Granite Rapids R1S: The new generation of Intel Xeon processors for the mainstream sector

The Intel RS1 is a special variant of the “Granite Rapids” Xeon 6 processor series. In contrast to the usual Xeon 6 models, the RS1 is aimed at a single-socket platform and supports up to 136 PCI-E 5.0 lanes. This focus is aimed at covering specific requirements in medium performance scenarios without requiring the more extensive features of the high-end models. The CPU falls into the range of processors that require less power and are intended to offer a balanced ratio between performance and energy consumption.

While most of the “Granite Rapids” processors are based on the LGA-7529 socket, this is not the case with the RS1. Instead, it is assumed that this processor uses the LGA-4710 socket. The RS1 operates in the 150 to 200 W TDP range, which sets it apart from the more powerful Xeon 6900 models with a TDP of 400 to 500 W. This difference is also reflected in the target group: while the Xeon 6900 CPUs are optimized for data centers and highly parallel applications with up to 128 cores, the RS1 is aimed at a broader range of applications that require fewer cores but other features, such as more PCI-E lanes.

An important feature of the RS1 is the support of up to 136 PCI-E 5.0 lanes. This makes it particularly suitable for applications that require a high number of PCI-E lanes, for example in memory-intensive workloads or in environments that require a high number of interfaces. This customization makes the RS1 a solution for specific use cases where the focus is not on the number of CPU cores, but on the ability to manage numerous external devices or storage connections via PCI-E lanes.

In contrast to the 6900 models, which can be equipped with up to 128 cores, the RS1 is generally offered with a maximum of 80 cores. This is sufficient for many medium workloads where the number of cores is less important than the ability to connect a large number of devices. Depending on the SKU, the number of cores might vary, but the RS1 essentially remains a less core-intensive but I/O-optimized alternative to the larger models in the series.

Intel recently introduced the “Sapphire Rapids Refresh” models, which are based on the E-cores and offer more cores and cache than their predecessors. However, the RS1 belongs to the P-core-based “Granite Rapids” models, which rely on powerful single cores. According to Intel, these models will be launched on the market in the coming weeks and are primarily designed for environments that require high computing power based on fewer cores and specific connectivity.

The LGA-7529 platform, which is used for the more powerful Xeon 6900 processors, is based on a dual socket design and therefore requires more power. These processors have a high TDP, usually between 400 and 500 W, and are optimized for demanding tasks that require very high computing power and many cores. The RS1, on the other hand, is intended for single-socket designs and has a lower TDP, which is usually between 150 and 200W. This lower power consumption fits the requirements of the mid-range segment, where efficiency and connectivity are more important than maximizing computing power.

In summary, the Intel RS1 is an interesting option for users who need a CPU that is optimized in terms of PCI-E lanes and power consumption without relying on an excessive number of cores. The processor aims for a balance between performance, energy efficiency and I/O capabilities and will play a role in applications where the management of many devices or storage solutions is paramount.

Source: servethehome