Quick Verdict
A powerful single-socket Xeon optimized for high core count and accelerator-rich workloads, best suited for users who want maximum per-socket performance without multi-socket complexity.
Overview
Launch
2025
Status
LaunchedGeneration
Xeon 6 (6th Gen Xeon Scalable)
Market
Single-Socket Server / Workstation
The Intel Xeon 6768P-B is a 64-core, 128-thread single-socket server processor based on the Granite Rapids-SP (Redwood Cove P-core) architecture, featuring 256 MB of L3 cache, 8-channel DDR5-6400 memory, and 48 PCIe lanes (Gen4/Gen5) with integrated accelerators for AI, networking, and security workloads.
Intel’s Xeon 6768P-B is a single-socket, 64-core / 128-thread Granite Rapids-SP CPU built on Redwood Cove P-cores. It offers 256 MB of L3 cache, 8-channel DDR5-6400, and 48 PCIe Gen4/Gen5 lanes, plus integrated QAT, DLB, DSA, AMX, and vRAN Boost accelerators. Designed for 1S-only servers and workstations, it targets virtualization, databases, analytics, AI inference, and software-defined storage, where its high core count and I/O bandwidth are more useful than multi-socket scalability.
Specifications
Performance
No verified PassMark or SPEC CPU2017 results available for this specific SKU; performance should be similar to other 64-core Granite Rapids-SP parts.
No published VMmark or virtualization benchmarks for this exact SKU; design and core count suggest strong VM density.
Not intended for gaming; no relevant benchmarks available.
No verified performance-per-watt data; 325 W TDP is high but typical for 64 performance cores in this generation.
- •Server-focused SKU with no integrated graphics
- •Gaming performance is irrelevant for this use case
- •AMX (Advanced Matrix Extensions) accelerate matrix operations for inference and training
- •No dedicated GPU, but strong CPU AI and QAT/DLB/DSA acceleration for data movement and compression
Architecture
Intel 3 (compute dies) + Intel 7 (I/O dies)
Process Node
Granite Rapids-SP (Redwood Cove P-cores)
Codename
64C / 128T
Core Config
256 MB
L3 Cache
325 W
TDP
Architecture Overview
Xeon 6768P-B is part of Intel’s Granite Rapids-SP family, which uses a chiplet design with Redwood Cove P-cores on Intel 3 compute dies and I/O functionality on Intel 7 dies, all packaged in a single-socket FCBGA5026 (LGA 4710) package.
CPU Design
64 Redwood Cove P-cores with 2 MB L2 cache each and 128 MB total L2, plus 256 MB of shared L3 cache, delivering high throughput for vector and matrix workloads via AVX-512 and AMX.
Memory Subsystem
8-channel DDR5-6400 memory controller provides up to 2.25 TB of capacity and high bandwidth for memory-bound databases and analytics.
PCIe & I/O
48 PCIe lanes split between Gen5 (32 lanes) and Gen4 (16 lanes), ideal for direct-attach GPUs, SmartNICs, and NVMe storage in a 1S server or workstation.
- Redwood Cove P-cores with higher IPC and AMX vs Sapphire Rapids/Emerald Rapids cores
- Chiplet design with Intel 3 compute dies and Intel 7 I/O dies for better scalability
- Higher memory bandwidth (8-channel DDR5-6400) and larger L3 cache per core
- Single-socket SKU optimized for 1S servers and workstations, with competitive TCO
Key Highlights
- 64 P-cores / 128 threads for high-throughput workloads
- 1S-only design simplifies software licensing and NUMA tuning
- 8-channel DDR5-6400 with up to 2.25 TB capacity
- 48 PCIe Gen4/Gen5 lanes for GPUs, NICs, and NVMe
- Integrated QAT, DLB, DSA, AMX, and vRAN Boost accelerators
- Strong virtualization and security feature set (TDX, SGX, MK-TME, VMD)
- High 325 W TDP requires robust cooling and power delivery
- Single-socket only; no multi-socket upgrade path
- No integrated graphics; not suitable for headless client scenarios without a GPU
- Launch pricing is high relative to mainstream server CPUs
- Benchmark data for this exact SKU is still limited
History
Intel’s Xeon 6 family, codenamed Granite Rapids, launched in September 2024 as the 6th-generation Xeon Scalable platform, introducing up to 128 P-cores and a chiplet architecture with Intel 3 compute dies and Intel 7 I/O dies. In early 2025, Intel expanded the lineup with the Xeon 6700P and 6500P series, targeting mainstream and single-socket data center use cases with up to 86 cores and 8-channel DDR5 memory.</br>The -B SKUs, including the 6768P-B, emerged later in 2025 as 1S-only variants designed for single-socket servers and workstations.
Compared to the multi-socket 6768P, the 6768P-B reduces L3 cache to 256 MB and PCIe lanes to 48, but retains the same 64-core Redwood Cove design and 325 W TDP, optimizing cost and simplicity for deployments that don’t need multi-socket scaling. These chips reflect Intel’s response to AMD’s strong single-socket EPYC offerings and the growing demand for high-core-count, accelerator-rich 1S platforms in cloud, edge, and HPC environments.
