AMD EPYC Genoa QCT Development Platform
QCT has been making these for generations. For STH readers, this will look very familiar. Here is the system:
The biggest feature is the dual AMD EPYC processors. Each processor has 12x DDR5 DIMM slots for a total of 24 DIMMs. All of these DIMM channels can be filled in a 1DPC configuration so adding DDR5 DIMMs increases performance.
A fun one here is also just that folks may have seen this looks a lot like another system we have seen recently.
Above is the AMD EPYC Genoa cooler in the QCT AMD reference platform. Below is the 4th Gen Intel Xeon Scalable cooler for the QCT Intel reference platform we used in Hands-on Benchmarking with Intel Sapphire Rapids Xeon Accelerators. Intel just said its Xeon Max parts will go up to 350W, AMD is at 360W with a cTDP of 400W so it has a denser fin design on the cooler, but it is fairly clear that a QCT design team was behind these similar cooler designs.
The new SP5 socket is absolutely massive. A big change is that the socket only has a single screw to hold down the CPU. AMD is changing in this generation to use the cooler’s screws to apply pressure to the chip. The chip is much larger so this is required to equalize pressure. AMD has six points on the cooler (eight in the QCT coolers because of the extra heat pipe heatsinks.)
One other exciting note about the system is that it supports OpenBMC. OpenBMC we are starting to see a lot more of. We reviewed our first server with OpenBMC earlier this week in our Supermicro ARS-210ME-FNR 2U Edge Ampere Altra Max Arm Server Review.
Next, let us get to the performance of the new chips.