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Radeon HD 6850 vs Radeon HD 7750
Intro
The Radeon HD 6850 has a clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 960 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.Compare those specs to the Radeon HD 7750, which uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1125 MHz on this specific model. It features 512 SPUs along with 32 TAUs and 16 ROPs.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 6850 |
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2395 points |
| Radeon HD 7750 |
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2240 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7750 |
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55 Watts |
| Radeon HD 6850 |
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127 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 6850 should perform a lot faster than the Radeon HD 7750 in general. (explain)
| Radeon HD 6850 |
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128000 MB/sec |
| Radeon HD 7750 |
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72000 MB/sec |
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Texel Rate
The Radeon HD 6850 will be much (about 45%) faster with regards to AF than the Radeon HD 7750. (explain)| Radeon HD 6850 |
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37200 Mtexels/sec |
| Radeon HD 7750 |
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25600 Mtexels/sec |
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Pixel Rate
The Radeon HD 6850 should be a lot (approximately 94%) better at FSAA than the Radeon HD 7750, and should be capable of handling higher screen resolutions more effectively. (explain)| Radeon HD 6850 |
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24800 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
Radeon HD 6850Amazon.com
Check prices at:
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Radeon HD 7750Amazon.com
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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 6850 | Radeon HD 7750 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | October 2010 | February 2012 |
| Code Name | Barts Pro | Cape Verde Pro |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 775 MHz | 800 MHz |
| Memory Speed | 4000 MHz | 4500 MHz |
| Power (Max TDP) | 127 watts | 55 watts |
| Bandwidth | 128000 MB/sec | 72000 MB/sec |
| Texel Rate | 37200 Mtexels/sec | 25600 Mtexels/sec |
| Pixel Rate | 24800 Mpixels/sec | 12800 Mpixels/sec |
| Unified Shaders | 960 | 512 |
| Texture Mapping Units | 48 | 32 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 1700 million | 1500 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, 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 calculated by multiplying the total number of texture units of the card 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 in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 6850Amazon.com
Check prices at:
|
Radeon HD 7750Amazon.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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