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Intel Xeon 6738P specifications and in-depth review

Intel Xeon 6738P

Manufacturer: Intel

The Intel Xeon 6738P is a powerful Enterprise CPU designed to handle demanding workloads. It features 64 threads and a base clock speed of 32 x 2.9 GHz, with a turbo boost up to 4.2 GHz. With a high thermal design power (TDP) of 270W, it’s built for intensive tasks. The processor does not include integrated graphics, ensuring its focus is on raw processing power. ECC memory support ensures data integrity for critical enterprise applications.

This CPU supports up to 4000GB of DDR5 memory, with a maximum RAM speed of 6400 MHz and 8 memory channels, delivering significant bandwidth for multitasking. The Intel Xeon 6738P also utilizes advanced instruction sets like MMX, AES, and AVX2, and is equipped with a 144 MB L3 cache, providing fast access to frequently used data. Turbo Boost 2.0 enhances performance during demanding tasks, making it a solid choice for high-performance server environments.

Pros
  • Supports ECC memory, ensuring data integrity for mission-critical applications.
  • Has multithreading support, allowing for efficient handling of multiple simultaneous tasks.
  • Offers a large maximum memory capacity of 4000GB, suitable for high-performance computing needs.
  • Supports DDR5 memory with a high maximum RAM speed of 6400 MHz, enhancing data transfer speeds.
Cons
  • Does not have integrated graphics, limiting its ability for standalone graphical tasks.
  • Has a relatively high CPU temperature of 102°C, which may require additional cooling for stable operation.
  • The multiplier is not unlocked, preventing potential for overclocking to boost performance.
Who is this for?

The Intel Xeon 6738P is ideal for enterprise environments requiring high-performance computing. With its support for ECC memory and a massive 4000GB maximum memory capacity, it excels in critical workloads where data integrity and large memory pools are essential. Additionally, the multithreading capability and fast DDR5 memory make it well-suited for tasks like data analysis, server operations, and large-scale virtualization, where multitasking and high throughput are crucial.

Who is this NOT for?

The Intel Xeon 6738P may not be suitable for users or environments that require integrated graphics, as it lacks this feature. It also has a relatively high CPU temperature of 102°C, which could lead to thermal management issues in compact or poorly ventilated systems. Additionally, the processor's locked multiplier means overclocking is not an option, making it less ideal for users looking to push the system's performance beyond its base capabilities.

General info:

Thermal Design Power (TDP) 270W
release date February 2025
semiconductor size 3 nm
PCI Express (PCIe) version 5
Supports 64-bit ✓
CPU temperature 102 °C
Has integrated graphics ✕

The Intel Xeon 6738P features a Thermal Design Power (TDP) of 270W, reflecting its power demands for intensive workloads. It is built on a 3 nm semiconductor process, offering improved efficiency. The CPU supports PCI Express 5.0, providing fast data transfer speeds. It is a 64-bit processor and has a maximum operating temperature of 102°C. Notably, this model does not include integrated graphics, focusing entirely on CPU performance for demanding tasks.

Performance:

CPU speed 32 x 2.9 GHz
CPU threads 64 threads
turbo clock speed 4.2GHz
L3 cache 144 MB
L1 cache 3584 KB
L2 cache 64 MB
L2 core 2 MB/core
clock multiplier 29
Has an unlocked multiplier ✕
L3 core 4.5 MB/core
Turbo Boost version 2

The Intel Xeon 6738P offers a substantial 32 x 2.9 GHz CPU speed, supported by 64 threads, enabling it to handle demanding workloads with ease. It features a 144 MB L3 cache and additional L2 and L1 caches, improving data retrieval efficiency. The processor is capable of reaching a turbo clock speed of 4.2 GHz using Turbo Boost 2.0, although it lacks an unlocked multiplier, limiting overclocking potential.

Memory:

Supports ECC memory ✓
DDR memory version 5
RAM speed (max) 6400 MHz
maximum memory amount 4000GB
memory channels 8
bus transfer rate 24 GT/s

The Intel Xeon 6738P supports ECC memory for improved data integrity, making it suitable for critical workloads. It is compatible with DDR5 memory, offering a maximum RAM speed of 6400 MHz. With up to 4000GB of maximum memory and 8 memory channels, this processor is optimized for handling large datasets and high-performance tasks. The bus transfer rate of 24 GT/s further enhances its memory handling capabilities.

Features:

uses multithreading ✓
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓

The Intel Xeon 6738P features multithreading support, enabling efficient handling of multiple tasks simultaneously. It also supports a wide range of instruction sets, including MMX, AES, AVX, and SSE 4.2, which enhances its versatility for various applications. Additionally, the processor includes the NX bit, providing an added layer of security by preventing the execution of malicious code in certain areas of memory.

Benchmarks:

Final Verdict

The Intel Xeon 6738P is a robust choice for enterprise environments requiring high-performance computing, with its impressive support for ECC memory and vast memory capacity of up to 4000GB. Its multithreading capabilities and fast DDR5 memory ensure smooth handling of demanding tasks like virtualization and large-scale data processing. However, its lack of integrated graphics and high operating temperature may limit its appeal in more compact setups. Overall, this processor is an excellent option for users needing reliability and efficiency in high-demand, mission-critical applications.

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