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Radeon HD 6750 vs Radeon HD 6850
Intro
The Radeon HD 6750 features a GPU core clock speed of 725 MHz, and the 512 MB of GDDR5 memory runs at 1000 MHz through a 128-bit bus. It also is comprised of 720 Stream Processors, 36 TAUs, and 16 Raster Operation Units.Compare that to the Radeon HD 6850, which has clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 960 SPUs as well as 48 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6750 |
|
86 Watts |
| Radeon HD 6850 |
|
127 Watts |
|
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Memory Bandwidth
As far as performance goes, the Radeon HD 6850 should theoretically be much superior to the Radeon HD 6750 in general. (explain)
| Radeon HD 6850 |
|
128000 MB/sec |
| Radeon HD 6750 |
|
64000 MB/sec |
|
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Texel Rate
The Radeon HD 6850 is a lot (about 43%) faster with regards to AF than the Radeon HD 6750. (explain)| Radeon HD 6850 |
|
37200 Mtexels/sec |
| Radeon HD 6750 |
|
26100 Mtexels/sec |
|
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Pixel Rate
The Radeon HD 6850 is a lot (more or less 114%) better at full screen anti-aliasing than the Radeon HD 6750, and able to handle higher resolutions while still performing well. (explain)| Radeon HD 6850 |
|
24800 Mpixels/sec |
| Radeon HD 6750 |
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11600 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Radeon HD 6750Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6850Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | Radeon HD 6750 | Radeon HD 6850 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | January 2011 | October 2010 |
| Code Name | Juniper Pro | Barts Pro |
| Fab Process | 40 nm | 40 nm |
| Bus | PCIe x16 | PCIe x16 |
| Memory | 512 MB | 1024 MB |
| Core Speed | 725 MHz | 775 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 1000 MHz (4000 MHz effective) | 1000 MHz (4000 MHz effective) |
| Unified Shaders | 720 | 960 |
| Texture Mapping Units | 36 | 48 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.0 | OpenGL 4.1 |
| Power (Max TDP) | 86 watts | 127 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 64000 MB/sec | 128000 MB/sec |
| Texel Rate | 26100 Mtexels/sec | 37200 Mtexels/sec |
| Pixel Rate | 11600 Mpixels/sec | 24800 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
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