Gaming Performance Comparison
In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8550G are very slightly better than the AMD Radeon HD 7640G.
The Radeon HD 8550G was released less than a year after the Radeon HD 7640G, and so they are likely to have similar driver support for optimizing performance when running the latest games.
The Radeon HD 8550G and the Radeon HD 7640G have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.
The memory bandwidth of the Radeon HD 8550G and the Radeon HD 7640G are the same, which means the Radeon HD 8550G and the Radeon HD 7640G have equal limitations when it comes to graphical data transfer.
Both the Radeon HD 8550G and the Radeon HD 7640G have 256 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the . Knowing that the shader performance of the Radeon HD 8550G is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.
The Radeon HD 8550G requires 35 Watts to run and the Radeon HD 7640G requires 35 Watts. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.
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| Core Speed | 515 MHz |  | vs | | 496 MHz |
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| Architecture | Terascale 3 | | | | Terascale 3: Trinity |
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| Notebook GPU | yes | | | | yes |
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| SLI/Crossfire | no | | vs | | no |
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| Dedicated | no | | vs | | no |
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| Release Date | 12 Mar 2013 | | | | 15 May 2012 |
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| GPU Link | GD Link | | | | GD Link |
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| Approved |  | | | |  |
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| Comparison | | | | | |
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| Memory | - | | vs | | - |
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| Memory Speed | 800 MHz |  | vs |  | 800 MHz |
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| Memory Bus | 128 Bit |  | vs |  | 128 Bit |
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| Memory Type | DDR3 |  | vs |  | DDR3 |
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| Memory Bandwidth | 25.6GB/sec |  | vs |  | 25.6GB/sec |
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| L2 Cache |
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| Comparison | | | | | |
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| Shader Processing Units | 256 |  | vs |  | 256 |
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| Actual Shader Performance | 132 |  | vs | | 127 |
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| Technology | - | | vs |  | 32nm |
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| Texture Mapping Units | - | | vs |  | 16 |
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| Texture Rate | - | | vs |  | 7.9 GTexel/s |
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| Render Output Units | - | | vs |  | 8 |
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| Pixel Rate | - | | vs |  | 4 GPixel/s |
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| Comparison | | | | | |
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| DirectX | 11.1 |  | vs | | 11 |
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| Shader Model | 5.0 |  | vs |  | 5.0 |
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| Open GL | 4.2 |  | vs | | 4.1 |
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| Max Resolution (WxH) | 2560x1600 |  | vs |  | 2560x1600 |
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| VGA Connections | 0 | | vs | | 0 |
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| DVI Connections | 0 | | vs | | 0 |
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| HDMI Connections | 0 | | vs | | 0 |
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| Comparison | | | | | |
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| Max Power | 35 Watts |  | vs |  | 35 Watts |
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| Recommended RAM | - | | | | - |
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| Recommended Screen Size | - | | | | - |
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| Recommended PSU | - | | | | - |
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| Performance Value | | |  | | |
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| Mini Review | Radeon HD 8550G is an integrated mobile GPU, first seen on the APU A8-5550M, based on the 32nm, Terascale 3 architecture.
It offer 256 Shader Processing Units, 16 TMUs and 8 ROPs, on a DDR3 memory interface of either a 128-bit bus width, if the laptop system RAM's is dual-channelled, or a 64-bit bus width, if not. The central units runs at 515MHz and goes up to 720MHz, in Turbo Mode. The memory clock can operate up to 800MHz, as the max memory supported by the CPU is DDR3-1600.
Its performance depends heavily on whether or not the memory is dual-channelled. Benchmarks put its performance on level with today's middle-class GPUs such as GeForce GT 625M or Radeon HD 7630M. Therefore, modern demanding games can be played with medium detail. | | | | Radeon HD 7640G is an integrated GPU on the fast-middle-class Trinity CPUs.
It's based on the 32nm Terascale 3 architecture and offers 256 Shader Processing Units, 16 TMUs and 8 ROPs. The memory interface will depend on whether or not the laptop's system RAM is dual channelled (128-bit if so, 64-bit, if not) and the operating memory clock can be up to 800MHz (max speed supported by the CPU). The central unit runs at 496MHz and will go up to 685MHz in Turbo Mode. Expect a TDP of up to 35 Watt.
Its performance is slightly above Intel HD 4000 Graphics but below previous in series - Radeon HD 7620G, despite the naming, due to the lesser Shaders count which proves useful in most of today's modern games.
Some of today's modern games can be playable using the Medium preset though the low preset will have to suffice for most of them. Extremely demanding games (e.g. Crysis 3) are playable but with reduced frame rates. |
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| Recommended CPU | - | | | | - |
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| Possible GPU Upgrades | - | | | | - |
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| GPU Variants | - | | | | - |
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