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Radeon HD 6750 1GB vs Radeon HD 6870
Intro
The Radeon HD 6750 1GB has a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 Texture Address Units, and 16 ROPs.Compare all of that to the Radeon HD 6870, which features GPU clock speed of 900 MHz, and 1024 MB of GDDR5 RAM running at 1050 MHz through a 256-bit bus. It also is made up of 1120 Stream Processors, 56 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6750 1GB |
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86 Watts |
| Radeon HD 6870 |
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151 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 6870 should in theory be much better than the Radeon HD 6750 1GB in general. (explain)
| Radeon HD 6870 |
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134400 MB/sec |
| Radeon HD 6750 1GB |
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64000 MB/sec |
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Texel Rate
The Radeon HD 6870 is much (more or less 93%) more effective at texture filtering than the Radeon HD 6750 1GB. (explain)| Radeon HD 6870 |
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50400 Mtexels/sec |
| Radeon HD 6750 1GB |
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26100 Mtexels/sec |
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Pixel Rate
The Radeon HD 6870 will be much (approximately 148%) more effective at full screen anti-aliasing than the Radeon HD 6750 1GB, and should be capable of handling higher screen resolutions more effectively. (explain)| Radeon HD 6870 |
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28800 Mpixels/sec |
| Radeon HD 6750 1GB |
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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
Radeon HD 6750 1GBAmazon.com
Check prices at:
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Radeon HD 6870Amazon.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 6750 1GB | Radeon HD 6870 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 2011 | October 2010 |
| Code Name | Juniper Pro | Barts XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 725 MHz | 900 MHz |
| Memory Speed | 4000 MHz | 4200 MHz |
| Power (Max TDP) | 86 watts | 151 watts |
| Bandwidth | 64000 MB/sec | 134400 MB/sec |
| Texel Rate | 26100 Mtexels/sec | 50400 Mtexels/sec |
| Pixel Rate | 11600 Mpixels/sec | 28800 Mpixels/sec |
| Unified Shaders | 720 | 1120 |
| Texture Mapping Units | 36 | 56 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1040 million | 1700 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 6750 1GBAmazon.com
Check prices at:
|
Radeon HD 6870Amazon.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
One Response to “Radeon HD 6750 1GB vs Radeon HD 6870”I didn't realize that the 6850 was that much better than the 6750, and the 6850 is only 20$ more than the 6750 on newegg (after mail-in rebate). definitely worth it in my opinion