Xeon 6776P: What "DGX B300 Companion CPU" Means for Buyers

Most server processors are sold on their specifications. The Intel Xeon 6776P is sold on a designation. It is the companion processor for the NVIDIA DGX B300, and that single fact explains almost everything a buyer will encounter when trying to source it: why it rarely appears as an open-market part, why the supply that does appear is usually not what it claims to be, and why the sensible question is often not "can I get a 6776P" but "do I actually need one".

This note is about procurement reality, not performance. Intel recommended customer prices quoted below are list reference values from Intel ARK; they are not transaction prices and not a market range.

One Line in a GPU Vendor's Bill of Materials

Start with the specification, because the specification alone does not justify the part.

The 6776P is a Granite Rapids P-core processor on Intel 3: 64 cores, 128 threads, 2.3 GHz base, 3.9 GHz boost, 336 MB of L3, 350 W TDP, 8 memory channels supporting DDR5-6400 and MRDIMM-8800, and 88 PCIe 5.0 lanes, in the FCLGA4710 socket. It launched in Q2'25 at an Intel recommended customer price of $11,060.

Now put it next to the part directly above it in the same family. The Xeon 6767P has the same 64 cores, the same 128 threads, the same 336 MB of L3, the same 350 W TDP, the same socket, the same 8 channels, the same 88 PCIe 5.0 lanes and the same MRDIMM-8800 support. Its boost clock is identical at 3.9 GHz. Its base clock is higher, at 2.4 GHz against 2.3 GHz. And Intel lists it at $10,746 against $11,060.

On paper, the more expensive part is the slower one at base clock. That is the tell. The 6776P's value is not in the datasheet; it sits in an OEM qualification, where a specific processor SKU is validated for a specific system and everything in that system was designed and tested as a unit.

What OEM Allocation Actually Does to Supply

When a processor exists to fill a slot in an OEM system, three things follow.

Channel priority changes. Silicon that would otherwise flow into distribution is committed to the system builder. OEM and tray allocation moves first; open-market availability is what is left over. On a part like this, "left over" is frequently nothing, and when it is something, it arrives in small lots with unclear provenance.

Pricing stops being published. There is no market price for a part that does not trade. Any number attached to a 6776P outside an OEM system quote is either a list reference, a single seller's asking price, or an invention.

Part-level support gets conditional. Processor support, firmware validation and platform-level warranty expectations attach to the validated system configuration. A processor pulled out of that context is a processor without it.

For a buyer, the consequence is simple. If your requirement is a DGX B300 system, the processor comes with it. If your requirement is a processor, you are probably not looking for a 6776P at all.

ES and QS Parts: Why This Model Attracts Them

The tighter the OEM allocation on a part, the more attractive the engineering-sample route becomes to sellers. Understanding the two sample categories is the single most useful piece of knowledge for a buyer here.

ES, engineering sample: pre-production silicon, distributed by Intel for evaluation. These parts typically run at lower clocks than the shipping specification, may expose engineering-only features, and come with markings that identify them as samples. Intel does not sell them, they are not supported for production, and their presence in a commercial listing is a red flag on its own.

QS, qualification sample: a later-stage sample that is much closer to the shipping part and often indistinguishable in a benchmark run. QS parts are the dangerous category precisely because they work. They carry no production support, and putting one in a production tier means accepting firmware and stability risk with no recourse.

There is a third and worse case: a part that is neither, but is labelled as a genuine 6776P. On a model where OEM allocation is tight and prices are high, relabelled parts and misrepresented samples find a market. The failure mode is not a dead processor at delivery; it is a processor that behaves correctly through burn-in and produces a platform-level fault months later, when the traceability is gone.

None of this is unique to the 6776P. It is amplified on parts where the honest supply is thin, because scarcity is what makes misrepresentation profitable. The discipline in our memory-inflation procurement note applies here with less margin for improvisation than usual.

A Self-Defence Checklist

Ask what the part is, not just what it costs. OEM, tray, boxed, or sample. A supplier who cannot answer this precisely is not a supplier you can build a production node on.

Treat any engineering or qualification sample as a non-production part. They exist and they trade. They should not be specced into a production tier no matter how the price compares.

Request the markings and a photograph of them. The processor's own markings, legible, before purchase. A reasonable request on any four-figure processor, and a routine one on a scarce part.

