![]() ![]() Numerical terms for compound or complex features There are two more types of numerical prefixes in IUPAC organic chemistry nomenclature. However both the Chemical Abstracts Service and the Beilstein database use the alternative spelling eicosa. IUPAC prefers the spelling icosa- for the affix corresponding to the number twenty on the grounds of etymology. In compound affixes, the numeral two is represented by do- except when it forms part of the numbers 20 ( icosa-), 200 ( dicta-) or 2000 ( dilia-). In forming compound affixes, the numeral one is represented by the term hen- except when it forms part of the number eleven ( undeca-): henceĢ41 → hen- ( 1) + tetraconta- ( 40) + dicta- ( 200) = hentetracontadicta- 411 → undeca- ( 11) + tetracta- ( 400) = undecatetracta- The numeral two While the use of the affix mono- is rarely necessary in organic chemistry, it is often essential in inorganic chemistry to avoid ambiguity: carbon oxide could refer to either carbon monoxide or carbon dioxide. For example:ĥ48 → octa- ( 8) + tetraconta- ( 40) + pentacta- ( 500) = octatetracontapentacta- 9267 → hepta- ( 7) + hexaconta- ( 60) + dicta- ( 200) + nonalia- ( 9000) = heptahexacontadictanonalia- The numeral one The prefixes are given from the least significant decimal digit up: units, then tens, then hundreds, then thousands. The affixes are derived from both Latin and Greek. Another possibility is that these 'Cascade' family processors will fail to launch this year as the associated memory tech, 'Apache Pass' may not materialise until the following year.The numerical multiplier (or multiplying affix) in IUPAC nomenclature indicates how many particular atoms or functional groups are attached at a particular point in a molecule. However the source says that the footnotes signal that the launch window of the Cascade Lake-SP and Cascade Lake-X desktop offshoot is H2 2018. In the chart it looks like these processors will arrive at the beginning of Q3. The last slide I've reproduced from the ten published by ComputerBase, shows the timing for the release of the Purley Refresh, AKA Cascade Lake-SP. These 'T' processors are due around April. Each of these has a 35W TDP (rather than 65W) by implementing tweaked (slower) base and turbo clock speeds. The Core i7-8700T, Core i5-8500T, and Core i3-8100T are energy efficient parts based upon their brethren. Moving down the chart you will observe some new 'T' suffix chips added to the lineup of 8 th gen Intel Core processors. In the next chart we can see a pair of new Xeon Coffe Lake-E processors with 6- and 4-cores, both with hyperthreading available. The Intel Xeon E-2176M with base/boost 2.7/4.4GHz and 6C/12T configuration. The new i7 is a 6C/12T chip, while the i5 is a 4C/8T chip.Īnother processor highlighted as a new entrant on the chart is for mobile workstations. Both of these are parts are configured with Hyperthreading and destined for laptops in Q2 2018. Advance warning: some of the slides are quite hard to read, even though I have embedded some here full sized (click to zoom).Ĭonsidering the new mobile processors first, Intel is readying the Core i7-8850H with base/boost 2.6/4.3GHz, and the Core i5-8400H with base/boost 2.5/4.2GHz. The slides have made their way onto the net via German tech site ComputerBase. ![]() Other slides reveal that Coffee Lake-E and Cascade Lake-SP processors are on their way. According to new Intel roadmaps leaked online, Intel is readying a new wave of processors that would include hexa-core parts for laptops. ![]()
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