On August 8, 2019, AMD released the second-generation EPYC Opteron processor in the 7nm process, which is the data center processor codenamed Rome Rome, up to 64 cores and 128 threads. This day is destined to be AMD's highlight moment. Write history.

Also consistent with the three generations of Ruilong, the second generation Xiaolong also uses the new Zen 2 architecture, single-threaded IPC (can be understood as architectural performance or single-core performance) an average of 15% increase, the average increase of IPC under 32 core 64 threads reaches 23%, while adding a large number of server, data center, cloud and other related features, interconnection, memory, security, power supply, etc. have been strengthened accordingly.

The second generation Xiaolong also uses the chiplet chiplet design, the base unit is still CCX, each CCX contains 4 cores (8 threads), then the two CCXs form a CCD, which is a CPU Die, which contains 8 cores (16 Threads), then each processor contains multiple CPU Dies, and up to 8 components make up 64 cores (128 threads).

Here we pay attention to the performance of the second-generation Opteron processor. The Phoronix website has just released the EPYC 7742 processor single-channel, dual-channel and EPYC 7502 single-channel, dual-channel performance test. The two processor specifications are as follows:

· EPYC 7742: 64 core 128 threads, reference frequency 2.25GHz, acceleration frequency 3.4GHz, TDP 225W, 256MB L3 cache, thousands of wholesale price of 6950 US dollars.

· EPYC 7502: 32 core 64 threads, reference frequency 2.50GHz, acceleration frequency 3.3GHz, TDP 180W, 128MB L3 cache, thousands of wholesale price 2600 US dollars.

In addition to AMD's first-generation EPYC Opteron 32-core processor, there are also Xeon Platinum 8280 and Xeon Gold 6138 products. The specifications are as follows:

· Xeon Gold 6138: 20 core 40 threads, reference frequency 2.0GHz, acceleration frequency 3.7GHz, TDP 125W, 27.5MB L3 cache, thousands of wholesale price 2612 to 2618 US dollars.

· Xeon Platinum 8280: 28 core 56 thread, reference frequency 2.7GHz, acceleration frequency 4GHz, TDP 205W, 38.5MB L3 cache, thousand wholesale price 10009 US dollars.

The following performance tests are for servers and data centers. They are different from the desktop X86 processors that we use. They are not comparable. They are not explained one by one. You can compare the results of AMD and Intel. Note that some of the results are as low as possible.

In a simple summary, AMD has finally been able to crush Intel processors in performance for 50 years, although this performance is largely achieved by 64 core vs. 28 cores, but AMD is less than 70. %, the number of cores is more than doubled, the performance is leading, the advanced technology support, expansion and other aspects are better than the opponents, so the results of the data center market buyers are still not satisfied?