P73355-B21 — HPE EPYC 9745 2.4GHz 128 Core Socket SP5 Server CPU
MPN: P73355-B21|By: HPE
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Product overview
HPE lists P73355-B21 as an EPYC 9745 2.4GHz 128 Core socket SP5 Server CPU. A processor upgrade is constrained by socket, chipset and BIOS revision, and a mismatched stepping will not post. This part is 128-core. We check the platform's supported-CPU list against your service tag before quoting.
Ask for the datasheet and firmware notes with the quote; we would rather you check our claim than take it.
Featuring
- Core Count
- 128
- Processor Family
- EPYC 9745
- Manufacturer
- HPE
Interfaces / Ports
- Clock Speed
- 2.4GHz
- CPU Socket
- Socket SP5
Physical characteristics
- Product Type
- Server Processors
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Specifications for P73355-B21 as published by HPE. Where a value is absent it is because we could not verify it, not because it does not exist — ask and we will check.
Where the HPE P73355-B21 is deployed
- Like-for-like replacement of P73355-B21 in an existing system
- Populating the second socket on a single-CPU server
- Consolidating licensed workloads onto fewer, larger cores
Who this part is for
- Integrators building to a specified CPU model and stepping
- 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
P73355-B21 is what is quoted and P73355-B21 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
BIOS revision checked
We confirm the firmware level the platform needs to recognise this processor, because a chip the BIOS does not know will not post.
Questions buyers ask about this part
- Is P73355-B21 genuine and is the warranty intact?
- Yes. Supplied new and unopened, so the manufacturer warranty and firmware update path stay supported. No grey-market stock and no refurbished units sold as new.
- Will P73355-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. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
Compare other Server Processors we stock
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.