Intel’s Granite Rapids and Sierra Forest detailed
The data centers that power the Internet and online services consume large amounts of electricity, and tech firms are facing increasing pressure to keep or reduce the amount of energy they use. In this context, Intel announced that the Sierra Forest chip will have 240% better performance per watt than the current generation data center chip. As part of HotChips 2023, for the first time, Intel divides data center processors into two categories: the “Granite Rapids” series, which focus on performance (P-Core) but consume more power, and the “Sierra Forest” series, which is more efficient (E-Core).
Compute die on Intel Xeon Granite Rapids chips will target higher performance and efficiency using the latest Intel 3 compute node. Intel Xeon Sierra Forest will aim to provide best-in-class energy-performance density, offering distinct advantages for cloud-native and hyperscale workloads. According to Intel, this series will offer 2.4 times higher performance per watt. However, P-Core (Granite Rapids) Intel Xeon processors will provide 2-3x better performance for mixed AI workloads.
According to the current roadmap, Intel’s 5th Gen Emerald Rapids Xeon CPUs will launch in Q4 2023, followed by Sierra Forest in the first half of 2024. Then, the P-Core supported Granite Rapids family will continue to follow.
DH | granite rapids | Sierra Forest | Emerald Rapids |
---|---|---|---|
Process time | Intel 3 | Intel 3 | Intel 7 |
Platform | Intel MountainStream Intel BirchStream |
Intel MountainStream Intel BirchStream |
Intel EagleStream |
Core architecture | Redwood Cove | Sierra Cove | RaptorCove |
MCP (Multi-Chip Package) | Yes | Yes | Yes |
Socket | LGA 4677 / 7529 | LGA 4677 / 7529 | LGA 4677 |
Maximum number of cores | 136? | 144 | 64 |
Maximum number of threads | 272? | 144 | 128 |
Maximum L2 cache | ? | 108MB L3 | 320MB L3 |
Memory support | Up to 12 channels DDR5-5600 | Up to 8 channels DDR5-6400 | Up to 8 channels DDR5-5600 |
PCIe support | PCIe 5.0 (136 lanes) | PCIe 5.0 | PCIe 5.0 (80 lanes) |
TDP (PL1) | 500W | 350W | 350W |
Rival | AMD EPYC Turin | AMD EPYC Bergamo | AMD EPYC Genoa |
Release date | 2024 | 2024 | 2023 |