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Intel Xeon 6505P specifications and in-depth review

Intel Xeon 6505P

Manufacturer: Intel

The Intel Xeon 6505P is a high-performance enterprise CPU designed for demanding workloads. With a base clock speed of 12 x 2.2 GHz and a turbo boost up to 4.1 GHz, it offers reliable processing power. The processor features 24 threads and is built on a 3 nm semiconductor architecture, providing efficient performance for enterprise environments.

Key technical specifications include support for ECC memory and DDR5 memory with a maximum speed of 6400 MHz. It also features 48 MB of L3 cache, 8 memory channels, and supports PCIe 5.0, ensuring smooth data transfer and scalability for large-scale operations.

Pros
  • Supports ECC memory, ensuring data integrity and error correction for critical workloads.
  • Compatible with high-speed DDR5 memory, with a maximum RAM speed of 6400 MHz.
  • Equipped with 8 memory channels, offering high bandwidth for memory-intensive tasks.
  • Uses multithreading, allowing the processor to handle multiple tasks simultaneously for better efficiency.
  • Supports advanced instruction sets like AVX, AES, and FMA3, improving performance in specialized applications.
Cons
  • Does not have integrated graphics, requiring a separate GPU for graphical tasks.
  • Has a high thermal design power (TDP) of 150W, which may require efficient cooling solutions.
  • The clock multiplier is locked, limiting overclocking potential for users looking to push the processor further.
Who is this for?

This processor is ideal for enterprise environments that require robust, multi-threaded performance for data-intensive applications. With 24 threads and support for ECC memory, it is well-suited for mission-critical workloads where data integrity and efficient parallel processing are essential. The Xeon 6505P's high memory bandwidth, with 8 memory channels and support for DDR5 memory, makes it a strong candidate for servers or workstations handling large datasets or complex computational tasks.

Who is this NOT for?

This processor may not be ideal for users who need integrated graphics or a processor with flexible overclocking potential. The absence of integrated graphics means that a dedicated GPU is required, which could be a limitation for systems that require onboard graphics. Additionally, its locked clock multiplier means that users seeking customization through overclocking would find this CPU less adaptable to their needs.

General info:

Thermal Design Power (TDP) 150W
release date February 2025
semiconductor size 3 nm
PCI Express (PCIe) version 5
Supports 64-bit ✓
CPU temperature 97 °C
Has integrated graphics ✕

The Intel Xeon 6505P features a thermal design power (TDP) of 150W, indicating its power consumption under maximum load. It is built using a 3 nm semiconductor size for improved efficiency and performance. The processor supports PCIe 5.0, offering enhanced data throughput, and is fully compatible with 64-bit computing. However, it does not include integrated graphics, and its maximum operating temperature is 97°C.

Performance:

CPU speed 12 x 2.2 GHz
CPU threads 24 threads
turbo clock speed 4.1GHz
L3 cache 48 MB
L1 cache 1344 KB
L2 cache 24 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 6505P delivers strong performance with a base clock speed of 12 x 2.2 GHz, capable of boosting up to 4.1 GHz using Turbo Boost 2.0. It features 24 threads, making it well-suited for multi-tasking and parallel processing. Additionally, the processor is equipped with a substantial 48 MB of L3 cache, complemented by 24 MB of L2 cache, providing fast data access and enhancing overall computational efficiency.

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 6505P supports ECC memory, ensuring error correction for high-reliability computing environments. It is compatible with DDR5 memory, offering a maximum RAM speed of 6400 MHz, and can handle up to 4000GB of total memory. The processor also features 8 memory channels and a bus transfer rate of 24 GT/s, providing excellent data throughput and memory bandwidth for demanding workloads.

Features:

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

The Intel Xeon 6505P utilizes multithreading to enhance its processing capabilities by handling multiple tasks simultaneously. It supports a wide range of instruction sets, including MMX, FMA3, AES, AVX, and SSE 4.2, enabling efficient execution of diverse computational tasks. Additionally, the processor features the NX bit, providing enhanced security by preventing the execution of malicious code in certain memory regions.

Benchmarks:

Final Verdict

The Intel Xeon 6505P is a powerful enterprise CPU, well-suited for demanding workloads that require high parallel processing and data integrity. With its 24 threads and support for ECC memory, this processor excels in environments where reliability and performance are crucial. While it lacks integrated graphics and overclocking flexibility, it remains an excellent choice for data-intensive tasks that demand efficient memory bandwidth and multi-threading capabilities. This makes it ideal for enterprise-level applications, providing both stability and performance for large-scale operations.

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