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Radeon HD 3470 256MB vs Radeon HD 5570

Intro

The Radeon HD 3470 256MB comes with core speeds of 800 MHz on the GPU, and 950 MHz on the 256 MB of DDR2 RAM. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 ROPs.

Compare those specifications to the Radeon HD 5570, which comes with a clock frequency of 650 MHz and a DDR3 memory frequency of 900 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3470 256MB should in theory be just a bit better than the Radeon HD 5570 overall. (explain)

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

Texel Rate

The Radeon HD 5570 should be much (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

The Radeon HD 5570 should be quite a bit (about 63%) more effective at AA than the Radeon HD 3470 256MB, and also should be capable of handling higher resolutions without slowing down too much. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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