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MagyarAMD Radeon HD 7420G vs AMD Radeon HD 7620G vs AMD Radeon HD 7400G
AMD Radeon HD 7420G
► remove from comparisonThe AMD Radeon HD 7420G or HD7420G is a processor graphics card in the Trinity APUs from AMD (A4-4300M). It is a low-range version with a reduced shader count / clock speed and will be featured in the A4 series. It should be based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and most likely wont offer a dedicated graphics memory.
Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).
The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.
The performance is somewhat below the Llano-based HD 6620G or in range of slower versions of the HD Graphics 4000. Most modern games of 2013/2014 won't run fluently even in (very) low settings; however, older and less demanding games can be played smoothly.
The APU is still manufactured in 32nm and as most A4 series parts should be classified with a 35 Watt TDP, the HD 7420G is best suited for laptops of 13-14-inch an up.
AMD Radeon HD 7620G
► remove from comparisonThe AMD Radeon HD 7620G or HD7620G is a processor graphics card in the Trinity APUs from AMD. It is built into the low voltage 25 Watt A10 versions (e.g. A10-4655M) and offers all 384 Radeon cores. However, the base and Turbo clock rate was reduced from 497/686 in the 7660G to 360/497 MHz in the 7620G. The architecture is based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and doesn't offer a dedicated graphics memory.
Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).
The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.
The performance (with dual channel memory) is in the mid range of HD 6500M series cards. Most games of 2012/2013 will only run fluently in (very) low settings.
The APU is still manufactured in 32nm and, as the low voltage parts are clasified at 25 Watt, good suited for small laptops (but not ultrathin, as the HD 7500G is intended for these subnotebooks).
AMD Radeon HD 7400G
► remove from comparisonThe AMD Radeon HD 7400G or HD7400G is a processor graphics card in the Trinity APUs from AMD (A4-4355M). It is a low-range version with a reduced shader count / clock speed and will be featured in the A4 series (ULV). It should be based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and wont offer a dedicated graphics memory.
Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).
The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.
The performance is in the range of the Llano-based HD 6480G and the Intel HD Graphics (Haswell). Older and less demanding games will run fluently in (very) low settings and resolutions.
The APU is still manufactured in 32nm and, as all A4 ULV parts, should be classified with a 17 Watt TDP. Therefore, the HD 7400G is best suited for small laptops of 11 inch an up.
| AMD Radeon HD 7420G | AMD Radeon HD 7620G | AMD Radeon HD 7400G | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Radeon HD 7000G Series |
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| Codename | Trinity | Trinity | Trinity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Architecture | Terascale 3 | Terascale 3 | Terascale 3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pipelines | 128 - unified | 384 - unified | 192 - unified | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Core Speed | 480 - 655 (Boost) MHz | 360 - 497 (Boost) MHz | 327 - 423 (Boost) MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shared Memory | yes | yes | yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| API | DirectX 11, Shader 5.0, OpenGL 4.2 | DirectX 11, Shader 5.0, OpenGL 4.2 | DirectX 11, Shader 5.0, OpenGL 4.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| technology | 32 nm | 32 nm | 32 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notebook Size | medium sized | medium sized | medium sized | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Date of Announcement | 01.06.2012 | 15.05.2012 | 01.09.2012 |
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- Average benchmark values for this graphics card
