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The first DDR4 memory module prototype was manufactured by Samsung and announced in January 2011. [a] Physical comparison of DDR, DDR2, DDR3, and DDR4 SDRAM Front and back of 8 GB [1] DDR4 memory modules. 2005: Standards body JEDEC began working on a successor to DDR3 around 2005, [14] about 2 years before the launch of DDR3 in 2007.
The DDR4 SDRAM is a high-speed dynamic random-access memory internally configured as 16 banks, 4 bank groups with 4 banks for each bank group for ×4/×8 and 8 banks, 2 bank groups with 4 banks for each bank group for ×16 DRAM. The DDR4 SDRAM uses an 8n prefetch architecture to achieve high-speed
LPDDR3 went mainstream in 2013, running at 800 MHz DDR (1600 MT/s), offering bandwidth comparable to PC3-12800 notebook memory in 2011 (12.8 GB/s of bandwidth). [11] To achieve this bandwidth, the controller must implement dual-channel memory. For example, this is the case for the Exynos 5 Dual [12] and the 5 Octa. [13]
The separate JEDEC standard Low Power Double Data Rate 5 (LPDDR5), intended for laptops and smartphones, was released in February 2019. [15] Compared to DDR4, DDR5 further reduces memory voltage to 1.1 V, thus reducing power consumption. DDR5 modules incorporate on-board voltage regulators in order to reach higher speeds.
The election signified a major political realignment in Sri Lanka. [10] Dissanayake's victory was the first time a third-party candidate was elected president. This was also the first election where neither of the top two candidates were endorsed by the United National Party or the Sri Lanka Freedom Party.
The current Parliament of Sri Lanka has 225 members elected for a five-year term. 196 members are elected from 22 multi-seat constituencies through an open list proportional representation with a 5% electoral threshold; voters can rank up to three candidates on the party list they vote for. The other 29 seats are elected from a national list ...
The president of Sri Lanka is the elected head of state and the chief executive of Sri Lanka. The president is a dominant political figure in the country. The office was created in 1972, as more of a ceremonial position. It was empowered with executive powers by the 1978 Constitution introduced by J. R. Jayewardene.
The Sri Lanka People's Freedom Alliance (SLPFA), led by Mahinda Rajapaksa, won a large majority in the 2020 Sri Lankan parliamentary election on 5 August 2020. [14] During their tenure, the government under President Gotabaya Rajapaksa and Prime Minister Mahinda Rajapaksa faced multiple crises, including the COVID-19 pandemic and an economic crisis, which culminated into widespread protests ...