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Radeon HD 5870 vs Radeon R7 M260X

Intro

The Radeon HD 5870 uses a 40 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this particular card. It features 1600(320x5) SPUs as well as 80 Texture Address Units and 32 ROPs.

Compare those specifications to the Radeon R7 M260X, which uses a 28 nm design. AMD has set the core speed at 825 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this model. It features 384 SPUs along with 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5870 will be 140% faster than the Radeon R7 M260X in general, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5870 is a lot (approximately 243%) more effective at AF than the Radeon R7 M260X. (explain)

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

Pixel Rate

The Radeon HD 5870 will be quite a bit (more or less 312%) better at AA than the Radeon R7 M260X, and also will be capable of handling higher screen resolutions while still performing well. (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

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Radeon R7 M260X

Amazon.com

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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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum 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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