Quick Verdict
A very high‑core‑density, efficiency‑focused server CPU that excels at throughput‑bound, scale‑out workloads, but it is not a general‑purpose performance leader and is limited to single‑socket platforms.
Overview
Launch
2024
Status
LaunchedGeneration
Xeon 6 (6th Gen Xeon Scalable, Sierra Forest E‑cores)
Market
Data Center – Cloud‑Native / Scale‑Out / Networking
The Intel Xeon 6731E is a 96‑core, 96‑thread server processor based on the Sierra Forest E‑core architecture, targeting high‑density, throughput‑oriented workloads such as cloud‑native microservices, networking, and edge infrastructure. It integrates 96 MB of L3 cache, an 8‑channel DDR5‑6400 memory interface, and 88 PCIe 5.0 lanes in a 250 W LGA4710 package, and is restricted to single‑socket designs.
Intel’s Xeon 6731E belongs to the Xeon 6700E Sierra Forest family, offering 96 Crestmont E‑cores, 96 threads, 96 MB L3 cache, 8‑channel DDR5‑6400 and 88 PCIe 5.0 lanes in a 250 W LGA4710 package. It is intended for 1‑socket servers running web microservices, scale‑out databases, 5G core, and CDN workloads where core density and energy efficiency matter more than peak per‑core performance.
It does not support AVX‑512 or AMX, and lacks integrated graphics, focusing purely on efficient throughput.
Specifications
Performance
Strong at highly parallel, throughput‑oriented server workloads; not optimized for lightly threaded desktop productivity tasks.
Excellent for dense VM and container consolidation due to high core count, large memory, and many PCIe lanes, especially for scale‑out services.
Not intended for gaming; no integrated graphics and low per‑core clocks make it a poor choice compared to even mainstream desktop CPUs.
Designed for high performance per watt in its target segment; efficiency is a strength versus older Xeon generations, though 250 W TDP still demands robust cooling.
- •No integrated graphics and low base/boost clocks
- •Not targeted at client or gaming workloads
- •Server‑focused I/O and memory subsystem
- •Supports VNNI and AVX2 for AI inference workloads
- •No dedicated matrix or AMX acceleration
- •Suitable for scale‑out inference where throughput matters more than per‑core performance
Architecture
Intel 3 (compute tile); Intel 7 I/O tile
Process Node
Sierra Forest
Codename
96C / 96T
Core Config
96 MB
L3 Cache
250 W
TDP
Architecture Overview
The Xeon 6731E is part of Intel’s Sierra Forest generation, the first Xeon family to use only E‑cores (Crestmont) rather than P‑cores, optimized for performance per watt and core density in cloud‑native and networking workloads. It is built on a chiplet design with an Intel 3 compute tile and Intel 7 I/O tiles connected via EMIB.
CPU Design
96 Crestmont E‑cores organized in clusters; Crestmont is a 6‑wide decode, 6‑wide allocate, 8‑wide retire out‑of‑order core with 4 MB L2 per 4‑core cluster, 64 KB L1i and 32 KB L1d per core, focused on integer and vector throughput with enhanced AVX2 and VNNI support. Hyper‑threading is not used on Sierra Forest E‑cores.
Memory Subsystem
8‑channel DDR5 memory controller supporting DDR5‑6400 DIMMs with official speeds up to 5600 MT/s; supports up to 4 TB of memory and ECC, delivering high memory bandwidth for multi‑tenant and data‑intensive services.
PCIe & I/O
88 PCIe 5.0 lanes directly from the CPU, enabling high‑speed connectivity for NVMe, SmartNICs, DPUs, and accelerators, with Intel Volume Management Device (VMD) for NVMe management.
Overclocking
Multiplier is locked; no enthusiast overclocking. Turbo behavior is controlled by Intel’s power and thermal management within the 250 W TDP envelope.
