Quick Verdict
A powerful 32-core Granite Rapids-SP CPU that excels in memory-bandwidth-sensitive and I/O-heavy server workloads, but its 300 W TDP and platform cost limit it to professional deployments where those features justify the investment.
Overview
Launch
2025
Status
LaunchedGeneration
Xeon 6 (Granite Rapids-SP)
Market
Enterprise Server / Dual-Socket Workstation
The Intel Xeon 6745P is a 32-core, 64-thread server and workstation processor based on the Granite Rapids-SP architecture, featuring 336 MB of L3 cache, eight-channel DDR5-6400 memory, and 88 PCIe 5.0 lanes in a 300 W TDP envelope.
With 32 Redwood Cove P-cores, 64 threads, 336 MB of shared L3 cache, eight-channel DDR5-6400, and 88 PCIe 5.0 lanes, the Xeon 6745P targets memory-intensive and I/O-intensive server workloads like large databases, virtualization, and AI inference. Its 300 W TDP and reliance on new LGA4710 platforms mean it is best suited for professional data center and workstation builds where its capabilities align with the total cost of ownership.
Specifications
Performance
Strong multi-threaded performance for enterprise workloads, with large cache and memory bandwidth benefiting database and analytics applications.
Excellent for hosting many VMs, with 32 cores, 64 threads, and 4 TB memory capacity supporting high VM density.
Not targeted at gaming; will deliver playable frame rates in most titles but is not optimized for low-latency or high-refresh-rate gaming compared to client CPUs.
300 W TDP is high per socket; efficiency is acceptable when the CPU is fully utilized, but idle and light-load efficiency are less favorable than lower-core-count options.
- •Server-focused CPU without integrated graphics
- •Gaming performance is not a design priority
- •Frame rates will be sufficient but not class-leading compared to desktop CPUs
- •AMX and AVX-512 provide strong CPU-based AI inference
- •Best suited for inference and mid-size models when GPUs are not used
- •Large memory capacity benefits model serving and data preprocessing
Architecture
Intel 3 (compute dies) + Intel process for IO dies
Process Node
Granite Rapids-SP
Codename
32C / 64T
Core Config
336 MB
L3 Cache
300 W
TDP
Architecture Overview
The Xeon 6745P uses Intel’s Granite Rapids-SP design, a chiplet-based architecture with compute dies containing Redwood Cove P-cores and DDR5 controllers on the Intel 3 process, plus separate IO dies for PCIe, UPI, and accelerators.
CPU Design
32 Redwood Cove P-cores with Hyper-Threading yield 64 threads; each core has 64 KB L1I, 48 KB L1D, and a 2 MB private L2 cache, totaling 40 MB L2 across the chip.
Memory Subsystem
An eight-channel DDR5-6400 memory controller per socket provides up to 4 TB of capacity and very high bandwidth for memory-bound workloads, with support for MRDIMM and persistent memory variants on compatible platforms.
PCIe & I/O
88 PCIe 5.0 lanes from the CPU plus additional chipset lanes allow multiple GPUs, NVMe storage, and SmartNICs; Intel’s R1S single-socket mode can trade UPI links for even more PCIe lanes in specific configurations.
Overclocking
The multiplier is locked; frequency is managed via Intel Turbo Boost 2.0 and Speed Select Technology profiles rather than manual overclocking.
- Significantly higher core counts and cache sizes
- DDR5-6400 eight-channel vs DDR4-3200 six-channel
- PCIe 5.0 vs PCIe 4.0
- Integrated AMX and more advanced accelerators (QAT, DSA, IAA, DLB)
Key Highlights
- 32 cores and 64 threads for high multi-threaded throughput
- 336 MB L3 cache reduces memory latency for large working sets
- Eight-channel DDR5-6400 with up to 4 TB capacity
- 88 PCIe 5.0 lanes for substantial I/O expansion
- AMX and AVX-512 improve AI and HPC performance
- Mature server ecosystem with RAS features (SGX, TDX, QAT, etc.)
- 300 W TDP requires robust cooling and power delivery
- New LGA4710 platform forces a full server/platform refresh
- High platform cost relative to older Xeon generations
- Locked multiplier limits tuning flexibility
- Efficiency at light loads is not a strength
History
The Xeon 6745P launched as part of Intel’s Xeon 6 Granite Rapids-SP generation in early 2025, representing a major shift from the long-standing Xeon Scalable platform. Intel moved to a chiplet design with compute dies on the Intel 3 process and separate IO dies, enabling higher core counts and more DDR5 channels than previous generations. The 6700P and 6500P series brought Granite Rapids P-cores to the mainstream dual-socket server market, with the 6745P positioned as a high-cache, high-frequency 32-core SKU for memory-intensive and I/O-heavy workloads.
This generation also de-emphasized the traditional Platinum/Gold/Silver/Bronze branding in favor of a clearer P-core versus E-core segmentation, and introduced platform features like the R1S single-socket mode with additional PCIe 5.0 lanes. For many enterprises, the 6745P and its siblings marked the first viable upgrade path from 4th or 5th Gen Xeon Scalable platforms, offering substantially more performance and bandwidth, but requiring a full platform refresh to LGA4710.
Improvements over Previous Generation
- Significantly higher core counts and cache sizes
- DDR5-6400 eight-channel vs DDR4-3200 six-channel
- PCIe 5.0 vs PCIe 4.0
- Integrated AMX and more advanced accelerators (QAT, DSA, IAA, DLB)
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Dual-socket servers or workstations running memory-intensive, I/O-heavy workloads such as large databases, virtualization, or AI inference where the 6745P’s cache and memory bandwidth justify the platform cost.
