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Radeon HD 5670 vs Radeon HD 5770
Intro
The Radeon HD 5670 features clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs as well as 20 TAUs and 8 Rasterization Operator Units.Compare that to the Radeon HD 5770, which makes use of a 40 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this particular card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5670 |
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61 Watts |
| Radeon HD 5770 |
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108 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 5770 should in theory be a small bit superior to the Radeon HD 5670 in general. (explain)
| Radeon HD 5770 |
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76800 MB/sec |
| Radeon HD 5670 |
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64000 MB/sec |
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Texel Rate
The Radeon HD 5770 should be quite a bit (approximately 119%) better at AF than the Radeon HD 5670. (explain)| Radeon HD 5770 |
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34000 Mtexels/sec |
| Radeon HD 5670 |
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15500 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the Radeon HD 5770 is the winner, by far. (explain)| Radeon HD 5770 |
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13600 Mpixels/sec |
| Radeon HD 5670 |
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6200 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 5670Amazon.com
Check prices at:
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Radeon HD 5770Amazon.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.
Specifications
| Model | Radeon HD 5670 | Radeon HD 5770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 14, 2010 | October 13, 2009 |
| Code Name | Redwood XT | Juniper XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 775 MHz | 850 MHz |
| Memory Speed | 4000 MHz | 4800 MHz |
| Power (Max TDP) | 61 watts | 108 watts |
| Bandwidth | 64000 MB/sec | 76800 MB/sec |
| Texel Rate | 15500 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 6200 Mpixels/sec | 13600 Mpixels/sec |
| Unified Shaders | 400(80x5) | 800(160x5) |
| Texture Mapping Units | 20 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 627 million | 1040 million |
| Bus | PCIe 2.1 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 3.2 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 memory bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 5670Amazon.com
Check prices at:
|
Radeon HD 5770Amazon.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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