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Radeon HD 3470 512MB vs Radeon HD 5830

Intro

The Radeon HD 3470 512MB comes with core clock speeds of 800 MHz on the GPU, and 950 MHz on the 512 MB of GDDR3 RAM. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 ROPs.

Compare those specifications to the Radeon HD 5830, which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 5830 should in theory be much superior to the Radeon HD 3470 512MB overall. (explain)

Radeon HD 5830 128000 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 97600 (321%)

Texel Rate

The Radeon HD 5830 should be much (more or less 1300%) better at AF than the Radeon HD 3470 512MB. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 41600 (1300%)

Pixel Rate

The Radeon HD 5830 is a lot (approximately 300%) more effective at full screen anti-aliasing than the Radeon HD 3470 512MB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 5830 12800 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 9600 (300%)

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

Check prices at:

Radeon HD 5830

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 5830
Manufacturer AMD AMD
Year 2008 February 25, 2010
Code Name RV620 PRO Cypress LE
Memory 512 MB 1024 MB
Core Speed 800 MHz 800 MHz
Memory Speed 1900 MHz 4000 MHz
Power (Max TDP) (Unknown) watts 175 watts
Bandwidth 30400 MB/sec 128000 MB/sec
Texel Rate 3200 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 40(8x5) 1120(224x5)
Texture Mapping Units 4 56
Render Output Units 4 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 2154 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 data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - 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 3470 512MB

Amazon.com

Check prices at:

Radeon HD 5830

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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