Avoid if…
- Building a gaming or light-use desktop
- Single-socket office server with modest workload
- Environments where power efficiency and low heat density are more important than raw throughput
Use Cases
Interesting Facts
The Xeon 6700P series is Intel’s first Granite Rapids-SP family for mainstream dual-socket servers, using a chiplet design with Intel 3 compute dies.
SPEC CPU2017 results for Xeon 6745P show 2 MB L2 per core and a 336 MB shared L3, confirming the large cache hierarchy.
Intel’s R1S mode on Xeon 6700P platforms can repurpose UPI links as extra PCIe 5.0 lanes, enabling single-socket configs with up to 136 PCIe 5.0 lanes.
The 6745P is part of the same Granite Rapids-SP generation as the up to 128-core Xeon 6900P series, but uses a smaller LGA4710 socket.
Despite the “6700” model number, the 6745P is a high-end SKU with 336 MB L3, more than many lower-core-count 6700P models.
Intel emphasizes AI acceleration on Xeon 6 with AMX and DL Boost, positioning even standard P-core SKUs like the 6745P as AI inference candidates.
The Xeon 6700P/6500P launch marked Intel’s shift from the old Platinum/Gold/Silver/Bronze branding to a more workload-centric P-core vs E-core segmentation.
Third-party retailers list the 6745P as using a “5 nm-class” process, but technical analysis attributes the compute dies to Intel’s advanced Intel 3 node.
The 6745P supports Intel Speed Select Technology Performance Profiles, allowing different base/TDP operating points for server vs compute modes.
HPE and other OEMs list the 6745P as a supported CPU for ProLiant and other servers, often paired with up to 4 TB of DDR5-6400 memory.
People Also Ask
What is the Intel Xeon 6745P?
It is a 32-core, 64-thread server and workstation processor from Intel’s Xeon 6 Granite Rapids-SP family, with 336 MB L3 cache, eight-channel DDR5-6400, and 88 PCIe 5.0 lanes.
What socket does the Xeon 6745P use?
It uses the Intel FCLGA4710 (LGA4710) socket, also referred to as Socket E2 in Intel’s Xeon 6 platform documentation.
How much L3 cache does the Xeon 6745P have?
It has 336 MB of shared L3 cache, as listed in Intel’s official specifications and confirmed by SPEC CPU2017 results.
Does the Xeon 6745P support DDR5?
Yes, it supports eight-channel DDR5 memory at up to 6400 MT/s with ECC.
Is the Xeon 6745P good for gaming?
It can run games, but it is not designed for gaming; desktop CPUs typically offer better gaming performance and value.
What process node is the Xeon 6745P built on?
Intel does not officially publish the node; technical analysis indicates the compute dies use Intel’s advanced Intel 3 process, with IO dies on a separate Intel process.
How many PCIe lanes does the Xeon 6745P have?
It provides up to 88 PCIe 5.0 lanes directly from the CPU, with additional lanes from the chipset.
Can the Xeon 6745P be overclocked?
No, it has a locked multiplier; frequency is controlled by Intel Turbo Boost and Speed Select Technology profiles.
What is the TDP of the Xeon 6745P?
The default and maximum TDP is 300 W, as specified by Intel.
Is the Xeon 6745P suitable for AI workloads?
It offers good CPU-based AI inference performance via AMX and AVX-512, and is suitable for mid-size models and inference when GPUs are not used.
Frequently Asked Questions
Does the Xeon 6745P have integrated graphics?
No, it does not have integrated graphics; a discrete GPU or BMC graphics is required for display output.
What memory speeds does the Xeon 6745P support?
It supports DDR5-6400 as the maximum official speed; actual speeds depend on DIMM type, rank count, and BIOS configuration.
Can I use the Xeon 6745P in a single-socket workstation?
Yes, it supports both 1-socket and 2-socket configurations; some platforms also support R1S mode for extra PCIe lanes in 1-socket setups.
What operating systems are supported on Xeon 6745P platforms?
Major enterprise Linux distributions and Windows Server are supported; check your vendor’s compatibility list for specific OS versions and drivers.
How does the Xeon 6745P compare to the Xeon 6730P?
The 6745P has higher base and turbo clocks and a much larger L3 cache (336 MB vs 288 MB), but both are 32-core Granite Rapids-SP parts with similar platform features.
Is the Xeon 6745P compatible with older LGA4189 motherboards?
No, it uses the new LGA4710 socket and is not backward compatible with LGA4189 platforms.
What accelerators are included with the Xeon 6745P?
It includes Intel QAT, DLB, DSA, and IAA accelerator engines, each with multiple devices, as listed in Intel’s specifications.
Does the Xeon 6745P support Intel SGX and TDX?
Yes, it supports Intel Software Guard Extensions (SGX) and Trust Domain Extensions (TDX) for confidential computing use cases.
What cooling is recommended for a 300 W Xeon 6745P?
High-performance air or liquid cooling solutions designed for 300 W TDP server CPUs are recommended; follow your server or workstation vendor’s thermal guidelines.
Is the Xeon 6745P still a good choice in 2026?
For memory- and I/O-intensive server workloads that can leverage its large cache and PCIe 5.0 lanes, it remains competitive; for new deployments focused on efficiency or cost, evaluate current EPYC and newer Xeon SKUs as well.