- Up to 96 E‑cores versus up to 40–56 P‑cores in 5th Gen
- Significant performance per watt gains for scale‑out workloads
- DDR5 and PCIe 5.0 versus DDR4 and PCIe 4.0 on older platforms
- New accelerators (QAT, DLB, DSA, IAA) integrated per socket
Key Highlights
- 96 high‑density E‑cores for excellent throughput
- Intel 3 process and Crestmont cores improve performance per watt
- 8‑channel DDR5 with large memory capacity (up to 4 TB)
- 88 PCIe 5.0 lanes for I/O‑heavy accelerators and storage
- Integrated accelerators (QAT, DLB, DSA, IAA) for networking and analytics
- Strong security features (TDX, SGX, MK‑TME, CET, crypto acceleration)
- No AVX‑512 or AMX support
- Limited to single‑socket LGA4710 platforms
- 250 W TDP requires robust cooling and power delivery
- Lower per‑core performance versus P‑core Xeons or EPYC Genoa
- No integrated graphics
- Premium server pricing; not cost‑effective for general desktop use
History
Intel’s decision to split future Xeon processors into P‑core and E‑core tracks, announced in 2022, created two distinct product lines: one for high‑performance, latency‑sensitive workloads (P‑cores) and another for high‑density, efficiency‑first workloads (E‑cores). Sierra Forest, launched in 2024, is the first E‑core‑only Xeon generation, designed to compete with AMD’s Bergamo and ARM cloud CPUs for cloud‑native and 5G core deployments. The Xeon 6731E sits in the middle of the Xeon 6700E stack, offering 96 Crestmont E‑cores on the Intel 3‑based compute tile with Intel 7 I/O dies, enabling high core counts and strong performance per watt for scale‑out data centers.
Its launch marks Intel’s shift from hybrid client‑style big‑little designs to a clear server‑specific separation of P‑core and E‑core product lines.
Improvements over Previous Generation
- Up to 96 E‑cores versus up to 40–56 P‑cores in 5th Gen
- Significant performance per watt gains for scale‑out workloads
- DDR5 and PCIe 5.0 versus DDR4 and PCIe 4.0 on older platforms
- New accelerators (QAT, DLB, DSA, IAA) integrated per socket
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
New 1‑socket server builds for cloud‑native microservices, 5G core, CDN, or scale‑out web workloads where core density and performance per watt are critical.
Avoid if…
- You need multi‑socket systems
- Workloads are lightly threaded and latency‑sensitive
- You require AVX‑512 or AMX for AI/HPC
- Building a gaming or client desktop PC
Use Cases
Interesting Facts
Sierra Forest is Intel’s first Xeon generation to use only E‑cores, splitting the Xeon roadmap into P‑core and E‑core tracks.
The 6731E’s compute die is fabricated on Intel 3, while its I/O dies reuse Intel 7, connected via EMIB in a chiplet package.
Tom’s Hardware reports that Sierra Forest chips are the first Xeons to use the Intel 3 process node.
The 6731E is restricted to 1S designs; Supermicro’s documentation marks the 6700E series as 1S‑only.
Crestmont E‑cores in Sierra Forest are a 6‑wide decode, 8‑wide retire design with enhanced AVX2 and VNNI for AI and vector workloads.
Intel positions Xeon 6 E‑cores against AMD’s Bergamo (Zen 4c) and ARM cloud CPUs for cloud‑native and 5G core workloads.
The 96‑core 6731E sits between the 64‑core 6710E and 144‑core 6780E within the Xeon 6700E stack.
Sierra Forest launched at Computex 2024 on June 4, 2024 as the first member of the Xeon 6 family.
SPEC CPU2017 results for Dell PowerEdge R470 with Xeon 6731E confirm 96 cores, 1 thread per core, and 2.2/3.1 GHz base/turbo behavior.
Intel’s own Xeon 6 E‑core product brief lists the 6731E with 96 cores, 2.2 GHz base, 3.1 GHz turbo, 96 MB L3, 250 W TDP, and 1S‑only operation.
People Also Ask
What is the Intel Xeon 6731E used for?
