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Radeon HD 6850 vs Radeon RX 460

Intro

The Radeon HD 6850 features a core clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is comprised of 960 SPUs, 48 TAUs, and 32 ROPs.

Compare all that to the Radeon RX 460, which uses a 14 nm design. AMD has clocked the core speed at 1090 MHz. The GDDR5 memory works at a speed of 1750 MHz on this model. It features 896 SPUs as well as 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 RX 460 5595 points
Radeon HD 6850 2395 points
Difference: 3200 (134%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 75 Watts
Radeon HD 6850 127 Watts
Difference: 52 Watts (69%)

Memory Bandwidth

The Radeon HD 6850, in theory, should be a bit faster than the Radeon RX 460 overall. (explain)

Radeon HD 6850 128000 MB/sec
Radeon RX 460 112000 MB/sec
Difference: 16000 (14%)

Texel Rate

The Radeon RX 460 should be much (approximately 64%) faster with regards to anisotropic filtering than the Radeon HD 6850. (explain)

Radeon RX 460 61040 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 23840 (64%)

Pixel Rate

The Radeon HD 6850 should be a lot (about 42%) faster with regards to anti-aliasing than the Radeon RX 460, and should be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 7360 (42%)

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

Check prices at:

Radeon RX 460

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 RX 460
Manufacturer AMD AMD
Year October 2010 August 2016
Code Name Barts Pro Polaris 11
Memory 1024 MB 4096 MB
Core Speed 775 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 127 watts 75 watts
Bandwidth 128000 MB/sec 112000 MB/sec
Texel Rate 37200 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 24800 Mpixels/sec 17440 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 14 nm
Transistors 1700 million 3000 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Radeon HD 6850

Amazon.com

Check prices at:

Radeon RX 460

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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