HPE ProLiant DL320 Gen12 Processors
Genuine HPE-qualified Intel Xeon 6 processors for the HPE ProLiant DL320 Gen12, new and refurbished, alongside the heat sink kits they require. This is a single-socket 1U server — one processor sets core count, memory speed, and how much cooling the chassis carries.
DL320 Gen12 Processor Specifications
- Sockets: one — the configuration steps pair one processor model with a matching heat sink kit
- Efficient-core (E-core): 64 cores on the 6710E up to 144 on the 6766E and 6780E, at 205W to 330W
- Performance-core (P-core): 8 cores on the 6507P up to 86 on the 6787P, at 150W to 350W, with Mainline models from 12 to 64
- Single Socket (Rich I/O): 16 cores on the 6511P up to 80 on the 6781P, listed with zero UPI links
- Memory support: DDR5 at 6400 MT/s at 1 DIMM per channel and 5200 MT/s at 2 DIMMs per channel — the E-core 6710E, 6731E, and 6746E are listed at 5600 MT/s
- Cooling: above 185W TDP a processor requires the performance heat sink and seven high-performance fan kits; above 270W, the closed-loop liquid cooling heat sink and seven closed-loop fan kits
Order the cooling with the processor. Above 185W TDP a processor requires the performance heat sink and seven high-performance fan kits; above 270W it requires the closed-loop liquid cooling heat sink and seven closed-loop fan kits. Fan kits are sold one fan at a time.
Which processors does the DL320 Gen12 support?
| Family | Cores listed | TDP range | Best for |
|---|---|---|---|
| Xeon 6 Efficient-core (E-core) | 64 to 144 | 205W to 330W | Density and performance per watt |
| Xeon 6 Performance-core (P-core) | 8 to 86 | 150W to 350W | Per-core speed, license-bound workloads |
| Xeon 6 Mainline | 12 to 64 | 150W to 330W | General-purpose builds |
| Xeon 6 Single Socket (Rich I/O) | 16 to 80 | 150W to 350W | PCIe-lane-hungry builds, including GPU |
The 144-core 6780E puts 144 cores in 1U — at 330W, in the bracket that calls for closed-loop liquid cooling. At the other end, the 8-core 6507P at 3.5GHz is the license-optimized choice. The GPU CTO server requires a Rich I/O CPU, for enough PCIe lanes to feed the slots and drive cages.
Choosing the Right DL320 Gen12 Processor
- Read the TDP first. Above 185W you need the performance heat sink and high-performance fans; above 270W, the closed-loop liquid cooling heat sink and fan kit.
- Fan kits are sold one fan at a time and seven are required per server — see excessive fan noise in HPE ProLiant servers.
- E-core for throughput, P-core for clock. E-core models start at 64 cores and reach 144; P-core models start at 8 with much higher base clocks.
- The CPU sets your memory speed. Check the DDR5 column for your model before ordering kits — see DL320 Gen12 memory.
Complete Your DL320 Gen12 Build
The processor gates the build: start with DL320 Gen12 memory, then drives, storage controllers, networking, and power supplies, or the full DL320 Gen12 parts page. Neighbors: DL320 Gen11 processors and DL380 Gen12 processors. Catalog-wide: HPE parts by server model.
DL320 Gen12 Processors FAQ
What processors does the HPE ProLiant DL320 Gen12 support?
Intel Xeon 6 processors in one socket. The QuickSpecs list Efficient-core (E-core) models from 64 to 144 cores, Performance-core (P-core) models from 8 to 86, Mainline models from 12 to 64, and Single Socket Rich I/O models from 16 to 80.
What is the maximum core count of the DL320 Gen12?
144 cores, from a single Efficient-core processor - either the 6766E at 250W or the 6780E at 330W. This is a one-socket server, so that figure is the whole machine.
Can I install two processors in a DL320 Gen12?
No. It is a single-processor 1U server, and the configuration steps have you choose one processor model. That CPU serves all 16 DIMM slots, both PCIe 5.0 x16 slots, and the OCP slots.
Do DL320 Gen12 processors come with heat sinks?
No - the heat sink is a separate selection matched to the processor's rated wattage. The QuickSpecs require the performance heat sink for processors above 185W TDP and the closed-loop liquid cooling heat sink for processors above 270W.
What is the difference between E-core and P-core Xeon 6 in this server?
Core design. Efficient-core models trade per-core clock for core count, starting at 64 cores and reaching 144. Performance-core models start at 8 cores with much higher base clocks, up to 86 at the top. Both are supported on this platform.
Which DL320 Gen12 processor do I need for a GPU build?
A Rich I/O model. The QuickSpecs state the GPU CTO server requires a Rich I/O CPU to support sufficient PCIe lanes for the PCIe slots and drive cages. The Single Socket Rich I/O models run from 16 to 80 cores.
✅ Looking for a specific DL320 Gen12 processor? Browse our full selection below.
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