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Radeon HD 3470 512MB vs Radeon HD 6570 (OEM) 1GB

Intro

The Radeon HD 3470 512MB makes use of a 55 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR3 RAM works at a frequency of 950 MHz on this specific model. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 ROPs.

Compare all that to the Radeon HD 6570 (OEM) 1GB, which has GPU clock speed of 650 MHz, and 1024 MB of GDDR3 memory running at 900 MHz through a 128-bit bus. It also features 480 SPUs, 24 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 3470 512MB should in theory perform a bit faster than the Radeon HD 6570 (OEM) 1GB overall. (explain)

Radeon HD 3470 512MB 30400 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 1600 (6%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB is much (approximately 388%) better at AF than the Radeon HD 3470 512MB. (explain)

Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 12400 (388%)

Pixel Rate

The Radeon HD 6570 (OEM) 1GB should be much (approximately 63%) faster with regards to AA than the Radeon HD 3470 512MB, and capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 2000 (63%)

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 3470 512MB

Amazon.com

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Radeon HD 6570 (OEM) 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 3470 512MB Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year 2008 February 2011
Code Name RV620 PRO Turks
Memory 512 MB 1024 MB
Core Speed 800 MHz 650 MHz
Memory Speed 1900 MHz 1800 MHz
Power (Max TDP) (Unknown) watts 50 watts
Bandwidth 30400 MB/sec 28800 MB/sec
Texel Rate 3200 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 40(8x5) 480
Texture Mapping Units 4 24
Render Output Units 4 8
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 715 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units by the core clock 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 maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 3470 512MB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 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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