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Radeon HD 3470 256MB vs Radeon HD 5830

Intro

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

Compare all that to the Radeon HD 5830, which has a clock speed of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should be much faster than the Radeon HD 3470 256MB overall. (explain)

Radeon HD 5830 128000 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 97600 (321%)

Texel Rate

The Radeon HD 5830 is much (approximately 1300%) faster with regards to AF than the Radeon HD 3470 256MB. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 41600 (1300%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5830 is a better choice, by far. (explain)

Radeon HD 5830 12800 Mpixels/sec
Radeon HD 3470 256MB 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 256MB

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 256MB Radeon HD 5830
Manufacturer AMD AMD
Year 2008 February 25, 2010
Code Name RV620 PRO Cypress LE
Memory 256 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 DDR2 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: Bandwidth is the max amount of data (measured in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 3470 256MB

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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