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« เมื่อ: กรกฎาคม 05, 2011, 10:48:13 pm »
http://www.iboum.com/artkill/chipsets.php
Sigma Designs
The first 1080p HD Media Player chipset was the 863x from Sigma Designs. It spawned a whole series of Media Players from early 2008 onwards and it was these players that kick-started the Media Player revolution. Important players based on the 863x chipset are the original WDTV and the Popcorn A-100 NMT. The Sigma 863x is clocked at 300Mhz and has now been superseded by newer chipsets. Limitations of the Sigma 8635 are a slow user interface, limited DTS support, and a general lack of power.
Sigma released both Sigma 864x series and Sigma 865x series chipsets in late 2009, with the first player featuring the 8643 (Popcorn Hour C-200) shipping in September 2009, and the first 8655 player (WDTV Live) arriving in October 2009. The Sigma 864x and the 865x are related and similar chips, with the 864x being the more powerful.
The Sigma 864x is clocked at 667mhz. The 8643 and 8642 are identical except that the 8642 is a Macrovision version allowing for the ability to play copy protected DVD / Blu-Ray. The 864x chipset is significantly more powerful than the 865x series, despite the product number being lower.
The Sigma 865x is clocked at 500mhz. All the 865x variations are similar, with the 8655 being marginally the most powerful. The 8655 uses 64bit RAM whereas the 8653 uses 32bit and the 8655 has six video DACs whereas the 8653 has four. The only benchmarks we could find give identical scores so real world performance is likely identical. The 8654 and 8652 are copy protection (Macrovision) enabled versions of each allowing for the ability to play copy protected DVD / Blu-Ray. One notable deficiency in all the Sigma chips is the inability to play RMVB files.
Early 2011 will see updates to both the 865x and 864x chipsets. The 865x range will be upgraded with the 8656, offering Gigabit LAN. The Sigma 864x range will be similarly upgraded with the 8646 and 8647 chipsets. They will offer improved performance (800Mhz), Gigabit LAN, and hardware 3D video acceleration.
2011 will also see the introduction of the next generation of Sigma chipsets. The 865x range will then be suceeded by the 8670, offering a 700Mhz clock, 30% lower heat, and hardware 3D video acceleration. This is expected in mid 2011. Late 2011 will then see the introduction of the 8910 chipset incorporating VXP image processing for superior video quality, and 1080p 3D. This chip will be aimed at premium players and will be dual core running at 1200Mhz.
Sigma Designs Links
Sigma Chipset Comparison 2011
Sigma SMP8910
Sigma SMP8670
Sigma SMP8652
Sigma SMP8646
Sigma SMP8642
Sigma SMP863x
Sigma Designs
The first 1080p HD Media Player chipset was the 863x from Sigma Designs. It spawned a whole series of Media Players from early 2008 onwards and it was these players that kick-started the Media Player revolution. Important players based on the 863x chipset are the original WDTV and the Popcorn A-100 NMT. The Sigma 863x is clocked at 300Mhz and has now been superseded by newer chipsets. Limitations of the Sigma 8635 are a slow user interface, limited DTS support, and a general lack of power.
Sigma released both Sigma 864x series and Sigma 865x series chipsets in late 2009, with the first player featuring the 8643 (Popcorn Hour C-200) shipping in September 2009, and the first 8655 player (WDTV Live) arriving in October 2009. The Sigma 864x and the 865x are related and similar chips, with the 864x being the more powerful.
The Sigma 864x is clocked at 667mhz. The 8643 and 8642 are identical except that the 8642 is a Macrovision version allowing for the ability to play copy protected DVD / Blu-Ray. The 864x chipset is significantly more powerful than the 865x series, despite the product number being lower.
The Sigma 865x is clocked at 500mhz. All the 865x variations are similar, with the 8655 being marginally the most powerful. The 8655 uses 64bit RAM whereas the 8653 uses 32bit and the 8655 has six video DACs whereas the 8653 has four. The only benchmarks we could find give identical scores so real world performance is likely identical. The 8654 and 8652 are copy protection (Macrovision) enabled versions of each allowing for the ability to play copy protected DVD / Blu-Ray. One notable deficiency in all the Sigma chips is the inability to play RMVB files.
Early 2011 will see updates to both the 865x and 864x chipsets. The 865x range will be upgraded with the 8656, offering Gigabit LAN. The Sigma 864x range will be similarly upgraded with the 8646 and 8647 chipsets. They will offer improved performance (800Mhz), Gigabit LAN, and hardware 3D video acceleration.
2011 will also see the introduction of the next generation of Sigma chipsets. The 865x range will then be suceeded by the 8670, offering a 700Mhz clock, 30% lower heat, and hardware 3D video acceleration. This is expected in mid 2011. Late 2011 will then see the introduction of the 8910 chipset incorporating VXP image processing for superior video quality, and 1080p 3D. This chip will be aimed at premium players and will be dual core running at 1200Mhz.
Sigma Designs Links
Sigma Chipset Comparison 2011
Sigma SMP8910
Sigma SMP8670
Sigma SMP8652
Sigma SMP8646
Sigma SMP8642
Sigma SMP863x