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Radeon HD 4730 vs Radeon HD 5670
Intro
The Radeon HD 4730 has a core clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 128-bit memory bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 TAUs, and 8 Raster Operation Units.Compare that to the Radeon HD 5670, which features core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs as well as 20 TAUs and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5670 |
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61 Watts |
| Radeon HD 4730 |
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140 Watts |
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Memory Bandwidth
In theory, the Radeon HD 5670 will be 11% faster than the Radeon HD 4730 in general, due to its greater data rate. (explain)
| Radeon HD 5670 |
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64000 MB/sec |
| Radeon HD 4730 |
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57600 MB/sec |
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Texel Rate
The Radeon HD 4730 should be much (approximately 45%) faster with regards to AF than the Radeon HD 5670. (explain)| Radeon HD 4730 |
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22400 Mtexels/sec |
| Radeon HD 5670 |
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15500 Mtexels/sec |
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Pixel Rate
The Radeon HD 5670 is just a bit (about 11%) better at anti-aliasing than the Radeon HD 4730, and also should be able to handle higher screen resolutions without slowing down too much. (explain)| Radeon HD 5670 |
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6200 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
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 5670Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | Radeon HD 4730 | Radeon HD 5670 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | Jun 8, 2009 | January 14, 2010 |
| Code Name | RV770/CE | Redwood XT |
| Fab Process | 55 nm | 40 nm |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| Memory | 512 MB | 1024 MB |
| Core Speed | 700 MHz | 775 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 900 MHz | 1000 MHz |
| Unified Shaders | 640(128x5) | 400(80x5) |
| Texture Mapping Units | 32 | 20 |
| Render Output Units | 8 | 8 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
| Power (Max TDP) | 140 watts | 61 watts |
| Shader Model | 4.1 | 5.0 |
| Bandwidth | 57600 MB/sec | 64000 MB/sec |
| Texel Rate | 22400 Mtexels/sec | 15500 Mtexels/sec |
| Pixel Rate | 5600 Mpixels/sec | 6200 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.
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