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Intel Xeon 6533P-B specifications and in-depth review

Intel Xeon 6533P-B

Manufacturer: Intel

The Intel Xeon 6533P-B is a high-performance Enterprise CPU designed to handle demanding workloads. It features a base CPU speed of 32 x 2.2 GHz and supports multithreading, making it a solid choice for enterprise-level applications. The processor has a Turbo Boost capability that can reach up to 3.9 GHz, enhancing performance during peak demands.

In terms of memory, the Xeon 6533P-B supports up to 1130GB of DDR5 RAM, with a maximum speed of 5600 MHz. It also supports ECC memory for improved reliability. This CPU includes 64 threads, 128 MB of L3 cache, and is compatible with PCIe 5.0 for high-speed connectivity. With a thermal design power of 205W, it is built to efficiently manage heat while delivering consistent performance.

Pros
  • Supports ECC memory, enhancing data integrity for critical workloads.
  • Utilizes DDR5 memory with a maximum speed of 5600 MHz, ensuring fast data transfer rates.
  • Equipped with 64 threads, making it highly efficient for parallel processing and multitasking.
  • Features multithreading, improving overall performance in multi-tasking environments.
  • Offers a large L3 cache of 128 MB, contributing to faster data access and processing.
Cons
  • Does not have integrated graphics, requiring a separate GPU for graphical tasks.
  • Fixed clock multiplier limits overclocking potential, lacking an unlocked multiplier.
  • Supports a maximum memory size of 1130GB, which may be excessive for typical users or small-scale tasks.
Who is this for?

The Intel Xeon 6533P-B is ideal for enterprise environments that require high parallel processing capabilities. With its support for ECC memory and 64 threads, it is particularly suited for tasks demanding high data integrity and multitasking, such as server workloads, data analysis, and scientific computations. The processor's large L3 cache (128 MB) and DDR5 memory support also make it an excellent choice for memory-intensive applications where quick data access is crucial.

Who is this NOT for?

This processor is not well-suited for general consumers or tasks that require integrated graphics, as it lacks integrated graphics. Additionally, its fixed clock multiplier means it is not an ideal choice for users seeking overclocking flexibility. Users with lower memory needs may find the processor's 1130GB memory capacity excessive and unnecessary for their workloads.

General info:

Thermal Design Power (TDP) 205W
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 6533P-B features a Thermal Design Power (TDP) of 205W, indicating its power consumption and heat output under typical load. Built using a 3 nm semiconductor size, this processor leverages advanced manufacturing technology for improved efficiency. It supports PCI Express 5.0, providing faster data transfer speeds, and is capable of handling 64-bit operations. Additionally, the CPU operates at a temperature of 85°C but lacks integrated graphics, focusing purely on raw processing power.

Performance:

CPU speed 32 x 2.2 GHz
CPU threads 64 threads
turbo clock speed 3.9GHz
L3 cache 128 MB
L1 cache 3584 KB
L2 cache 64 MB
L2 core 2 MB/core
clock multiplier 22
Has an unlocked multiplier ✕
L3 core 4 MB/core
Turbo Boost version 2

The Intel Xeon 6533P-B offers a total clock speed of 32 x 2.2 GHz, with 64 threads for multitasking and parallel processing. It includes 128 MB of L3 cache and 64 MB of L2 cache, with a core-specific L3 cache of 4 MB per core. The processor can reach up to 3.9 GHz with its Turbo Boost 2.0 feature, delivering enhanced performance under load. However, the clock multiplier is fixed at 22, and the processor does not support an unlocked multiplier for overclocking.

Memory:

Supports ECC memory ✓
DDR memory version 5
RAM speed (max) 5600 MHz
maximum memory amount 1130GB
memory channels 4

The Intel Xeon 6533P-B supports ECC memory, ensuring data integrity for critical workloads. It utilizes DDR5 memory, with a maximum RAM speed of 5600 MHz, offering fast data access. The processor can accommodate up to 1130GB of memory across 4 memory channels, allowing for efficient multitasking and large-scale data processing.

Features:

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

The Intel Xeon 6533P-B utilizes multithreading to handle multiple tasks simultaneously, improving performance for parallel workloads. It supports a variety of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, and SSE 4.1/4.2, enhancing computational efficiency and versatility. Additionally, the processor includes the NX bit, providing extra security by preventing the execution of malicious code in certain regions of memory.

Benchmarks:

Final Verdict

The Intel Xeon 6533P-B is a robust processor designed for enterprise environments that demand high performance and reliability. With its support for ECC memory and 64 threads, it excels in tasks that require intensive multitasking and data integrity, making it ideal for server and data center use. While it lacks integrated graphics and overclocking potential, its large L3 cache and powerful memory capabilities ensure smooth performance for complex applications. This processor is a strong choice for professional workloads but may not be necessary for users with less demanding needs.