapping Units 20 24
Render Output Units 8 8
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x8 PCIe 3.0 x8
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon R5 M255

Amazon.com

Check prices at:

Radeon R7 M260

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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