| Product SKU | 638 |
|---|---|
| Product Collection | Intel® Xeon® 6 processors |
| Code Name | Products formerly Granite Rapids |
| Vertical Segment | Workstation |
| Lithography | Intel 3 |
| Total Cores | 16 |
| # of Performance-cores | 16 |
| Total Threads | 32 |
| Max Turbo Frequency | 4.8 GHz |
| Intel Turbo Boost Max Technology 3.0 Frequency | 4.8 GHz |
| Intel Turbo Boost Technology 2.0 Frequency | 4.6 GHz |
| Processor Base Frequency | 3.2 GHz |
| Cache | 72 MB |
| Bus Speed | 0.000 GT/s |
| Processor Base Power | 180 W |
| Maximum Turbo Power 1s) power dissipation of the processor as limited by current and/or temperature controls. Instantaneous power may exceed Maximum Turbo Power for short durations ( | 216 W |
| TDP | 180 W |
| Marketing Status | Launched |
| Launch Date | Q1'26 |
| Embedded Options Available | No |
| Max Memory Size (dependent on memory type) | 2 TB |
| Memory Types | DDR5(6400MT/s) |
| Maximum Memory Speed | 6400 MT/s |
| Max # of Memory Channels | 4 |
| ECC Memory Supported | Yes |
| Direct Media Interface (DMI) Revision | 4 |
| Scalability | 1S |
| PCI Express Revision | 5.0 |
| Max # of PCI Express Lanes | 80 |
| Sockets Supported | FCLGA4710 |
| Package Carrier | E2B |
| Max CPU Configuration | 1 |
| DTS Max | 100 °C |
| T CASE | 76 °C CASE "> |
| Package Size | 77.5mm x 56.5mm |
| Intel Data Streaming Accelerator (DSA) | 1 default devices |
| Intel Advanced Matrix Extensions (AMX) | Yes |
| Intel Deep Learning Boost (Intel DL Boost) on CPU | Yes |
| Intel Speed Shift Technology | Yes |
| Intel Turbo Boost Max Technology 3.0 | Yes |
| Intel Turbo Boost Technology | 2.0 |
| Intel Hyper-Threading Technology | Yes |
| Intel Transactional Synchronization Extensions | Yes |
| Intel 64 | Yes |
| Instruction Set | 64-bit |
| Instruction Set Extensions | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| # of AVX-512 FMA Units | 2. |
| Intel Volume Management Device (VMD) | Yes |
| Intel vPro Eligibility | Intel vPro® Enterprise |
| Intel Trust Domain Extensions (Intel TDX) | No |
| Intel Threat Detection Technology (TDT) | No |
| Intel Active Management Technology (AMT) | Yes |
| Intel Remote Platform Erase (RPE) | Yes |
| Intel One-Click Recovery | Yes |
| Intel QuickAssist Software Acceleration | No |
| Intel Platform Firmware Resilience Support | No |
| Intel Control-Flow Enforcement Technology | Yes |
| Intel Total Memory Encryption - Multi Key | Yes |
| Intel Total Memory Encryption | Yes |
| Intel AES New Instructions | Yes |
| Intel Software Guard Extensions (Intel SGX) | No |
| Intel OS Guard | Yes |
| Intel Trusted Execution Technology | Yes |
| Execute Disable Bit | Yes |
| Intel Boot Guard | Yes |
| Mode-based Execute Control (MBEC) | Yes |
| Intel Virtualization Technology with Redirect Protection (VT-rp) | Yes |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
CPU, Intel Xeon
Intel Xeon 638 Processor
The Intel Xeon 638 Processor is a 16-core, 32-thread server CPU from the Intel Xeon 6 processor family (Granite Rapids), with 72 MB cache, 4-channel memory, PCIe 5.0 and a 180 W TDP.
Overview
The Intel Xeon 638 processor is a Intel® Xeon® 6 processors server CPU (Products formerly Granite Rapids) with 16 cores / 32 threads, a 3.2 GHz base frequency and up to 4.8 GHz max turbo, 72 MB of cache and a 180 W TDP. It uses the FCLGA4710 socket, 4 memory channels and PCI Express 5.0.
At a glance
- Cores / threads: 16 cores / 32 threads
- Frequency: 3.2 GHz base / 4.8 GHz max turbo
- Cache: 72 MB
- TDP: 180 W
- Memory: DDR5(6400MT/s); 4 channels; up to 2 TB; ECC Yes
- PCI Express: 5.0, 80 lanes
- Socket: FCLGA4710; scalability 1S
- Launch: Q1’26
- Notable features: Intel AMX, Intel SGX
When to choose the 638
In Intel’s line-up this processor sits in a server processor. With 16 cores on the FCLGA4710 platform it suits general-purpose server workloads, and its 180 W TDP sets the cooling and power budget for the node.
Platform & compatibility
The Intel Xeon 638 uses the FCLGA4710 socket on 1S platforms, supports DDR5(6400MT/s), with up to 4 memory channels, and up to 2 TB of memory, provides PCI Express 5.0 (80 lanes). Confirm the exact OEM platform, BIOS level and memory population for your workload before ordering.
Deployment notes
The 638 installs in a FCLGA4710 platform with up to 4 memory channels and up to 2 TB of memory. Intel AMX accelerates INT8 and BF16 AI inference directly on the CPU. Intel SGX provides application enclaves. It is launched as part of Intel® Xeon® 6 processors and is intended for general-purpose server workloads.
FAQ
How many cores does it have? 16 cores and 32 threads.
What socket does it use? FCLGA4710, in 1S systems.
What memory does it support? DDR5(6400MT/s).
Does it support ECC memory? Yes.
Related
Configuration, availability and lead time depend on the required quantity, server pairing and delivery destination. Send your requirement to receive a quotation.
