AMD Epyc 4465P VS AMD Epyc 4545P

The AMD Epyc 4465P and AMD Epyc 4545P share several key specifications in the general info category. Both processors feature a Thermal Design Power (TDP) of 65W, which indicates similar power efficiency. They are also built using the same 4 nm semiconductor process, providing the same level of miniaturization and performance potential.

Both processors support PCI Express (PCIe) version 5, ensuring compatibility with the latest generation of high-speed peripherals. Additionally, both processors support 64-bit computing, which is standard for modern applications and operating systems.

Neither the AMD Epyc 4465P nor the AMD Epyc 4545P include integrated graphics, so users will need a separate GPU if graphical capabilities are required.

The AMD Epyc 4465P and AMD Epyc 4545P differ in several performance-related specifications. The Epyc 4465P operates with 12 cores, each running at a base speed of 3.4 GHz, while the Epyc 4545P has 16 cores running at a slightly lower base speed of 3 GHz. This gives the Epyc 4545P a higher thread count of 32 threads compared to the Epyc 4465P's 24 threads.

Both processors feature the same turbo clock speed of 5.4 GHz, ensuring they can achieve high performance during demanding tasks. The L3 cache is the same on both models, at 64 MB, while the L1 cache on the Epyc 4465P is 960 KB, slightly lower than the 1280 KB on the Epyc 4545P. The L2 cache is also larger on the Epyc 4545P, with 16 MB compared to the 12 MB on the Epyc 4465P.

In terms of cache per core, the Epyc 4465P has 5.33 MB of L3 cache per core, while the Epyc 4545P has a lower 4 MB per core. Both processors feature the same L2 core size of 1 MB per core and an unlocked multiplier, allowing for overclocking potential. The Epyc 4465P has a higher clock multiplier of 34, compared to the Epyc 4545P’s 30.

Both the AMD Epyc 4465P and AMD Epyc 4545P offer identical specifications in terms of memory capabilities. Both processors support ECC memory, which provides error correction to enhance system reliability. They also have the same maximum memory bandwidth of 89.6 GB/s, ensuring that both models can handle high-speed data transfers effectively.

Both processors use DDR5 memory, with a maximum RAM speed of 5600 MHz. The maximum memory amount supported by each processor is 192 GB, offering ample capacity for memory-intensive applications.

Additionally, both models feature 2 memory channels, which allows for efficient communication between the CPU and RAM, optimizing overall memory performance.

The AMD Epyc 4465P and AMD Epyc 4545P share identical features in this category. Both processors support multithreading, allowing them to handle multiple tasks concurrently for improved performance in multi-threaded workloads.

Both processors also support the same set of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, enabling them to execute a wide variety of modern instructions for enhanced processing power and versatility in different applications.

Additionally, both the Epyc 4465P and Epyc 4545P include the NX bit (No Execute) feature, providing an additional layer of security by marking certain areas of memory as non-executable, which helps protect against certain types of malware and exploits.

The AMD Epyc 4465P and AMD Epyc 4545P show differences in their benchmark results. The Epyc 4465P has a PassMark result of 50492, while the Epyc 4545P scores higher with a result of 55388, indicating slightly better overall performance for the Epyc 4545P in multi-threaded scenarios.

In terms of single-threaded performance, the Epyc 4465P achieves a score of 4611, while the Epyc 4545P is very close with a score of 4568. Although the Epyc 4545P slightly outperforms the Epyc 4465P in single-threaded benchmarks, the difference is relatively small.

Both processors demonstrate strong performance, but the Epyc 4545P overall has a higher benchmark score in both multi-threaded and single-threaded tests.