Confirm the socket, always. Granite Rapids P-core is FCLGA4710; the previous two Xeon Scalable generations are LGA4677. A listing or quotation that mixes the two is wrong somewhere, and on a scarce model the error usually points away from the genuine part. Our Xeon 6 6700P buying guide walks through the family-level socket check.

Never accept a warranty that is verbal. Every processor HKCHL ships carries a one-year warranty, written on the quotation. On a scarce OEM part, a written warranty separates a transaction from a bet.

Do not confuse an Intel list reference with a transaction price. Intel recommended customer price is a published list value. It tells you where the part sits in the family, not what it costs, because on this model there is no open market to price it from.

The Cheaper Question to Ask First

Before hunting a scarce part, confirm the requirement.

If you are building or populating a DGX B300, you are not really choosing a processor; the platform has already chosen one. Buy the system through a channel that can stand behind the whole configuration.

If you are specifying a new Granite Rapids node and you want 64 P-cores with MRDIMM-8800 bandwidth, the 6767P gives you the same core count, cache, socket and memory technology with a higher base clock, for less Intel list price. The 6776P earns its price only inside the platform it was qualified for.

The Xeon 6760P covers the same socket and core count without the MRDIMM path, at 330 W and DDR5-6400 only. If your workload is not bandwidth-bound, that is the value end of the family. Buyers weighing a DDR4 platform extension against a move should start from the Xeon Gold 6530 and Platinum 8358P comparison.

Frequently Asked Questions

What does "DGX B300 companion CPU" actually mean for buyers?

It means the 6776P is designated as the companion processor for the NVIDIA DGX B300 platform, so its supply is oriented toward OEM system builds rather than open-market distribution. Practically: expect little or no bare-part availability, expect no defensible market price, and expect the honest route to be a system purchase rather than a processor purchase. It does not mean the processor is faster than its siblings.

6776P versus 6767P: is the more expensive part faster?

No. Both are 64 cores and 128 threads on Intel 3 in FCLGA4710, with 336 MB L3, 350 W TDP, 8 memory channels supporting DDR5-6400 and MRDIMM-8800, and 88 PCIe 5.0 lanes. Boost clock is 3.9 GHz on both. The 6767P's base clock is 2.4 GHz against the 6776P's 2.3 GHz, so the cheaper part leads on base clock by 0.1 GHz. Intel recommended customer price is $10,746 for the 6767P and $11,060 for the 6776P. The premium reflects the OEM qualification, not a performance delta.

How do I tell an ES or QS sample from a production 6776P?

Ask for the part type first and the markings second. Engineering samples and qualification samples are pre-production silicon that Intel does not sell for production use and does not support in a production tier; QS parts in particular often perform close enough to production that a benchmark will not expose them. Because a sample may be functionally difficult to distinguish, the safeguard is documentation rather than testing: a declared part type on the quotation, legible markings before purchase, and a written warranty. Treat any sample as unsuitable for a production tier.

Should I buy a 6776P for a non-DGX server build?

Usually not, unless the platform you are populating specifically requires that SKU. For a general Granite Rapids build, the 6767P delivers the same 64 cores, 336 MB L3, 350 W, MRDIMM-8800 path and socket at a lower Intel list price and a slightly higher base clock. The 6776P makes sense when the platform is the reason, and rarely otherwise.

Why is the 6776P so hard to source?

Because its allocation is committed to OEM system builds. When silicon is designated for a validated system, the distribution channel is not the priority path, so open-market supply is residual at best. Residual supply on a high-value part is also where misrepresented and sample parts concentrate, which is why the sourcing discipline matters more here than on a commodity SKU.

Our Verdict for 2026

Treat the 6776P as a system part, not a catalogue part. If you need it, buy it in the platform it was qualified for, and insist on a declared part type, legible markings and a written one-year warranty. If you are speccing a server and want 64 Granite Rapids P-cores with MRDIMM bandwidth, the 6767P is the same silicon tier for less money. The most expensive mistake here is not overpaying; it is buying a sample that is indistinguishable from the real part until the day it stops being.

Talk to Us About Your Xeon 6 Requirement

HKCHL sources and tests Intel Xeon and AMD EPYC server processors, verifies part type and markings before dispatch, and matches processors to the platform and memory configuration they were specified for. Tell us the model and the system it is going into; we will tell you honestly whether the part is available as a bare processor and what we can stand behind, usually within 12 hours.

Need current availability on a Xeon 6776P or 6767P, or help confirming the right SKU for your platform? We source and fully test enterprise server processors from our Hong Kong warehouse. Contact us with your requirement and we will answer within 12 hours.