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Radeon HD 6850 vs Radeon RX 570

Intro

The Radeon HD 6850 comes with a GPU clock speed of 775 MHz, and the 1024 MB of GDDR5 memory runs at 1000 MHz through a 256-bit bus. It also features 960 SPUs, 48 Texture Address Units, and 32 ROPs.

Compare all of that to the Radeon RX 570, which has GPU clock speed of 1168 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation 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 570 12108 points
Radeon HD 6850 2395 points
Difference: 9713 (406%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850 127 Watts
Radeon RX 570 150 Watts
Difference: 23 Watts (18%)

Memory Bandwidth

The Radeon RX 570 should in theory perform a lot faster than the Radeon HD 6850 overall. (explain)

Radeon RX 570 229376 MB/sec
Radeon HD 6850 128000 MB/sec
Difference: 101376 (79%)

Texel Rate

The Radeon RX 570 will be a lot (more or less 302%) better at anisotropic filtering than the Radeon HD 6850. (explain)

Radeon RX 570 149504 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 112304 (302%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 570 is the winner, and very much so. (explain)

Radeon RX 570 37376 Mpixels/sec
Radeon HD 6850 24800 Mpixels/sec
Difference: 12576 (51%)

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 570

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 570
Manufacturer AMD AMD
Year October 2010 April 2017
Code Name Barts Pro Polaris 20
Memory 1024 MB 4096 MB
Core Speed 775 MHz 1168 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 127 watts 150 watts
Bandwidth 128000 MB/sec 229376 MB/sec
Texel Rate 37200 Mtexels/sec 149504 Mtexels/sec
Pixel Rate 24800 Mpixels/sec 37376 Mpixels/sec
Unified Shaders 960 2048
Texture Mapping Units 48 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 14 nm
Transistors 1700 million 5700 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 information (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of 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 570

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.

Comments

One Response to “Radeon HD 6850 vs Radeon RX 570”
dafunk_lull says:

rx570's configured with the 8 pin power connector Can run if a 6 pin is used instead. no where does it say this anywhere. you just cannot over clock it. infact down clocking it 5% to stay safe. and no stress testing other wise it works.

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