![]() So nm is definitively has REAL impact on cost of a chip and amount of features (transistors) one can pack into a silicon die. More transistors = More CPU cores, GPU cores, etc. ![]() Robert Sole Follow on Send an email September 23. ![]() intel-size-transistor-amd irp Source: TPU. Node name and node size dont match for a long time. Intel transistors are not 14nm gate width and AMD processor transistors are not 7nm gate width. Or pack 16x amount of transistors into the same silicon area.ġ0 nm: 4.3 billion transistors on a die 87.66 mm2 This is what the nodes of Intel and AMD look like under a scanning electron microscope. When we get to 3 nm, they can build 16x amount of chips from the same 12 inch wafer. It can means more CPU, GPU cores, much larger L1, L2, 元 cache for the same chip size. If the process cost, yield is similar, the new chips "can be" 4x cheaper OR they can pack 4 times # of transistors into the same 1 cm^2 area. If "everything (mainly yield?) being equal ", they should be able build 4x amount of chips from the same silicon wafer. In conclusion, chip process advances sometimes make interesting news segments but user experiences assessed earliest in third party reviews are most essential as I am sure HEXUS readers know.When we get to 7nm, the today's chip that is using 1 cm^2 size silicon can probably be build with 0.25 cm^2 size silicon die. Again though, other factors make differences, like transistor type and chip architecture, that make direct comparisons difficult. Moving forward both Intel and TSMC are targeting approx 150MT/mm² for their upcoming 7nm and 5nm processes, respectively. Intel 10 nm and TSMC 7nm processes both produce dies with approx 90 million transistors per sq millimetre. The XXnm figure reflects process history more than progress, asserts the OC expert, and thus it isn't very useful as a metric to compare between chip makers.Īnother metric, probably worth closer consideration is transistor density, as revealed by the chip fabricators. Moreover, the relationship between node size, half-pitch, and gate length has significantly loosened since the early 1990s. Having looked at the above comparison, and highlighted it in his video, der8auer challenges the obvious conclusion that Intel 14nm+++ and TSMC 7nm are very similar in physical scale, reminding viewers that the above pictures don't fully represent the 3D structure that is so important to modern chip optimisation. Gate height is very similar but with the guidelines superimposed in the comparison below you can see that TSMC has indeed produced a processor with tighter spacing between the transistors In the main picture, above, you can see the first direct comparison you can see the transistor sizes of the two chips are very similar when the SEM zooms in to the same magnification. Well, the Intel 14 nm chip features transistors with a gate width of 24 nm, while the AMD/TSMC 7 nm one has a gate width of 22 nm (gate height is also rather similar). You can see much more about the background to this process, the SEM technology and der8auer's thinking in the previous two videos in this series Visiting Tescan Part 1, and Part 2. In order to get the Tescan labs SEM to make an effective comparison der8auer chose to slice into these halo consumer champs through their L1 cache sections. You probably expect the actual transistor size revealed by the SEM to be rather different… The former is an Intel 14nm+++ production chip and the latter made for AMD by TSMC on its 7nm process. This was an interesting exercise but in a recent YouTube video series der8auer has been leading up to a direct comparison between the current state-of-the-art Intel Core i9-10900K and the AMD Ryzen 9 3950X. Overclocking expert der8auer examined an Intel Core i7-8700K under a scanning electron microscope (SEM) a couple of years ago when that processor was one of Intel's best consumer offerings.
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