AMD EPYC 9845 Makes For A Persuasive Upgrade With Performance & Energy Efficiency
With only a BIOS upgrade and changing the processor, the EPYC 9754 to EPYC 9845 upgrade proved to be an extremely compelling upgrade without any increased power demands and being compatible with the wide-range of servers/motherboards having a 400 Watt TDP limit.
Across all the 100+ benchmarks run, the EPYC 9845 had a 234 Watt average compared to 243 Watts with the EPYC 9754 Bergamo. The EPYC 9845 at its default TDP on this AMD Titanite server had a peak consumption of 345 Watts, compared to 398 Watts with the EPYC 9754. For those wanting great performance but concerned about maximizing efficiency, the AMD P-State EPP and Power Profile tuning led to 6.5% lower CPU power use on the EPYC 9845 1P.
The EPYC 9845 was running slightly cooler on this AMD EPYC 2U server upgrade than with the EPYC 9754, as expected.
When taking the geometric mean of all the completed benchmarks, the upgrade from the EPYC 9754 to EPYC 9845 delivered 1.36x the performance. Very nice uplift with the same to slightly lower power consumption and being suitable for use in existing AMD Socket SP5 motherboards having a 400 Watt power limit. That's also while still using DDR5-4800 memory. As shown in prior Turin with DDR5-4800 vs. DDR5-6000 memory benchmarks, there can be very sizable gains with the faster memory -- all the more so too for the EPYC 9845 given the increased number of cores contending for the twelve memory channels. Simply upgrading the BIOS and swapping the CPU without having to resort to a memory upgrade and any increased power/cooling requirements while achieving 1.36x the performance is a very persuasive generational upgrade. Plus with the AMD EPYC 9005 server processors is the AMD P-State support for allowing greater energy efficiency if desired.
Those wanting to go through all 100+ benchmarks in full can find them via this result page.
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