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Architecture and Cores
The AMD EPYC 7662 is built on the Zen 3 architecture, which provides significant improvements in instructions per clock (IPC) and cache performance. This processor features 8 cores with a base clock speed of 2.0 GHz and a boost clock speed of up to 3.7 GHz. Each core is paired with its own 512 KB level 1 cache and 32 MB level 3 cache, ensuring efficient execution of complex workloads.
Thread Count and SMT
The EPYC 7662 supports Simultaneous Multithreading (SMT), also known as Intel’s Hyper-Threading Technology. This allows the processor to execute up to 128 threads simultaneously, making it an excellent choice for applications that can take advantage of multiple threads.
Memory and Bandwidth
The AMD EPYC 7662 features a quad-channel memory architecture with support for DDR4-3200 memory. Each channel has a bandwidth of up to 85 GB/s, resulting in a total aggregated bandwidth of 340 GB/s. This is significantly higher than the bandwidth offered by Intel’s Xeon processors.
PCIe Lanes and Storage
The EPYC 7662 boasts an impressive 128 lanes of PCIe 4.0, providing ample connectivity for storage devices, network cards, and other peripherals. With support for NVMe SSDs, this processor is well-suited for applications that require high-speed storage access.
Power Consumption and TDP
The AMD EPYC 7662 has a Thermal Design Power (TDP) of 250W, which is relatively high compared to its Intel Xeon counterparts. However, the processor’s power consumption is still within reasonable limits, making it suitable for use in datacenter environments.
Comparison to Competitors
In direct comparison to Intel’s Xeon Platinum 8380, the EPYC 7662 offers an impressive array of features and specifications. While both processors have similar core counts and thread counts, the EPYC 7662 boasts higher memory bandwidth, more PCIe lanes, and a lower price point.
Conclusion
The AMD EPYC 7662 is a formidable server processor that challenges Intel’s dominance in the high-end market. With its impressive array of features, including quad-channel memory, PCIe 4.0 connectivity, and SMT support, this processor is well-suited for applications that require high-performance computing, such as cloud providers, datacenter operators, and enterprise organizations.
Technical Specifications:
- Cores: 8
- Threads: 128 (SMT)
- Base Clock Speed: 2.0 GHz
- Boost Clock Speed: up to 3.7 GHz
- Cache: 512 KB L1, 32 MB L3
- Memory Support: DDR4-3200, quad-channel
- PCIe Lanes: 128 lanes, PCIe 4.0
- Storage Support: NVMe SSDs
- Power Consumption: 250W TDP
Comparison to Intel Xeon Platinum 8380:
- Cores: 40 vs 8 (EPYC 7662)
- Threads: 80 vs 128 (SMT) (Xeon 8380)
- Memory Bandwidth: up to 85 GB/s vs 64 GB/s (Xeon 8380)
- PCIe Lanes: 256 lanes vs 128 lanes (EPYC 7662)
- Price Point: lower than Xeon 8380