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Radeon HD 3470 256MB vs Radeon HD 3470 512MB
Intro
The Radeon HD 3470 256MB features a clock frequency of 800 MHz and a DDR2 memory frequency of 950 MHz. It also uses a 128-bit memory bus, and makes use of a 55 nm design. It features 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.Compare all that to the Radeon HD 3470 512MB, which makes use of a 55 nm design. AMD has clocked the core speed at 800 MHz. The GDDR3 memory is set to run at a frequency of 950 MHz on this model. It features 40(8x5) SPUs along with 4 Texture Address Units and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
Both cards have exactly the same bandwidth, so in theory they should perform the same. (explain)
Texel Rate
Both cards have exactly the same texel rate, so in theory they should be equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have exactly the same pixel rate, so in theory they should be equally good at at full screen anti-aliasing, and be capable of handling the same resolutions. (explain)
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
Radeon HD 3470 256MBAmazon.com
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Radeon HD 3470 512MBAmazon.com
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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
| Model | Radeon HD 3470 256MB | Radeon HD 3470 512MB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | 2008 |
| Code Name | RV620 PRO | RV620 PRO |
| Memory | 256 MB | 512 MB |
| Core Speed | 800 MHz | 800 MHz |
| Memory Speed | 1900 MHz | 1900 MHz |
| Power (Max TDP) | (Unknown) watts | (Unknown) watts |
| Bandwidth | 30400 MB/sec | 30400 MB/sec |
| Texel Rate | 3200 Mtexels/sec | 3200 Mtexels/sec |
| Pixel Rate | 3200 Mpixels/sec | 3200 Mpixels/sec |
| Unified Shaders | 40(8x5) | 40(8x5) |
| Texture Mapping Units | 4 | 4 |
| Render Output Units | 4 | 4 |
| Bus Type | DDR2 | GDDR3 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 55 nm |
| Transistors | (Unknown) million | (Unknown) million |
| Bus | PCIe 2.0 x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should 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 AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 3470 256MBAmazon.com
Check prices at:
|
Radeon HD 3470 512MBAmazon.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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