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GeForce GTX 550 Ti vs Radeon HD 6850
Intro
The GeForce GTX 550 Ti features a GPU clock speed of 900 MHz, and the 1024 MB of GDDR5 memory runs at 1026 MHz through a 192-bit bus. It also is made up of 192 SPUs, 32 Texture Address Units, and 24 ROPs.Compare all of that to the Radeon HD 6850, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is made up of 960 Stream Processors, 48 TAUs, and 32 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 550 Ti |
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116 Watts |
| Radeon HD 6850 |
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127 Watts |
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Memory Bandwidth
In theory, the Radeon HD 6850 should be 30% quicker than the GeForce GTX 550 Ti in general, due to its higher bandwidth. (explain)
| Radeon HD 6850 |
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128000 MB/sec |
| GeForce GTX 550 Ti |
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98496 MB/sec |
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Texel Rate
The Radeon HD 6850 is much (more or less 29%) more effective at texture filtering than the GeForce GTX 550 Ti. (explain)| Radeon HD 6850 |
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37200 Mtexels/sec |
| GeForce GTX 550 Ti |
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28800 Mtexels/sec |
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Pixel Rate
The Radeon HD 6850 is just a bit (about 15%) better at FSAA than the GeForce GTX 550 Ti, and able to handle higher screen resolutions better. (explain)| Radeon HD 6850 |
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24800 Mpixels/sec |
| GeForce GTX 550 Ti |
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21600 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.
GeForce GTX 550 TiAmazon.com
Other US-based stores
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Radeon HD 6850Amazon.com
Other US-based stores
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Specifications
| Model | GeForce GTX 550 Ti | Radeon HD 6850 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 2011 | October 2010 |
| Code Name | GF116 | Barts Pro |
| Fab Process | 40 nm | 40 nm |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 900 MHz | 775 MHz |
| Shader Speed | 1800 MHz | (N/A) MHz |
| Memory Speed | 1026 MHz (4104 MHz effective) | 1000 MHz (4000 MHz effective) |
| Unified Shaders | 192 | 960 |
| Texture Mapping Units | 32 | 48 |
| Render Output Units | 24 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
| Power (Max TDP) | 116 watts | 127 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 98496 MB/sec | 128000 MB/sec |
| Texel Rate | 28800 Mtexels/sec | 37200 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 24800 Mpixels/sec |
Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB 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 the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the 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 maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
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