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Radeon HD 5870 vs Radeon R7 M260X

Intro

The Radeon HD 5870 comes with a GPU clock speed of 850 MHz, and the 1024 MB of GDDR5 memory runs at 1200 MHz through a 256-bit bus. It also is made up of 1600(320x5) Stream Processors, 80 TAUs, and 32 ROPs.

Compare that to the Radeon R7 M260X, which features core clock speeds of 825 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 5870 should theoretically be a lot faster than the Radeon R7 M260X in general. (explain)

Radeon HD 5870 153600 MB/sec
Radeon R7 M260X 64000 MB/sec
Difference: 89600 (140%)

Texel Rate

The Radeon HD 5870 will be quite a bit (about 243%) faster with regards to AF than the Radeon R7 M260X. (explain)

Radeon HD 5870 68000 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 48200 (243%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5870 is superior to the Radeon R7 M260X, by far. (explain)

Radeon HD 5870 27200 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 20600 (312%)

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 HD 5870

Amazon.com

Check prices at:

Radeon R7 M260X

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 HD 5870 Radeon R7 M260X
Manufacturer AMD AMD
Year September 23, 2009 June 2014
Code Name Cypress XT Opal
Memory 1024 MB 2048 MB
Core Speed 850 MHz 825 MHz
Memory Speed 4800 MHz 4000 MHz
Power (Max TDP) 188 watts (Unknown) watts
Bandwidth 153600 MB/sec 64000 MB/sec
Texel Rate 68000 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 1600(320x5) 384
Texture Mapping Units 80 24
Render Output Units 32 8
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 2154 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 3.2 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 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 higher the card's memory bandwidth, 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon HD 5870

Amazon.com

Check prices at:

Radeon R7 M260X

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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