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Radeon HD 5850 vs Radeon R7 260X

Intro

The Radeon HD 5850 comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon R7 260X, which uses a 28 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 RAM runs at a frequency of 1625 MHz on this specific card. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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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

The Radeon HD 5850 should theoretically be much faster than the Radeon R7 260X overall. (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 bit (approximately 18%) faster with regards to 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

If running with a high screen resolution is important to you, then the Radeon HD 5850 is the winner, by a large margin. (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

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.

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 maximum amount of information (in units of MB 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 speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential 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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