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Radeon HD 5670 vs Radeon HD 7770
Intro
The Radeon HD 5670 makes use of a 40 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.Compare all of that to the Radeon HD 7770, which comes with GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5670 |
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61 Watts |
| Radeon HD 7770 |
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80 Watts |
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Memory Bandwidth
Theoretically, the Radeon HD 7770 should perform just a bit faster than the Radeon HD 5670 overall. (explain)
| Radeon HD 7770 |
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72000 MB/sec |
| Radeon HD 5670 |
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64000 MB/sec |
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Texel Rate
The Radeon HD 7770 will be quite a bit (approximately 158%) better at AF than the Radeon HD 5670. (explain)| Radeon HD 7770 |
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40000 Mtexels/sec |
| Radeon HD 5670 |
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15500 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon HD 7770 is a better choice, by a large margin. (explain)| Radeon HD 7770 |
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16000 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
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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 5670 | Radeon HD 7770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 14, 2010 | February 2012 |
| Code Name | Redwood XT | Cape Verde XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 775 MHz | 1000 MHz |
| Memory Speed | 4000 MHz | 4500 MHz |
| Power (Max TDP) | 61 watts | 80 watts |
| Bandwidth | 64000 MB/sec | 72000 MB/sec |
| Texel Rate | 15500 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 6200 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 400(80x5) | 640 |
| Texture Mapping Units | 20 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | 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 (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 5670Amazon.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
One Response to “Radeon HD 5670 vs Radeon HD 7770”[...] improvement between these cards will yield over double. Radeon HD 5670 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare However a 7770 is not maxing out BF3, sorry. Here is the card I use that maxes out BF3: GeForce [...]