It is designed for cloud‑native microservices, web and scale‑out services, 5G core, CDN, and edge workloads where high core density and performance per watt are more important than peak single‑thread performance.
How many cores does the Intel Xeon 6731E have?
96 Crestmont E‑cores with one thread per core, for 96 hardware threads.
Does the Intel Xeon 6731E support AVX‑512?
No. Sierra Forest E‑core Xeons support AVX2 and VNNI but not AVX‑512 or AMX.
Can the Intel Xeon 6731E be used in dual‑socket systems?
No. Intel and Supermicro documentation indicate the 6700E series, including the 6731E, is restricted to single‑socket (1S) designs.
What socket does the Intel Xeon 6731E use?
FCLGA4710, part of Intel’s Birch Stream‑SP LGA4710 platform for Xeon 6 SP processors.
How much memory does the Intel Xeon 6731E support?
Up to 4 TB of DDR5 memory across 8 channels, with official support for speeds up to 5600 MT/s and DDR5‑6400 DIMMs.
Is the Intel Xeon 6731E good for gaming?
No. It has no integrated graphics, low per‑core clocks, and is not optimized for gaming; consumer desktop CPUs are far better suited.
What process node is the Intel Xeon 6731E built on?
The compute chiplet uses Intel 3; the I/O chiplets use Intel 7, all connected via EMIB in a chiplet package.
How does the Intel Xeon 6731E compare to EPYC 9654?
The 6731E offers more cores (96 vs 96) at lower TDP (250 W vs 360 W) and targets efficiency‑first workloads, while EPYC 9654 delivers higher per‑core performance and AVX‑512 for general‑purpose server roles.
Does the Intel Xeon 6731E have integrated graphics?
No. Like all Xeon 6700E series CPUs, it requires a discrete GPU or ASIC for graphics or compute offload.
Frequently Asked Questions
Does the Intel Xeon 6731E support Hyper‑Threading?
No. Sierra Forest E‑cores are single‑threaded; the 6731E has 96 cores and 96 threads.
What memory speeds does the Intel Xeon 6731E officially support?
Intel lists DDR5‑6400 memory types with a maximum supported speed of 5600 MT/s; 6400 MT/s DIMMs may run at lower speeds depending on the platform.
Can I overclock the Intel Xeon 6731E?
No. The multiplier is locked; frequency is controlled by Intel’s turbo and power management algorithms within the 250 W TDP envelope.
What accelerators are integrated in the Intel Xeon 6731E?
Intel’s specification page lists Intel QuickAssist Technology (QAT), Dynamic Load Balancer (DLB), Data Streaming Accelerator (DSA), and In‑memory Analytics Accelerator (IAA), each with two default devices.
Is the Intel Xeon 6731E suitable for virtualization?
Yes. With 96 cores, 8‑channel DDR5, and 88 PCIe 5.0 lanes, it is well suited for dense VM and container consolidation, especially for scale‑out services.
What security features does the Intel Xeon 6731E support?
Intel lists Intel TDX, SGX with up to 512 GB EPC, MK‑TME (1024 keys), Total Memory Encryption, CET, Crypto Acceleration, and Boot Guard among others.
What is the TDP of the Intel Xeon 6731E?
250 W. There is no separate configurable TDP range listed; the specified TDP is 250 W.
Does the Intel Xeon 6731E support CXL?
Intel’s Xeon 6 family supports CXL 2.0 Type 3 devices on the platform; the 6731E’s I/O tile supports CXL memory and acceleration devices via the PCIe 5.0 links.
Is the Intel Xeon 6731E a good choice for AI workloads?
It is suitable for CPU‑based AI inference where throughput matters, thanks to VNNI and many cores, but it lacks AVX‑512 and AMX and is not ideal for training or latency‑sensitive inference.
When was the Intel Xeon 6731E launched?
Intel launched the Xeon 6 E‑core family (Sierra Forest) on June 4, 2024, with the 6731E SKU listed as launched in Q2 2024.