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Radeon HD 6850 vs Radeon R7 260X

Intro

The Radeon HD 6850 uses a 40 nm design. AMD has set the core frequency at 775 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific model. It features 960 SPUs along with 48 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Radeon R7 260X, which makes use of 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 particular card. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R7 260X 4381 points
Radeon HD 6850 2395 points
Difference: 1986 (83%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X 115 Watts
Radeon HD 6850 127 Watts
Difference: 12 Watts (10%)

Memory Bandwidth

Performance-wise, the Radeon HD 6850 should theoretically be much better than the Radeon R7 260X overall. (explain)

Radeon HD 6850 128000 MB/sec
Radeon R7 260X 104000 MB/sec
Difference: 24000 (23%)

Texel Rate

The Radeon R7 260X should be a lot (about 66%) more effective at AF than the Radeon HD 6850. (explain)

Radeon R7 260X 61600 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 24400 (66%)

Pixel Rate

The Radeon HD 6850 is quite a bit (about 41%) faster with regards to anti-aliasing than the Radeon R7 260X, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon R7 260X 17600 Mpixels/sec
Difference: 7200 (41%)

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 6850

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 6850 Radeon R7 260X
Manufacturer AMD AMD
Year October 2010 October 2013
Code Name Barts Pro Bonaire XTX
Memory 1024 MB 2048 MB
Core Speed 775 MHz 1100 MHz
Memory Speed 4000 MHz 6500 MHz
Power (Max TDP) 127 watts 115 watts
Bandwidth 128000 MB/sec 104000 MB/sec
Texel Rate 37200 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 24800 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 960 896
Texture Mapping Units 48 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1700 million 2080 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 6850

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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