PNY Debuts with GeForce GTX 750 and GTX 750 Ti Adapters

PNY, following an echelon of graphics cards manufacturers, has launched its own versions of Nvidia’s GeForce GTX 750 adapters. The PNY GeForce GTX 750 and PNY GeForce GTX 750 Ti are based on power-efficient Maxwell architecture that does not compromise on performance. Both new-comers operate at etalon frequencies and are thought to provide entry-level customers with some outstanding facilities. The preliminary retail price of models makes up $124 and $149 for GTX 750 and Ti version correspondingly.



The PNY GeForce GTX 750 employs GM107-300 GPU (512 CUDA cores), whereas the PNY GeForce GTX 750 Ti is equipped with GM107-400 GPU (640 CUDA cores). Both run at 1020 MHz (nominal) / 1085 MHz (boost) clock frequency. The products are differentiated also by the incorporation of video memory.


The first model involves 1 GB of GDDR5 memory; it uses 128-bit interface and runs at 1250 MHz (nominal) / 5000 MHz (efficient) frequency. At the same time, the second model involves 2 GB of …

MSI is preparing new model - Radeon HD 7970 with a water-block

The well-known in IT-maker Company MSI announced about appearance of new videoadapter based on GPU Tahiti XT chipset. Its diversity from the other Radeon HD 7970 can be seen with the naked eye, instead of an air cooler practically the entire surface of the PCB is covered with waterblock brand EK. It differs markedly from the original version, since it is designed specifically for the MSI R7970 Lightning model. Relation of adapter to the Lightning series is easily determined by the inscription at the interface connector PCI-E 3.0 x16, as well as non-standard set of video outputs (2x DVI, 4x Mini DisplayPort) and configuration of additional power connectors (2x PCI-E Power 8-pin).



Obviously, the accelerator is positioned as the Radeon HD 7970 GHz Edition and has a nominal frequency of at least 1050 MHz. Will MSI risk, like Sapphire did, and provide the card with 6 GB of memory? Probably not. The «advanced» composition of the printed circuit board and water block of full coverage …

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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Dell Inc. OptiPlex GX620 based on Dell Inc. 0HH807

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