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Radeon HD 5570 vs Radeon HD 7770
Intro
The Radeon HD 5570 has a core clock frequency of 650 MHz and a DDR3 memory frequency of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.Compare that to the Radeon HD 7770, which comes with a clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, 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
Performance-wise, the Radeon HD 7770 should in theory be quite a bit superior to 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%) faster with regards to 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
If running with lots of anti-aliasing 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
Check prices at:
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Radeon HD 7770Amazon.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 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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability 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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