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Radeon HD 5570 vs Radeon HD 7770
Intro
The Radeon HD 5570 comes with core speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 memory. It features 400(80x5) SPUs as well as 20 Texture Address Units and 8 Rasterization Operator Units.Compare all that to the Radeon HD 7770, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory is set to run at a speed of 1125 MHz on this model. It features 640 SPUs along with 40 TAUs and 16 ROPs.
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
The Radeon HD 7770, in theory, should be quite a bit faster than the Radeon HD 5570 overall. (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 is quite a bit (approximately 208%) more effective at anisotropic 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 should be much (about 208%) faster with regards to anti-aliasing than the Radeon HD 5570, and will be 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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of 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 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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