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Radeon HD 4870 512MB vs Radeon HD 5830
Intro
The Radeon HD 4870 512MB has clock speeds of 750 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.Compare all of that to the Radeon HD 5830, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 1120(224x5) SPUs along with 56 TAUs and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4870 512MB |
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150 Watts |
| Radeon HD 5830 |
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175 Watts |
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Memory Bandwidth
In theory, the Radeon HD 5830 will be 11% quicker than the Radeon HD 4870 512MB overall, due to its higher bandwidth. (explain)
| Radeon HD 5830 |
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128000 MB/sec |
| Radeon HD 4870 512MB |
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115200 MB/sec |
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Texel Rate
The Radeon HD 5830 will be much (more or less 49%) faster with regards to texture filtering than the Radeon HD 4870 512MB. (explain)| Radeon HD 5830 |
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44800 Mtexels/sec |
| Radeon HD 4870 512MB |
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30000 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 5830 is superior to the Radeon HD 4870 512MB, but it probably won't make a huge difference. (explain)| Radeon HD 5830 |
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12800 Mpixels/sec |
| Radeon HD 4870 512MB |
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12000 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 4870 512MBAmazon.com
Check prices at:
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Radeon HD 5830Amazon.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 4870 512MB | Radeon HD 5830 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | February 25, 2010 |
| Code Name | RV770 XT | Cypress LE |
| Memory | 512 MB | 1024 MB |
| Core Speed | 750 MHz | 800 MHz |
| Memory Speed | 3600 MHz | 4000 MHz |
| Power (Max TDP) | 150 watts | 175 watts |
| Bandwidth | 115200 MB/sec | 128000 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 44800 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 12800 Mpixels/sec |
| Unified Shaders | 800(160x5) | 1120(224x5) |
| Texture Mapping Units | 40 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 956 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 past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 4870 512MBAmazon.com
Check prices at:
|
Radeon HD 5830Amazon.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.
|
Comments
2 Responses to “Radeon HD 4870 512MB vs Radeon HD 5830”geforce 315
[...] Radeon HD 4870 512MB vs Radeon HD 5830 – Performance …Jun 8, 2011 … Compare all that to the Radeon HD 5830, which features GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz … [...]