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Radeon HD 6770 vs Radeon RX 570

Intro

The Radeon HD 6770 makes use of a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1050 MHz on this particular card. It features 800 SPUs along with 40 Texture Address Units and 16 ROPs.

Compare those specifications to the Radeon RX 570, which features core speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 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 6770 1520 points
Difference: 10588 (697%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 108 Watts
Radeon RX 570 150 Watts
Difference: 42 Watts (39%)

Memory Bandwidth

The Radeon RX 570 should in theory be much faster than the Radeon HD 6770 in general. (explain)

Radeon RX 570 229376 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 162176 (241%)

Texel Rate

The Radeon RX 570 is much (about 315%) more effective at anisotropic filtering than the Radeon HD 6770. (explain)

Radeon RX 570 149504 Mtexels/sec
Radeon HD 6770 36000 Mtexels/sec
Difference: 113504 (315%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 570 is superior to the Radeon HD 6770, and very much so. (explain)

Radeon RX 570 37376 Mpixels/sec
Radeon HD 6770 14400 Mpixels/sec
Difference: 22976 (160%)

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 6770

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 6770 Radeon RX 570
Manufacturer AMD AMD
Year January 2011 April 2017
Code Name Juniper XT Polaris 20
Memory 512 MB 4096 MB
Core Speed 900 MHz 1168 MHz
Memory Speed 4200 MHz 7000 MHz
Power (Max TDP) 108 watts 150 watts
Bandwidth 67200 MB/sec 229376 MB/sec
Texel Rate 36000 Mtexels/sec 149504 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 37376 Mpixels/sec
Unified Shaders 800 2048
Texture Mapping Units 40 128
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 14 nm
Transistors 1040 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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 6770

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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