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Radeon HD 5850 vs Radeon HD 6870
Intro
The Radeon HD 5850 has a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is made up of 1440(288x5) SPUs, 72 TAUs, and 32 Raster Operation Units.Compare those specs to the Radeon HD 6870, which features clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 1120 SPUs along with 56 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
In theory, the Radeon HD 6870 should be 5% faster than the Radeon HD 5850 in general, because of its higher data rate. (explain)
| Radeon HD 6870 |
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134400 MB/sec |
| Radeon HD 5850 |
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128000 MB/sec |
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Texel Rate
The Radeon HD 5850 is a bit (about 4%) more effective at AF than the Radeon HD 6870. (explain)| Radeon HD 5850 |
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52200 Mtexels/sec |
| Radeon HD 6870 |
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50400 Mtexels/sec |
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Pixel Rate
The Radeon HD 6870 should be quite a bit (approximately 24%) faster with regards to AA than the Radeon HD 5850, and also able to handle higher resolutions while still performing well. (explain)| Radeon HD 6870 |
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28800 Mpixels/sec |
| Radeon HD 5850 |
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23200 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 5850Amazon.com
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Radeon HD 6870Amazon.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 5850 | Radeon HD 6870 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | September 30, 2009 | October 2010 |
| Code Name | Cypress PRO | Barts XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 725 MHz | 900 MHz |
| Memory Speed | 4000 MHz | 4200 MHz |
| Power (Max TDP) | 151 watts | 151 watts |
| Bandwidth | 128000 MB/sec | 134400 MB/sec |
| Texel Rate | 52200 Mtexels/sec | 50400 Mtexels/sec |
| Pixel Rate | 23200 Mpixels/sec | 28800 Mpixels/sec |
| Unified Shaders | 1440(288x5) | 1120 |
| Texture Mapping Units | 72 | 56 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 2154 million | 1700 million |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 5850Amazon.com
Check prices at:
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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
5 Responses to “Radeon HD 5850 vs Radeon HD 6870”[...] reference cards, MSI are very quiet but not amazing for overclocks. The 6870 has just come out - http://www.hwcompare.com/6024/radeon...adeon-hd-6870/ - It's theoretically slightly faster and it is better at tesselation. However - the cheapest I can [...]
[...] la 6870 sin lugar a dudas como ves : comparacion 5850 vs 6870/ es un pocomejor y consume mucho menos __________________ cpu:amd thuban x6 [...]
[...] [...]
[...] Re: Vale la pena el cambio de hd 5850 a hd 6870 en efecto, es una subida de un 8% osea no es favorable Radeon HD 5850 vs Radeon HD 6870 – Performance Comparison Benchmarks @ Hardware Compare [...]
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