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Radeon HD 5850 vs Radeon HD 7850
Intro
The Radeon HD 5850 features a GPU clock speed of 725 MHz, and the 1024 MB of GDDR5 memory is set to run at 1000 MHz through a 256-bit bus. It also features 1440(288x5) SPUs, 72 Texture Address Units, and 32 ROPs.Compare that to the Radeon HD 7850, which features a core clock speed of 860 MHz and a GDDR5 memory speed of 1200 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
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130 Watts |
| Radeon HD 5850 |
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151 Watts |
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Memory Bandwidth
In theory, the Radeon HD 7850 should be 20% quicker than the Radeon HD 5850 in general, because of its higher bandwidth. (explain)
| Radeon HD 7850 |
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153600 MB/sec |
| Radeon HD 5850 |
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128000 MB/sec |
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Texel Rate
The Radeon HD 7850 should be just a bit (approximately 5%) more effective at AF than the Radeon HD 5850. (explain)| Radeon HD 7850 |
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55040 Mtexels/sec |
| Radeon HD 5850 |
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52200 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 7850 is the winner, but it probably won't make a huge difference. (explain)| Radeon HD 7850 |
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27520 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 7850Amazon.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 7850 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | September 30, 2009 | March 2012 |
| Code Name | Cypress PRO | Pitcairn Pro |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 725 MHz | 860 MHz |
| Memory Speed | 4000 MHz | 4800 MHz |
| Power (Max TDP) | 151 watts | 130 watts |
| Bandwidth | 128000 MB/sec | 153600 MB/sec |
| Texel Rate | 52200 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 23200 Mpixels/sec | 27520 Mpixels/sec |
| Unified Shaders | 1440(288x5) | 1024 |
| Texture Mapping Units | 72 | 64 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2154 million | 2800 million |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units 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 one second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 output rate is also dependant on quite a few 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 5850Amazon.com
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Radeon HD 7850Amazon.com
|
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
3 Responses to “Radeon HD 5850 vs Radeon HD 7850”[...] better performer as well as a better overclocker (if you overclock ofcourse). Check out this link- Radeon HD 5850 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare Please note that it is completely theoretical and the real world performance may differ. Also [...]
Hey Im looking at possibly upgrading my video card in couple of months.
I currently have radeon hd 5850 and was wondering whats the main difference when cards say core speed and memory speed?
I see cheaper cards on the market have the same core speed but are DDR2 instead of 3.
@Terrence .. core (clock) speed like any of the other measures of performance in gfx cards is all relative. You mention lesser cards having "the same core speed" .. and that's actually incorrect across each generation iteration of DDR & GDDR vRAM types. That's to say, a gfx card with 1GB of DDR2 vRAM will essentially perform no better than a card with 512MB's of GDDR3 vRAM. You see, the premise being that each generation of DDR roughly doubles the speed of the generation before. So, put another way, 1 GB of GDDR3 will perform at only half the speed of 1 GB of GDDR5. So, it's like this, DDR2 & DDR3?? Forget it .. they're yesterday's tech' - and a complete waste of time even thinking about (let alone discussing). If you're after a budget upgrade in the RED corner, i'd advise a HD6950 2GB - or better still a 6970, at the very least. If you're looking at the GREEN team, consider at least a GTX 480 or GTX 580. As all of those cards are getting relatively old now (but each still supporting DX 11 & all having GDDR5 vRAM), you should be able to pick up a bargain from either the GREEN or RED Team on any one of those cards i've named 😉