AMD Opteron 6370P socket: Socket G34

What the Opteron 6370P is

The Opteron 6370P is a 16 core Warsaw server part on Socket G34 for dense private clouds. It runs 16 Piledriver cores and 16 threads on two eight core dies at 2.0 GHz base with turbo to 2.5 GHz. Sixteen megabytes of L2 plus 16 MB of L3 cover many guests. Power is 99 W on 32 nm from January 2014.

Sixteen cores maximize threads per socket for consolidation at fixed power. Lower base clocks trade latency for density versus the 12 core 6338P. Four HyperTransport links tie up to four sockets with NUMA effects. The 99 W envelope fits 4S racks better than 115 W and 140 W siblings.

DDR3-1600 ECC over four channels feeds the dies. ECC protects tenant data. Buyers pick the 6370P where thread count per rack at 99 W outweighs per core speed.

Socket and motherboard compatibility

The 6370P fits Socket G34 on SR5600 series 2S and 4S boards with Warsaw firmware. The FCLGA-1944 dual die package needs vendor qualified boards. Check stepping lists before expanding half populated systems.

Registered ECC DIMMs are mandatory for capacity. The socket SR5600 table covers Warsaw. SP3 boards never boot Opteron parts.

Memory, PCIe and cooling

DDR3-1600 ECC over four channels per socket suits dense guests. Full populations feed 16 threads. Balance memory per socket for NUMA fairness.

No CPU PCIe lanes exist. HyperTransport carries socket traffic with PCIe Gen 2 from the chipset. Dense VMs need fabric bandwidth.

Cooling uses 4S server heatsinks for 99 W continuous. Sixteen cores run warm under all core loads. Inlet control protects base clocks.

Upgrade paths

On the same socket, the AMD Opteron 6338P at 12 faster cores below suits latency work, with the same 99 W envelope. Both share G34 boards where listed.

A move to EPYC needs new SP3 boards. The 6370P leads Warsaw density at 16 cores per socket.