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Radeon HD 5850 vs Radeon R7 260X

Intro

The Radeon HD 5850 comes with a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is comprised of 1440(288x5) SPUs, 72 TAUs, and 32 ROPs.

Compare those specs to the Radeon R7 260X, which features a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1625 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X 115 Watts
Radeon HD 5850 151 Watts
Difference: 36 Watts (31%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5850 should be 23% faster than the Radeon R7 260X in general, because of its greater bandwidth. (explain)

Radeon HD 5850 128000 MB/sec
Radeon R7 260X 104000 MB/sec
Difference: 24000 (23%)

Texel Rate

The Radeon R7 260X will be a small bit (more or less 18%) more effective at texture filtering than the Radeon HD 5850. (explain)

Radeon R7 260X 61600 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 9400 (18%)

Pixel Rate

The Radeon HD 5850 is much (more or less 32%) faster with regards to full screen anti-aliasing than the Radeon R7 260X, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon R7 260X 17600 Mpixels/sec
Difference: 5600 (32%)

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 5850

Amazon.com

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Radeon R7 260X

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 5850 Radeon R7 260X
Manufacturer AMD AMD
Year September 30, 2009 October 2013
Code Name Cypress PRO Bonaire XTX
Memory 1024 MB 2048 MB
Core Speed 725 MHz 1100 MHz
Memory Speed 4000 MHz 6500 MHz
Power (Max TDP) 151 watts 115 watts
Bandwidth 128000 MB/sec 104000 MB/sec
Texel Rate 52200 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 1440(288x5) 896
Texture Mapping Units 72 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 2154 million 2080 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 5850

Amazon.com

Check prices at:

Radeon R7 260X

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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