P73357-B21: HPE EPYC 9655 2.6GHz 96 Core Socket SP5 Server CPU
MPN: P73357-B21|By: HPE

Starting from
$12,145
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
Key specs
- Processor Family
- EPYC 9655
- Core Count
- 96
- Clock Speed
- 2.6GHz
- CPU Socket
- Socket SP5
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
P73357-B21 is an HPE EPYC 9655 2.6GHz 96 Core socket SP5 Server CPU. Thermal design power decides the heatsink, and the heatsink decides whether the chassis can take the processor at all. This one runs at 2.6GHz. Tell us the platform and we will quote the cooling that goes with it.
Tell us the deadline you are working to and we will say whether it is achievable before you commit to it internally.
Specifications
General
- Manufacturer part number
- P73357-B21
- Processor Family
- EPYC 9655
- Product Type
- Server Processors
- Manufacturer
- HPE
Technical specifications
- Core Count
- 96
- Clock Speed
- 2.6GHz
Interfaces & connectivity
- CPU Socket
- Socket SP5
Published specifications for P73357-B21. Anything not listed here we will confirm against the manufacturer's documentation before quoting, because we would rather answer the question than let you assume.
Where the HPE P73357-B21 is deployed
- Like-for-like replacement of P73357-B21 in an existing system
- Populating the second socket on a single-CPU server
- Replacing a processor after a board or CPU fault
Who this part is for
- Teams upgrading compute inside an existing chassis rather than replacing it
- Procurement sourcing a like-for-like CPU replacement under fault
- Engineers matching a second socket to the processor already fitted
What you get ordering this from us
Ordered by part number
The order is placed against P73357-B21, not against a description of it, so there is no room for a substitution you did not agree to.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Questions buyers ask about this part
Is P73357-B21 genuine and is the warranty intact?
Yes, new and sealed, with the HPE warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
Will P73357-B21 work in my server?
Send the service tag. We check the platform's supported-CPU list and the BIOS revision it requires, and where the board is dual-socket we confirm what is in the other socket. A stepping the firmware does not recognise will not post.
Do you accept purchase orders and quote at volume?
Yes, POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
Compare other Server Processors we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Intel Xeon Silver 4410Y 12-Core Server Processor LGA 4677 Sapphire Rapids | Intel | Cores / Threads: 12C / 24T | In Stock | $715 |
| AMD EPYC 9124 16-Core Server Processor Socket SP5 Genoa | AMD | Cores / Threads: 16C / 32T | In Stock | $1,430 |
| Dell Xeon Silver 4310 12-Core Processor Kit with Heatsink for PowerEdge Servers | Dell Technologies | Cores / Threads: 12C / 24T | In Stock | $545 |
| HP Xeon E5-2620 v2 6-Core Processor Kit with Heatsink for ProLiant Gen8 Servers | HP | Cores / Threads: 6C / 12T | In Stock | $55 |
| Lenovo ThinkSystem Xeon Silver 4310 12-Core Processor Option Kit with Heatsink | Lenovo | Cores / Threads: 12C / 24T | In Stock | $540 |
| Noctua NH-U14S TR5-SP6 140mm CPU Cooler | Noctua | CPU Socket: SP6 | In Stock | Request quote |
Browse all Server Processors or everything we stock from HPE.
Specifying a system, not just the part?
On a training or inference node the host CPU is sized around the accelerators it feeds, not chosen on its own.
