Quick Verdict
A strong data center processor with high core count, large L3 cache, and accelerators for AI and analytics, provided you can accommodate its 270 W TDP and platform requirements.
Overview
Launch
2025
Status
LaunchedGeneration
5th Generation Intel Xeon Scalable
Market
Server
The Intel Xeon 6738P is a 32-core server processor designed for modern data center workloads, supporting DDR5-6400 memory and PCIe 5.0 with a 270 W TDP.
The Intel Xeon 6738P delivers 32 cores and 64 threads with 144 MB of L3 cache, DDR5-6400 support across eight channels, and 88 PCIe 5.0 lanes, targeting multi-socket scale-up and scale-out environments. Built on Intel 3, it integrates accelerators including Intel AMX, DSA, IAA, DLB and QAT to accelerate AI, security, storage and networking tasks.
Its 270 W TDP demands robust cooling, but for enterprise and cloud workloads the feature set and throughput are compelling.
Specifications
Performance
32 cores and eight memory channels provide strong consolidation potential for VM-heavy environments.
Performance per watt improved versus prior generations, but 270 W TDP still demands substantial power and cooling.
- •Xeon 6738P is a server/workstation processor without integrated graphics.
- •Single-core performance is respectable but gaming workloads are not the target use case.
- •Consumer platforms typically offer better price/performance for gaming.
- •Intel AMX accelerates matrix operations for inference and some training workloads.
- •Integrated DSA, IAA, DLB, and QAT offload data movement and crypto tasks common in AI pipelines.
Architecture
Intel 3
Process Node
Emerald Rapids
Codename
32C / 64T
Core Config
144 MB
L3 Cache
270 W
TDP
Architecture Overview
Emerald Rapids is Intel's 5th Generation Xeon Scalable architecture, delivering more cores, larger caches, and higher memory speeds while staying within similar power envelopes to the previous generation. It builds on the chiplet-based design introduced with Sapphire Rapids, optimizing die-to-die interconnects and ring meshes to reduce latency and improve throughput for multi-threaded server workloads. Key improvements include increased L3 capacity and faster DDR5 support up to 6400 MT/s, which directly benefits memory-bound applications such as databases and analytics.
CPU Design
The Xeon 6738P features 32 physical cores with Hyper-Threading (64 threads) and a 144 MB shared L3 cache. The architecture supports Intel Turbo Boost Max 3.0 and Speed Select Technology to optimize performance per watt and tailor frequency for specific workloads. A high number of UPI links enables scalable multi-socket configurations.
Memory Subsystem
Eight memory channels of DDR5 at up to 6400 MT/s provide substantial memory bandwidth per socket, reducing bottlenecks for bandwidth-intensive workloads.
PCIe & I/O
The processor offers up to 88 PCIe 5.0 lanes, enabling high-bandwidth connectivity for NVMe SSDs, accelerators, and network cards.
Overclocking
Xeon 6738P does not support unlocked multiplier overclocking; tuning is done through Intel Speed Select and firmware controls.
- Higher core counts within the same power envelope
- Increased L3 cache capacity
- Faster DDR5-6400 memory support
- Improved AI and data acceleration capabilities
Key Highlights
- 32 cores and 64 threads for high parallelism
- Large 144 MB L3 cache reduces memory latency
- Eight DDR5-6400 memory channels
- 88 PCIe 5.0 lanes for extensive I/O
- Integrated accelerators: AMX, DSA, IAA, DLB, QAT
- Multi-socket scalability up to 8 sockets
- High 270 W TDP requires robust cooling
- No integrated graphics
- Not intended for consumer desktop or gaming
- Xeon platforms incur higher total cost of ownership
- Limited upgrade path beyond the Xeon 6 series
History
Emerald Rapids represents Intel's continued refinement of its chiplet-based Xeon Scalable line, building on the foundation laid by Sapphire Rapids. Intel focused on increasing core counts, enlarging caches, and raising memory speeds while keeping power envelopes in check, helping data centers upgrade existing platforms with meaningful performance gains. The introduction of robust on-die accelerators for AI, analytics, and security reflects the shifting priorities of enterprise workloads toward data-intensive and AI-driven tasks.
As part of the 5th Gen Xeon family, the 6738P underscores Intel's emphasis on scalable multi-socket systems and I/O headroom to meet the demands of modern cloud and high-performance computing environments.
Improvements over Previous Generation
- Higher core counts within the same power envelope
- Increased L3 cache capacity
- Faster DDR5-6400 memory support
- Improved AI and data acceleration capabilities
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Enterprise servers, multi-socket workstations, and cloud infrastructure requiring high memory bandwidth, I/O expansion, and built-in accelerators.
Avoid if…
- You need a consumer gaming PC
- Your workloads are single-threaded
- Power budget or cooling capacity is constrained
Use Cases
Interesting Facts
Emerald Rapids uses the Intel 3 process node, marking an evolution over Intel 7 used in the prior generation.
Xeon 6738P supports Intel TDX (Trust Domain Extensions) for confidential computing.
With 4S/8S scalability, it targets scale-up database and in-memory analytics appliances.
The processor includes dedicated accelerators for compression, encryption, and data movement.
Intel AMX in Emerald Rapids is designed to speed up AI inference beyond prior AVX-512 implementations.
People Also Ask
Is the Xeon 6738P a 5th Gen Xeon Scalable processor?
Yes, the Xeon 6738P belongs to the 5th Generation Intel Xeon Scalable family, codenamed Emerald Rapids.
What is the TDP of the Intel Xeon 6738P?
The Intel Xeon 6738P has a 270 W TDP.
How many PCIe lanes does the Xeon 6738P provide?
It provides up to 88 PCIe 5.0 lanes.
Does the Xeon 6738P support DDR5 memory?
Yes, it supports DDR5 up to 6400 MT/s across eight memory channels.
Does the Xeon 6738P have integrated graphics?
No, it does not have integrated graphics.
What socket does the Xeon 6738P use?
It uses the FCLGA4710 socket.
Is the Xeon 6738P multiplier unlocked?
No, Xeon 6738P does not have an unlocked multiplier; tuning is via firmware and Intel SST.
What accelerators are integrated into Xeon 6738P?
It includes Intel AMX, DSA, IAA, DLB, and QAT accelerators.
Can I use Xeon 6738P in a consumer PC?
It requires a server platform with the FCLGA4710 socket and is not suited for typical consumer PCs.
What is the L3 cache size of the Xeon 6738P?
It has 144 MB of L3 cache.
Frequently Asked Questions
What is the core and thread count of Xeon 6738P?
The Xeon 6738P has 32 cores and 64 threads.
What process node is Xeon 6738P built on?
It is manufactured on Intel's Intel 3 process.
Does Xeon 6738P support ECC memory?
Yes, it supports ECC DDR5 memory.
What is the maximum memory capacity per socket?
Up to 4 TB of DDR5 memory per socket, depending on memory type.
What are the base and turbo clock speeds?
The base frequency is 2.9 GHz with a maximum turbo of 4.2 GHz and all-core turbo of 4.1 GHz.
Is Xeon 6738P suitable for gaming?
It is not designed for gaming; lack of integrated graphics and high cost make it unsuitable for consumer gaming rigs.
What security features does Xeon 6738P include?
It includes Intel TDX, SGX, Total Memory Encryption, Boot Guard, and Control-Flow Enforcement Technology.
What is the intended market for Xeon 6738P?
It targets data center, cloud, and workstation markets.
What is the launch quarter for Xeon 6738P?
Q1'25.
Does Xeon 6738P support multi-socket configurations?
Yes, it supports 4S and 8S multi-socket scalability.