Intel Prepares Granite Rapids-WS Xeon Processors for High-End Workstations

Intel is set to make a significant return to the high-end desktop (HEDT) workstation segment with its upcoming "Granite Rapids-WS" Xeon processors. Recent leaks from reputable hardware sources have revealed a preliminary list of potential SKUs, highlighting their L3 cache sizes and base clock speeds. These new processors are poised to deliver substantial performance improvements for professional users and demanding workloads.

Granite Rapids-WS Architecture and Core Counts

The Granite Rapids-WS lineup is built on Intel’s advanced XCC (Extreme Core Count) server compute dies. This architecture utilizes two compute tiles, enabling configurations of up to 86 cores, and two I/O tiles that provide robust connectivity options, including support for PCIe and advanced memory controllers. If Intel aims to surpass the 86-core threshold, it would likely require the adoption of a larger UCC die and an expanded package design.

At the top of the leaked SKU list is the 698X model, featuring an impressive 336 MB of L3 cache and a 2.0 GHz all-core clock speed. The relatively lower frequency suggests this SKU may offer a higher core count, although official confirmation is still pending. Other SKUs in the lineup present a range of cache sizes and clock speeds, catering to various performance needs within the workstation market.

Memory Support and Platform Features

While specific details regarding memory support for the Granite Rapids-WS workstation processors remain unconfirmed, the server-class XCC family already supports DDR5-6400 memory and can achieve even higher effective speeds with MR-DIMMs. For workstation applications, Intel is expected to implement an eight-channel memory configuration to strike a balance between memory capacity and motherboard complexity. However, a 12-channel memory setup is also within the realm of possibility, depending on market requirements.

The Granite Rapids-WS processors are derived from Intel’s server-grade XCC dies, which allows for a streamlined path to higher core counts in workstation systems. These chips are adapted for workstations with a new socket and package design. Notably, the I/O die for Granite Rapids is manufactured on the Intel 7 process node, while the compute tiles utilize the more advanced Intel 3 node, ensuring a blend of performance and efficiency.

Leaked Granite Rapids-WS Xeon SKU List

  • 698X: 2.00 GHz, 336 MB L3 cache
  • 696X: 2.40 GHz, 336 MB L3 cache
  • 678X: 2.40 GHz, 192 MB L3 cache
  • 676X: 2.80 GHz, 144 MB L3 cache
  • 674X: 3.00 GHz, 144 MB L3 cache
  • 658X: 3.00 GHz, 144 MB L3 cache
  • 656: 2.90 GHz, 72 MB L3 cache
  • 654: 3.10 GHz, 72 MB L3 cache
  • 638: 3.20 GHz, 72 MB L3 cache
  • 636: 3.50 GHz, 48 MB L3 cache
  • 634: 2.70 GHz, 48 MB L3 cache

As Intel prepares to re-enter the HEDT workstation market, the Granite Rapids-WS Xeon processors are shaping up to offer a compelling combination of high core counts, large cache capacities, and advanced memory support. These features are expected to address the needs of professionals in fields such as content creation, engineering, and scientific computing, where workstation performance is paramount.