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AMD's modular chip is not as good as the original multi-core delay, but the benefits are still too much, the manufacturing difficulty is greatly reduced, and the yield is greatly improved. The latest news that AMD's Zen 2 core yield reached 70%, to know that Intel's 28-core processor yield is said to be only 35%, AMD 64-core processor yield is twice that of Intel products, which is very cost-effective The big gap is gone.
As we have already introduced in the previous article, AMD further developed the modular CPU on the 7nm Zen2 processor. This 64-core Rome actually has 8 CPU cores, each of which includes 8 CPU cores. The 64 cores are manufactured using a 7nm process, while the IO cores are manufactured using a 14nm process, incorporating DDR memory masters, PCIe masters, etc. These cells have low process requirements.
This chiplets design will become more and more popular. It can be flexibly matched with chips of different processes and different architectures. The cost is that the delay will increase, but it is still worthwhile compared with the benefits obtained because of the manufacture of multiple small core chips. The difficulty is much lower than the production of the original multi-core chip, and the yield will be greatly increased to control the cost.
Italy Bitchips website recently broke the news quoted sources as saying, AMD's Zen 2 CPU core area of about 88mm2, complete core yield is very high, reaching 70 percent - two years ago, they exposed the first generation AMD core 14nm Zen The yield, the statement given at the time is 80% yield, compared to the 7nm Zen 2 core yield seems to be low, but to consider TSMC's 7nm high-performance process is not mature enough, the yield will improve in the future, When AMD uses GF 14nm, the latter has matured from Samsung's process.
70% of the yield is also compared with friends, the original said that Intel's 28-core processor yield is only 35%, so AMD's 64-core processor is twice the Intel 28-core processor yield, This is reflected in the considerable difference in cost, which means that AMD's 64-core processor not only surpasses Intel in terms of core number and performance, but also can't match the cost in the latter. It is more emboldened when it comes to price war.
The high yield of 7nm Zen2 is not only beneficial for the 64-core Roman processor, but also helpful for the desktop version of the 7nm Ruilong 3000, and the latter has fewer cores and smaller IO cores, so the IO core +8 The cost of the core CPU core will theoretically be lower.
In Bitchips more broke the news a few days ago, they mention AMD will not raise prices 7nm Dacentrurus 3000 processors, AMD will not make the mistake before the former CEO Hector Ruiz. Speaking of this, many players remember how AMD was in the P4 era, but don't forget that when the performance of the AMD Athlon processor dominated, the price was also rising.