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Radeon HD 7850 vs Radeon RX 570

Intro

The Radeon HD 7850 features a clock speed of 860 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon RX 570, which comes with GPU clock speed of 1168 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

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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 7850 5200 points
Difference: 6908 (133%)

Zcash Mining Hash Rate

Radeon RX 570 298 Sol/s
Radeon HD 7850 171 Sol/s
Difference: 127 (74%)

Ethereum Mining Hash Rate

Radeon RX 570 26 Mh/s
Radeon HD 7850 13 Mh/s
Difference: 13 (100%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
Radeon RX 570 150 Watts
Difference: 20 Watts (15%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 570 will be 49% quicker than the Radeon HD 7850 overall, because of its higher data rate. (explain)

Radeon RX 570 229376 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 75776 (49%)

Texel Rate

The Radeon RX 570 is much (approximately 172%) better at AF than the Radeon HD 7850. (explain)

Radeon RX 570 149504 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 94464 (172%)

Pixel Rate

The Radeon RX 570 is much (about 36%) faster with regards to anti-aliasing than the Radeon HD 7850, and also will be capable of handling higher screen resolutions better. (explain)

Radeon RX 570 37376 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 9856 (36%)

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 7850

Amazon.com

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Radeon RX 570

Amazon.com

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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 7850 Radeon RX 570
Manufacturer AMD AMD
Year March 2012 April 2017
Code Name Pitcairn Pro Polaris 20
Memory 2048 MB 4096 MB
Core Speed 860 MHz 1168 MHz
Memory Speed 4800 MHz 7000 MHz
Power (Max TDP) 130 watts 150 watts
Bandwidth 153600 MB/sec 229376 MB/sec
Texel Rate 55040 Mtexels/sec 149504 Mtexels/sec
Pixel Rate 27520 Mpixels/sec 37376 Mpixels/sec
Unified Shaders 1024 2048
Texture Mapping Units 64 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 14 nm
Transistors 2800 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 7850

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.

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