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Radeon HD 3470 256MB vs Radeon HD 5570

Intro

The Radeon HD 3470 256MB features a GPU core clock speed of 800 MHz, and the 256 MB of DDR2 RAM is set to run at 950 MHz through a 128-bit bus. It also is comprised of 40(8x5) SPUs, 4 Texture Address Units, and 4 Raster Operation Units.

Compare all that to the Radeon HD 5570, which has core clock speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 RAM. It features 400(80x5) SPUs as well as 20 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3470 256MB should perform a bit faster than the Radeon HD 5570 in general. (explain)

Radeon HD 3470 256MB 30400 MB/sec
Radeon HD 5570 28800 MB/sec
Difference: 1600 (6%)

Texel Rate

The Radeon HD 5570 is quite a bit (more or less 306%) more effective at texture filtering than the Radeon HD 3470 256MB. (explain)

Radeon HD 5570 13000 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 9800 (306%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5570 is the winner, by far. (explain)

Radeon HD 5570 5200 Mpixels/sec
Radeon HD 3470 256MB 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 256MB

Amazon.com

Check prices at:

Radeon HD 5570

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 256MB Radeon HD 5570
Manufacturer AMD AMD
Year 2008 February 9, 2010
Code Name RV620 PRO Redwood PRO
Memory 256 MB 512 MB
Core Speed 800 MHz 650 MHz
Memory Speed 1900 MHz 1800 MHz
Power (Max TDP) (Unknown) watts 43 watts
Bandwidth 30400 MB/sec 28800 MB/sec
Texel Rate 3200 Mtexels/sec 13000 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 40(8x5) 400(80x5)
Texture Mapping Units 4 20
Render Output Units 4 8
Bus Type DDR2 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 627 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 figure is worked out by multiplying the total number 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 is also dependant on quite a few other factors, most notably 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 3470 256MB

Amazon.com

Check prices at:

Radeon HD 5570

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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