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Radeon HD 4830 1GB vs Radeon HD 6670 (OEM)
Intro
The Radeon HD 4830 1GB features a GPU core speed of 575 MHz, and the 1024 MB of GDDR4 RAM runs at 900 MHz through a 256-bit bus. It also is made up of 640(128x5) Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.Compare all that to the Radeon HD 6670 (OEM), which comes with a clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is comprised of 480 SPUs, 24 TAUs, and 8 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
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63 Watts |
| Radeon HD 4830 1GB |
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95 Watts |
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Memory Bandwidth
The Radeon HD 6670 (OEM) should theoretically perform a little bit faster than the Radeon HD 4830 1GB in general. (explain)
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
| Radeon HD 4830 1GB |
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57600 MB/sec |
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Texel Rate
The Radeon HD 6670 (OEM) should be a small bit (more or less 4%) better at anisotropic filtering than the Radeon HD 4830 1GB. (explain)| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
| Radeon HD 4830 1GB |
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18400 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the Radeon HD 4830 1GB is superior to the Radeon HD 6670 (OEM), by far. (explain)| Radeon HD 4830 1GB |
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9200 Mpixels/sec |
| Radeon HD 6670 (OEM) |
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6400 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
Radeon HD 4830 1GBAmazon.com
Check prices at:
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Radeon HD 6670 (OEM)Amazon.com
Check prices at:
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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 4830 1GB | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Oct 21, 2008 | February 2011 |
| Code Name | RV770 LE | Turks |
| Memory | 1024 MB | 512 MB |
| Core Speed | 575 MHz | 800 MHz |
| Memory Speed | 1800 MHz | 4000 MHz |
| Power (Max TDP) | 95 watts | 63 watts |
| Bandwidth | 57600 MB/sec | 64000 MB/sec |
| Texel Rate | 18400 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 9200 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 640(128x5) | 480 |
| Texture Mapping Units | 32 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR4 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 956 million | 715 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, 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 calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 4830 1GBAmazon.com
Check prices at:
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Radeon HD 6670 (OEM)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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