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Radeon HD 5670 vs Radeon HD 7770
Intro
The Radeon HD 5670 features a core clock speed of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.Compare those specifications to the Radeon HD 7770, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1125 MHz on this card. It features 640 SPUs as well as 40 TAUs 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 7770 |
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80 Watts |
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Memory Bandwidth
The Radeon HD 7770, in theory, should be a small bit faster than the Radeon HD 5670 in general. (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 (about 158%) faster with regards to anisotropic filtering 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 the winner, and very much so. (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 maximum amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max 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 [...]