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Radeon HD 6570 (OEM) 1GB vs Radeon HD 6770 1GB

Intro

The Radeon HD 6570 (OEM) 1GB makes use of a 40 nm design. AMD has set the core frequency at 650 MHz. The GDDR3 memory works at a speed of 900 MHz on this particular model. It features 480 SPUs along with 24 TAUs and 8 ROPs.

Compare that to the Radeon HD 6770 1GB, which has a core clock speed of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 58 Watts (116%)

Memory Bandwidth

In theory, the Radeon HD 6770 1GB should be 133% quicker than the Radeon HD 6570 (OEM) 1GB in general, due to its greater data rate. (explain)

Radeon HD 6770 1GB 67200 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 38400 (133%)

Texel Rate

The Radeon HD 6770 1GB is a lot (approximately 131%) better at anisotropic filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Difference: 20400 (131%)

Pixel Rate

The Radeon HD 6770 1GB is a lot (more or less 177%) better at full screen anti-aliasing than the Radeon HD 6570 (OEM) 1GB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Difference: 9200 (177%)

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 6570 (OEM) 1GB

Amazon.com

Check prices at:

Radeon HD 6770 1GB

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 6570 (OEM) 1GB Radeon HD 6770 1GB
Manufacturer AMD AMD
Year February 2011 January 2011
Code Name Turks Juniper XT
Memory 1024 MB 1024 MB
Core Speed 650 MHz 900 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 50 watts 108 watts
Bandwidth 28800 MB/sec 67200 MB/sec
Texel Rate 15600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 480 800
Texture Mapping Units 24 40
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 715 million 1040 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 6570 (OEM) 1GB

Amazon.com

Check prices at:

Radeon HD 6770 1GB

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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