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Radeon HD 4730 vs Radeon HD 5830
Intro
The Radeon HD 4730 features clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs along with 32 TAUs and 8 ROPs.Compare all of that to the Radeon HD 5830, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1120(224x5) SPUs, 56 TAUs, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4730 |
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140 Watts |
| Radeon HD 5830 |
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175 Watts |
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Memory Bandwidth
The Radeon HD 5830, in theory, should be much faster than the Radeon HD 4730 in general. (explain)
| Radeon HD 5830 |
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128000 MB/sec |
| Radeon HD 4730 |
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57600 MB/sec |
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Texel Rate
The Radeon HD 5830 should be quite a bit (approximately 100%) more effective at texture filtering than the Radeon HD 4730. (explain)| Radeon HD 5830 |
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44800 Mtexels/sec |
| Radeon HD 4730 |
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22400 Mtexels/sec |
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Pixel Rate
The Radeon HD 5830 will be much (about 129%) better at full screen anti-aliasing than the Radeon HD 4730, and also will be able to handle higher resolutions better. (explain)| Radeon HD 5830 |
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12800 Mpixels/sec |
| Radeon HD 4730 |
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5600 Mpixels/sec |
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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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Radeon HD 4730Amazon.com
Other US-based stores
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Radeon HD 5830Amazon.com
Other US-based stores
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Specifications
| Model | Radeon HD 4730 | Radeon HD 5830 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | Jun 8, 2009 | February 25, 2010 |
| Code Name | RV770/CE | Cypress LE |
| Fab Process | 55 nm | 40 nm |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| Memory | 512 MB | 1024 MB |
| Core Speed | 700 MHz | 800 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 900 MHz (3600 MHz effective) | 1000 MHz (4000 MHz effective) |
| Unified Shaders | 640(128x5) | 1120(224x5) |
| Texture Mapping Units | 32 | 56 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
| Power (Max TDP) | 140 watts | 175 watts |
| Shader Model | 4.1 | 5.0 |
| Bandwidth | 57600 MB/sec | 128000 MB/sec |
| Texel Rate | 22400 Mtexels/sec | 44800 Mtexels/sec |
| Pixel Rate | 5600 Mpixels/sec | 12800 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, 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 anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
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