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Radeon HD 6670 (OEM) vs Radeon HD 6750 1GB
Intro
The Radeon HD 6670 (OEM) comes with a clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.Compare all that to the Radeon HD 6750 1GB, which features core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs along with 36 TAUs 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 exactly the same bandwidth, so theoretically they should perform the same. (explain)
Texel Rate
The Radeon HD 6750 1GB is quite a bit (more or less 36%) faster with regards to anisotropic filtering 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 (more or less 81%) better at anti-aliasing than the Radeon HD 6670 (OEM), and will be capable of handling higher resolutions more effectively. (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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max 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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