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Radeon HD 6670 (OEM) vs Radeon HD 6750 1GB
Intro
The Radeon HD 6670 (OEM) makes use of a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific card. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.Compare all of that to the Radeon HD 6750 1GB, which comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs as well as 36 Texture Address Units and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
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63 Watts |
| Radeon HD 6750 1GB |
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86 Watts |
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Memory Bandwidth
Both cards have the exact same bandwidth, so theoretically they should have identical performance. (explain)
Texel Rate
The Radeon HD 6750 1GB will be quite a bit (more or less 36%) faster with regards to AF than the Radeon HD 6670 (OEM). (explain)| Radeon HD 6750 1GB |
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26100 Mtexels/sec |
| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
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Pixel Rate
The Radeon HD 6750 1GB will be quite a bit (approximately 81%) more effective at AA than the Radeon HD 6670 (OEM), and should be capable of handling higher screen resolutions without slowing down too much. (explain)| Radeon HD 6750 1GB |
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11600 Mpixels/sec |
| Radeon HD 6670 (OEM) |
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6400 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 6670 (OEM)Amazon.com
Check prices at:
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Radeon HD 6750 1GBAmazon.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 6670 (OEM) | Radeon HD 6750 1GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 2011 | January 2011 |
| Code Name | Turks | Juniper Pro |
| Memory | 512 MB | 1024 MB |
| Core Speed | 800 MHz | 725 MHz |
| Memory Speed | 4000 MHz | 4000 MHz |
| Power (Max TDP) | 63 watts | 86 watts |
| Bandwidth | 64000 MB/sec | 64000 MB/sec |
| Texel Rate | 19200 Mtexels/sec | 26100 Mtexels/sec |
| Pixel Rate | 6400 Mpixels/sec | 11600 Mpixels/sec |
| Unified Shaders | 480 | 720 |
| Texture Mapping Units | 24 | 36 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 715 million | 1040 million |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it should 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 texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 6670 (OEM)Amazon.com
Check prices at:
|
Radeon HD 6750 1GBAmazon.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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