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Radeon HD 6850 vs Radeon HD 7750
Intro
The Radeon HD 6850 has a core clock speed of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It is made up of 960 SPUs, 48 TAUs, and 32 Raster Operation Units.Compare those specifications to the Radeon HD 7750, which features core speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs as well as 32 Texture Address Units 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
The Radeon HD 6850 should theoretically perform much 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 a lot (more or less 45%) better at 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
If running with high levels of AA is important to you, then the Radeon HD 6850 is a better choice, by a large margin. (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
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 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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 reach the max fill rate.
Radeon HD 6850Amazon.com
Check prices at:
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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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