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Radeon HD 6950 vs Radeon HD 7750
Intro
The Radeon HD 6950 has a GPU core speed of 800 MHz, and the 1024 MB of GDDR5 RAM runs at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 Texture Address Units, and 32 Raster Operation Units.Compare that to the Radeon HD 7750, which makes use of a 28 nm design. ATi has clocked the core frequency at 800 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this particular model. It features 512 SPUs as well as 32 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7750 |
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55 Watts |
| Radeon HD 6950 |
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200 Watts |
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Memory Bandwidth
Theoretically, the Radeon HD 6950 should be quite a bit faster than the Radeon HD 7750 overall. (explain)
| Radeon HD 6950 |
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160000 MB/sec |
| Radeon HD 7750 |
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72000 MB/sec |
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Texel Rate
The Radeon HD 6950 should be quite a bit (about 175%) better at texture filtering than the Radeon HD 7750. (explain)| Radeon HD 6950 |
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70400 Mtexels/sec |
| Radeon HD 7750 |
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25600 Mtexels/sec |
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Pixel Rate
The Radeon HD 6950 will be much (more or less 100%) faster with regards to FSAA than the Radeon HD 7750, and will be able to handle higher resolutions without slowing down too much. (explain)| Radeon HD 6950 |
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25600 Mpixels/sec |
| Radeon HD 7750 |
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12800 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 6950Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 7750Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | Radeon HD 6950 | Radeon HD 7750 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | December 2010 | February 2012 |
| Code Name | Cayman Pro | Cape Verde Pro |
| Fab Process | 40 nm | 28 nm |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 800 MHz | 800 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 1250 MHz (5000 MHz effective) | 1125 MHz (4500 MHz effective) |
| Unified Shaders | 1408 | 512 |
| Texture Mapping Units | 88 | 32 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
| Power (Max TDP) | 200 watts | 55 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 160000 MB/sec | 72000 MB/sec |
| Texel Rate | 70400 Mtexels/sec | 25600 Mtexels/sec |
| Pixel Rate | 25600 Mpixels/sec | 12800 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher 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 one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
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