Improvements over Previous Generation
- Redwood Cove P-cores with higher IPC and AMX vs Sapphire Rapids/Emerald Rapids cores
- Chiplet design with Intel 3 compute dies and Intel 7 I/O dies for better scalability
- Higher memory bandwidth (8-channel DDR5-6400) and larger L3 cache per core
- Single-socket SKU optimized for 1S servers and workstations, with competitive TCO
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Single-socket servers or workstations that need high core count, strong memory bandwidth, and integrated accelerators without multi-socket licensing complexity.
Avoid if…
- You need dual-socket or 4S/8S scalability
- Your workload is lightly threaded and prefers very high clock speeds over core count
- You want a client desktop or gaming CPU
Use Cases
Interesting Facts
The -B suffix denotes 1S-only Granite Rapids-SP SKUs, optimized for single-socket servers and workstations.
Granite Rapids-SP combines Intel 3 compute dies with Intel 7 I/O dies in a chiplet package.
Redwood Cove P-cores in Xeon 6 feature AVX-512 and AMX, unlike many client-core designs that omit AVX-512.
The 6768P-B has half the L3 cache (256 MB) of the multi-socket 6768P (336 MB) to align with its 1S focus.
Integrated vRAN Boost makes these CPUs attractive for 5G and virtualized radio access networks.
This SKU uses the FCBGA5026 package, which maps to the LGA 4710 socket on server and workstation motherboards.
SPEC CPU2017 results exist for the multi-socket 6768P but not for the 6768P-B variant.
The 6768P-B is one of the first Xeon 6 1S-only SKUs aimed squarely at AMD’s single-socket EPYC 9004 competition.
AMX support on these server cores allows significant speedups for BF16/INT8 matrix operations in AI frameworks.
Despite the high core count, the base clock is 2.2 GHz, reflecting a design prioritizing throughput and efficiency over peak frequency.
People Also Ask
Is Intel Xeon 6768P-B good for virtualization?
Yes, its 64 cores / 128 threads, 8-channel DDR5, and 48 PCIe lanes make it strong for hosting many VMs, especially on a single-socket server.
What is the difference between Xeon 6768P and 6768P-B?
6768P supports 4S/8S configurations with 336 MB L3 and 88 PCIe 5 lanes, while 6768P-B is 1S-only with 256 MB L3 and 48 PCIe Gen4/Gen5 lanes.
Does Xeon 6768P-B support DDR5?
Yes, it supports 8-channel DDR5-6400 memory with ECC, up to 2.25 TB capacity.
How many PCIe lanes does Xeon 6768P-B have?
48 lanes, configured as 32 Gen5 + 16 Gen4.
Can Xeon 6768P-B be used in dual-socket systems?
No, it is explicitly listed as 1S Only and does not support multi-socket configurations.
What socket does Xeon 6768P-B use?
It uses the FCBGA5026 package, which corresponds to the LGA 4710 socket on compatible server and workstation motherboards.
Does Xeon 6768P-B have integrated graphics?
No, it has no integrated GPU; a discrete GPU or BMC with graphics is required for display output.
Is Xeon 6768P-B unlocked for overclocking?
No, the multiplier is locked; it is designed for stable server operation rather than enthusiast overclocking.
What process node is Xeon 6768P-B built on?
Granite Rapids-SP uses Intel 3 for compute dies and Intel 7 for I/O dies; Intel ARK does not specify a single node for this SKU.
Is Xeon 6768P-B suitable for AI workloads?
It offers strong CPU-based AI performance via AMX and AVX-512, but for large-scale training you would typically pair it with dedicated accelerators or GPUs.
Frequently Asked Questions
What does the -B suffix mean on Intel Xeon 6768P-B?
The -B suffix indicates a 1S-only (single-socket) Granite Rapids-SP SKU, optimized for single-socket servers and workstations rather than multi-socket configurations.
How much L3 cache does Xeon 6768P-B have?
It has 256 MB of Intel Smart Cache (L3), compared to 336 MB on the multi-socket 6768P.
What memory speeds does Xeon 6768P-B support?
It supports DDR5-6400 with eight channels and ECC, up to 2.25 TB maximum memory capacity.
Can I use Xeon 6768P-B in a desktop motherboard?
No, it requires a server or workstation motherboard with the LGA 4710 / FCBGA5026 socket and appropriate VRM and cooling design.
What accelerators are included in Xeon 6768P-B?
It includes Intel QuickAssist Technology (QAT), Dynamic Load Balancer (DLB), Data Streaming Accelerator (DSA), Advanced Matrix Extensions (AMX), and vRAN Boost.
Does Xeon 6768P-B support Intel TDX and SGX?
Yes, it supports Intel Trust Domain Extensions (TDX) and Software Guard Extensions (SGX) with Intel SPS for confidential computing and secure enclaves.
What is the TDP of Xeon 6768P-B?
The thermal design power is 325 W, requiring robust cooling and power supply in the server or workstation chassis.
Is Xeon 6768P-B good for databases?
Yes, its high core count, large memory capacity, and 8-channel DDR5 bandwidth make it well suited for in-memory and transactional databases.
Does Xeon 6768P-B support CXL?
Intel ARK does not list CXL for this SKU; CXL support is more common on higher-end Xeon 6900P/6900E platforms.
Is Xeon 6768P-B better than EPYC 9554 for single-socket servers?
It depends on workload; Xeon 6768P-B offers strong integrated accelerators and AVX-512/AMX, while EPYC 9554 provides more memory channels and PCIe lanes with Zen 4 performance.