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Radeon HD 5570 vs Radeon HD 7770
Intro
The Radeon HD 5570 uses a 40 nm design. AMD has set the core speed at 650 MHz. The DDR3 RAM runs at a frequency of 900 MHz on this particular model. It features 400(80x5) SPUs along with 20 TAUs and 8 ROPs.Compare all that to the Radeon HD 7770, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory runs at a speed of 1125 MHz on this specific model. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5570 |
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43 Watts |
| Radeon HD 7770 |
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80 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 7770 should theoretically be quite a bit superior to the Radeon HD 5570 in general. (explain)
| Radeon HD 7770 |
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72000 MB/sec |
| Radeon HD 5570 |
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28800 MB/sec |
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Texel Rate
The Radeon HD 7770 will be a lot (approximately 208%) better at AF than the Radeon HD 5570. (explain)| Radeon HD 7770 |
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40000 Mtexels/sec |
| Radeon HD 5570 |
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13000 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the Radeon HD 7770 is the winner, and very much so. (explain)| Radeon HD 7770 |
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16000 Mpixels/sec |
| Radeon HD 5570 |
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5200 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 5570Amazon.com
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Radeon HD 7770Amazon.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 5570 | Radeon HD 7770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 9, 2010 | February 2012 |
| Code Name | Redwood PRO | Cape Verde XT |
| Memory | 512 MB | 1024 MB |
| Core Speed | 650 MHz | 1000 MHz |
| Memory Speed | 1800 MHz | 4500 MHz |
| Power (Max TDP) | 43 watts | 80 watts |
| Bandwidth | 28800 MB/sec | 72000 MB/sec |
| Texel Rate | 13000 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 5200 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 400(80x5) | 640 |
| Texture Mapping Units | 20 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | DDR3 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 627 million | 1500 million |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 applied in one second. This is calculated by multiplying the total texture units of the card 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 applied per second.
Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 5570Amazon.com
Check prices at:
|
Radeon HD 7770Amazon.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
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