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graphene lamps

02.04.2015

Lighting lamps made using graphene will soon go on sale in the UK. According to the developers, this is the first commercial application of a product with graphene.

Graphene lamps are expected to be slightly cheaper than LED lamps, which cost up to £15 in the UK. The light bulb with graphene-coated LED filament was created by Graphene Lighting with financial support from Canadian investors. One of the leaders of the company is the Vice-Chancellor of the University of Manchester, Professor Colin Bailey. Scientists of this university, physicists of Russian origin Andrey Geim and Konstantin Novoselov discovered graphene in 2004. For this discovery in 2010, physicists were awarded the Nobel Prize in Physics, and in 2011 they were awarded a knighthood by the Queen of Great Britain.

On March 20, the National Graphene Institute at the University of Manchester was opened, for the creation of which the UK government allocated 38 million pounds.

Graphene is a modification of a carbon compound. Thanks to its use, it is expected that the new lamps will have a longer service life, as well as about 10% less energy consumption.

The scope of graphene, which is stronger than steel, can be very wide. More than 35 companies around the world are working with the University of Manchester on projects using graphene. Graphene is already used as a component in the production of tennis rackets and skis. In the future, with its help, it is planned to increase the strength of aircraft frames, as well as to launch the production of more durable and lighter cars.

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Renoir 7nm Desktop APUs - Ryzen 4000G, PRO 4000G and Athlon PRO 3000G 22.07.2020

AMD has unveiled the Ryzen 4000G APUs for the AM4 desktop platform, sister to the well-established 7nm Ryzen 4000-series mobile chips. They are intended for the OEM segment and will not be available in retail stores, but in the future AMD promises to release some models of new APUs for the DIY market (with boards based on AMD 400 and 500 series chipsets).

The Renoir desktop APUs use the same 7nm die as their mobile cousins, with eight Zen 2 physical cores, 8MB of L3 cache, and eight Compute Units (CU) graphics on the improved Vega architecture. But if mobile Renoirs run into a 35-watt TDP, then desktop counterparts raise the bar to 65 watts, operate at higher frequencies and, therefore, their performance level is higher.

Renoir desktop APUs officially support DDR4-3200 RAM (while AMD used faster DDR4-3600 memory in performance tests), the x86-core frequency reaches 4,4 GHz in the case of the flagship Ryzen 7 4700G model, and the integrated GPU runs at 1700- 2100 MHz depending on the model.

Also introduced are the Ryzen Pro 4000 and Athlon Pro 3000 APUs for business-class ready-made computers. They are related to consumer models (the characteristics are completely identical), but at the same time they have advanced support and security technologies (full encryption of RAM and AMD Pro feature set).

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