Nvidia GeForce GTX 780 Ti Graphics Card Official Release

After a line of rumors and leaks, Nvidia has officially introduced its latest powerful graphics card, codenamed GeForce GTX 780 Ti. Thanks to the implementation of a full-fledged GK110 core and the increase of clock frequencies, the card is going to compete with GTX Titan model, as well as with a top-tier Radeon R9 290X from AMD. In view of such efficiency, its recommended price goes up to $700.



The GeForce GTX 780 Ti is equipped with GK110 GPU that contains 2880 stream processors (GTX Titan features 2688 of them), 7.1 billion transistors, 48 ROPs, and 240 TMUs with the support for FP16/FP32 trilinear filtration. The core operates at 875 MHz (nominal) and 928 MHz (overclocked) frequencies. All major components are allocated on a black PCB, equipped with PCI Express 3.0 x16 bus. The incorporated GDDR5 modules with 384-bit interface (overall capacity – 3 GB) run at 7008 MHz with the bandwidth of 336 Gb/sec.


Power supply is realized via a single 8-pin and a single 6-pin …

Shuttle Offers a New Stylish NAS Storage Omninas KD22

Shuttle, an eminent Taiwanese developer of mini-PCs and barebone-systems, replenishes its production line with a new NAS, entitled Omninas KD22. The storage features a stylish, solid aluminum case, painted in white, and a large blue button that is responsible for the hot swapping of the drives. Generally, the case can accommodate a pair of 3.5-inch (or 2.5-inch) SATA drives, which support such configurations as JBOD and RAID 0/1.



The heart of Omninas KD22 is Marvell 88F6707 processor that runs at 1.2 GHz. The storage is furnished with 512 MB RAM and might offer up to 8TB of disc space. Being primarily a network-attached storage, the product is able to serve as a media-server as well, supporting iTunes, DLNA, BT, FTP server and print server. Additionally, there is a possibility for several different ways of local data transfer.


In order to fully realize an operational potential, Shuttle equips the model with a card-reader for SD cards with automatic copying options, three …

Modular Power Supply 650W Chieftec A80

Evaluating the effectiveness of modern computer power supplies, the most attention is paid to their coefficient of performance (COP) at a given load — usually means of 20%, 50% and 100%. At the same time, not less important requirement, established by standard 80PLUS should be considered. That means — the preservation of this level of performance for all occurring in the world supply voltage variations, that is in the range of 100-240 V.



The standard rules of 80PLUS at different levels (Basic, Bronze, Silver, Gold, Platinum, etc.) are performed for two voltage 115 V and 230 V. In both cases, the normalized PS should show the efficiency of not less than specified for each category level. Not usual power supply CTG-650C model of the new A-80 series from the Chieftec company is interesting in that it has officially claimed efficiency of 85% or more, but only for nets 220-240 V.


As the advantages of such solution can immediately be noted a lower price, due to less stringent …
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