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Radeon HD 5570 vs Radeon HD 7770
Intro
The Radeon HD 5570 uses a 40 nm design. AMD has clocked the core frequency at 650 MHz. The DDR3 memory runs at a frequency of 900 MHz on this model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 ROPs.Compare those specs to the Radeon HD 7770, which has clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs along with 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
In theory, the Radeon HD 7770 should be 150% quicker than the Radeon HD 5570 in general, because of its higher data rate. (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 quite a bit (approximately 208%) more effective at texture filtering 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
The Radeon HD 7770 will be a lot (approximately 208%) more effective at full screen anti-aliasing than the Radeon HD 5570, and also capable of handling higher screen resolutions better. (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 information (measured in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential 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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