Chieftec Navitas Gets a 450-Watt Update

First launched in 2013, Chieftec Navitas series of PSUs included five high-efficiency models of up to 1250 W power. This year the company has introduced four new editions to the family which are characterized by low power: 450 W, 550 W, 650 W, and 750 W. This update is called to satisfy the needs of unpretentious customers who require stability rather than records.



New Chieftec Navitas power supply units come equipped with a single +12V bus that covers 100% power. Hence, it’s possible to integrate the models into the latest system configurations. All of them correspond to 80 Plus Gold standard, achieving up to 87% efficiency in a wide range of operational conditions.


Their other peculiarities involve a fully modular cable system, the availability of a low-noise 120 mm fan, the support for Active PFC technology and all known protection features (i.e. OPP, OTP, UVP, OVP, SCP).


To continue, Chieftec Navitas GPM-450S ensures 450-watt power on +12V rail & up to …

HIS Starts Selling Radeon HD 7970 GHz Edition in US Market

Hightech Information System presents its own version of AMD's Radeon HD 7970 GHz Edition graphics card to the US hardware market. Codenamed Radeon HD 7970 IceQ X2 GHz Edition, this card is characterized by the integration of the most up-dated technologies and high-end components. The model is based on Tahiti XT chip developed under Graphics Core Next architecture template (28 nm technological process).



HIS Radeon HD 7970 IceQ X2 GHz Edition takes blue printed circuit board designed for PCI Express 3.0 x16 bus as the basis. It is distinguished by the implementation of the reinforced power subsystem and by the compatibility with DirectX 11.1 technology. The employed GPU houses 2048 current processors. It operates at 1000 MHz frequency in nominal mode but can be accelerated to 1050 MHz during overclocking activity.


This graphics card accommodates 3GB of GDDR5 video memory which features 384-bit interface. Its frequency formula demonstrates up to 6000 MHz on standard …

New Thunderbolt Edition Graphics Card from Zotac

Zotac, a well-known designer of graphics solutions, has developed a unique in design graphics card. Entitled Zotac GeForce GTX 660 Thunderbolt, this card is heading a new Thunderbolt Edition series that is considered to be a more affordable product than Extreme series. The novice is equipped with an original PCB and an effective cooling system.



Zotac GeForce GTX 660 Thunderbolt is primarily characterized by a unique cooling system that consists of a large aluminum heatsink, three cooper heat pipes which get in contact with GPU from one side, and a couple of 100 mm fans. It should be mentioned that Zotac developers have realized a dedicated Eclean technology in their card that enables a hassle-free demounting of fans and top cover with the purpose of cleaning the cooler from dust.


GK106 chip, designed on Kepler architecture under 28 nm technological process, functions as the basic element in GeForce GTX 660 Thunderbolt card. It involves 960 CUDA cores and operates at 980 MHz …
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