Intel Xeon 6546P-B specifications and in-depth review

Intel Xeon 6546P-B

Manufacturer: Intel

The Intel Xeon 6546P-B is a high-performance enterprise CPU designed to handle demanding workloads. With 64 threads and a base clock speed of 2.3 GHz, it offers robust processing power for intensive computing tasks. Its impressive 128 MB of L3 cache further enhances data handling efficiency, making it suitable for large-scale applications.

In terms of technical features, the Xeon 6546P-B supports ECC memory and boasts a maximum memory bandwidth of 204.8 GB/s, ensuring stability and fast data throughput. It also supports DDR5 memory with a maximum speed of 6400 MHz and comes with four memory channels. The CPU has a thermal design power (TDP) of 195W and a semiconductor size of 3 nm, optimizing energy efficiency while handling substantial workloads.

Pros
  • Supports multithreading, improving performance for parallel processing tasks.
  • Includes ECC memory support, ensuring data integrity and system stability during heavy workloads.
  • Offers a maximum memory bandwidth of 204.8 GB/s, enabling fast data transfer for memory-intensive applications.
  • Supports PCIe 5.0, providing faster data transfer rates for compatible peripherals and expansion cards.
Cons
  • Does not include integrated graphics, requiring a dedicated GPU for graphical tasks.
  • Has a fixed clock multiplier, limiting overclocking potential for users seeking more customization.
  • CPU temperature reaches 85°C under typical conditions, which may require additional cooling solutions for optimal performance.
Who is this for?

This product is ideal for enterprises and high-performance computing environments where multithreading and large memory capacity are essential for handling intensive workloads. With support for ECC memory and high memory bandwidth, it is well-suited for applications that require data integrity and fast processing, such as data centers, scientific simulations, and heavy multitasking scenarios.

Who is this NOT for?

This CPU is not suitable for users who need integrated graphics for tasks such as casual gaming or basic video editing, as it lacks GPU support. Additionally, its fixed clock multiplier may limit users looking for overclocking flexibility to maximize performance for specific workloads or to experiment with higher clock speeds.

General info:

Thermal Design Power (TDP) 195W
release date February 2025
semiconductor size 3 nm
PCI Express (PCIe) version 5
Supports 64-bit
CPU temperature 85 °C
Has integrated graphics

The Intel Xeon 6546P-B features a 195W thermal design power (TDP), ensuring efficient power consumption while maintaining high performance. With a 3 nm semiconductor size, it benefits from advanced manufacturing technology, offering improved energy efficiency and thermal management. The CPU supports PCIe version 5 for high-speed data transfer and is capable of 64-bit processing, making it suitable for modern applications. However, it does not include integrated graphics, and its typical operating temperature reaches 85°C.

Performance:

CPU speed 32 x 2.3 GHz
CPU threads 64 threads
turbo clock speed 3.5GHz
L3 cache 128 MB
L1 cache 3584 KB
L2 cache 64 MB
L2 core 2 MB/core
clock multiplier 23
Has an unlocked multiplier
L3 core 4 MB/core
Turbo Boost version 2

The Intel Xeon 6546P-B delivers solid performance with a base clock speed of 32 x 2.3 GHz, capable of reaching 3.5 GHz turbo for demanding tasks. It features 64 threads to handle parallel workloads efficiently, and boasts large cache sizes, including 128 MB of L3 cache and 64 MB of L2 cache. The L2 cache is organized into 2 MB per core, while the L3 cache is divided into 4 MB per core. This CPU does not support an unlocked multiplier, with a fixed clock multiplier of 23, and supports Turbo Boost version 2 for dynamic performance scaling.

Memory:

Supports ECC memory
maximum memory bandwidth 204.8 GB/s
DDR memory version 5
RAM speed (max) 6400 MHz
maximum memory amount 1130GB
memory channels 4

The Intel Xeon 6546P-B supports ECC memory for error correction, ensuring system stability during heavy workloads. It offers a maximum memory bandwidth of 204.8 GB/s and supports DDR5 memory with speeds up to 6400 MHz. With four memory channels, this processor can handle up to 1130 GB of RAM, providing ample capacity for memory-intensive tasks.

Features:

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

The Intel Xeon 6546P-B supports multithreading, allowing it to handle multiple tasks simultaneously for improved efficiency. It also includes a range of instruction sets such as MMX, AES, AVX, and SSE 4.2, enabling optimized performance for various workloads. Additionally, the processor features an NX bit, enhancing security by preventing the execution of malicious code in certain areas of memory.

Benchmarks:

Final Verdict

The Intel Xeon 6546P-B is a robust enterprise CPU designed for demanding workloads, offering strong performance with 64 threads and an impressive 128 MB of L3 cache. Its support for ECC memory and high memory bandwidth makes it an excellent choice for mission-critical applications that require both stability and speed. While it lacks integrated graphics and overclocking flexibility, its features are well-suited for data centers, scientific simulations, and similar high-performance environments. Overall, this processor is a reliable choice for users who need solid, scalable performance in professional settings.

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