Let’s first look back: Intel’s nevertheless very successful HEDT line ended in 2019 with the Core X series, almost 3 years ago. Since then, the company has launched three complete generations of mobile and desktop CPUs, but completely ignored the HEDT platform. In the meantime, the Core desktop chips of the 13th generation offer a high performance. The new generation offers a much higher performance per core than the old Core X models, not to mention newer technologies like PCI Express Gen 5, DDR5 memory and Thunderbolt 4. Thus, this once so powerful platform has been cannibalized with consumer products.
AMD had a really resounding success with the Threadripper processors, especially starting with the second series in 2018, and the third and current generation also debuted in 2019 shortly after Intel’s Core X 10000 series. With up to 64 cores at the beginning, this used to be an offer that no one could refuse, but the third-generation Threadripper has of course also aged in honor in the meantime. But it proved to have much more stamina in contrast to the Core-X. However, its time has also expired in the meantime, since AMD has not added anything for the HEDT desktop.
And where can we now look for the reasons for this? From my point of view, it is mainly the enormous competition in terms of consumer processor performance between AMD and Intel. The desktop CPUs for the consumer sector have become significantly more powerful, also and especially in the multi-thread area. However, many applications cannot even effectively use more cores than what is currently offered, which has rather slowed down the demand for a HEDT CPU solution for the desktop. However, one should not forget the general and global problems in the supply chains and the worldwide shortage of raw materials. Then priority is always given to what yields more profit.
Intel is now pushing into this perceived “HEDT gap” with Sapphire Rapids because the new Intel processors of the Xeon W-3400 and Xeon W-2400 family represent, from Intel’s point of view, an architectural turning point in terms of performance and scalability for professional high-end computing requirements. The use of Embedded Multi-Die Interconnect Bridge (EMIB) technology and the resulting ability to connect multiple heterogeneous chips into a single solution is seen as a definite advantage. This technology enables up to 56 cores in a single socket. This also provides professionals on the desktop with double the core count compared to the previous generation to handle compute-intensive workflows with high threading.
At the same time, the focus is on CPU speeds of up to 4.8 GHz with Intel® Turbo Boost Max Technology 3.0 in light-threaded applications and thus also wants to increase the system’s responsiveness. An expanded Smart Cache of up to 105 MB is expected to reduce latency for complex workloads such as code compilation or rendering by significantly decreasing the time required to exchange data between cache and memory. With this new computing architecture designed to optimize CPU performance across all workloads, creatives, engineers, and data scientists can perform at their best. Is this now Intel’s successful return to the HEDT platform, which AMD is obviously deliberately neglecting right now? Quite possible.
This new model line is led by the Intel Xeon w9-3495X (see table), the most powerful desktop workstation processor Intel has ever developed. These new Xeon processors are shearly designed for professional developers and are intended to deliver tremendous performance for media and entertainment, engineering and data science professionals.
Intel actually sees itself quite well positioned here, if you believe the words of Roger Chandler (Intel Vice President and General Manager, Creator and Workstation Solutions, Client Computing Group):
The portfolio of both series reads in detail as listed here in a table, although the processors of both series differ somewhat. But more on that in a moment, here is the overview first:
| CPU Name | Cores / Threads | Base Clock | Max Boost | L3 Cache | Memory Support | Max PCIe Gen5 Lanes | TDP |
|---|---|---|---|---|---|---|---|
| Xeon W9-3495X | 56/112 | 1.9 GHz | 4.8 GHz | 105 MB | 8-Channel DDR5 | 112 Gen 5 | 350W |
| Xeon W9-3475X | 36/72 | 2.2 GHz | 4.8 GHz | 82.5 MB | 8-Channel DDR5 | 112 Gen 5 | 300W |
| Xeon W7-3465X | 28/56 | 2.5 GHz | 4.8 GHz | 75.0 MB | 8-Channel DDR5 | 112 Gen 5 | 300W |
| Xeon W7-3455 | 24/48 | 2.5 GHz | 4.8 GHz | 67.5 MB | 8-Channel DDR5 | 112 Gen 5 | 270W |
| Xeon W7-3445 | 20/40 | 2.6 GHz | 4.8 GHz | 52.5 MB | 8-Channel DDR5 | 112 Gen 5 | 270W |
| Xeon W5-3435X | 16/32 | 2.1 GHz | 4.7GHz | 45.0 MB | 8-Channel DDR5 | 112 Gen 5 | 270W |
| Xeon W5-3433 | 16/32 | 2.0 GHz | 4.2 GHz | 45.0 MB | 8-Channel DDR5 | 112 Gen 5 | 220W |
| Xeon W5-3425 | 12/24 | 3.2 GHz | 4.6 GHz | 30.0 MB | 8-Channel DDR5 | 112 Gen 5 | 270W |
| Xeon W5-3423 | 12/24 | 2.1 GHz | 4.2 GHz | 30.0 MB | 8-Channel DDR5 | 112 Gen 5 | 220W |
| Xeon W7-2495X | 24/48 | 2.5 GHz | 4.8 GHz | 45.0 MB | 4-Channel DDR5 | 64 Gen 5 | 225W |
| Xeon W7-2475X | 20/40 | 2.6 GHz | 4.8 GHz | 37.5 MB | 4-Channel DDR5 | 64 Gen 5 | 225W |
| Xeon W5-2465X | 16/32 | 3.1 GHz | 4.7GHz | 33.7 MB | 4-Channel DDR5 | 64 Gen 5 | 200W |
| Xeon W5-2445X | 12/24 | 3.2 GHz | 4.6 GHz | 30.0 MB | 4-Channel DDR5 | 64 Gen 5 | 200W |
| Xeon W5-2445 | 10/20 | 3.1 GHz | 4.6 GHz | 26.2 MB | 4-Channel DDR5 | 64 Gen 5 | 175W |
| Xeon W5-2435 | 8/16 | 3.1 GHz | 4.5 GHz | 22.5 MB | 4-Channel DDR5 | 64 Gen 5 | 165W |
| Xeon W3-2425 | 6/12 | 3.0 GHz | 4.4 GHz | 15.0 MB | 4-Channel DDR5 | 64 Gen 5 | 130W |
| Xeon W3-2423 | 6/6 | 2.1 GHz | 4.2 GHz | 15.0 MB | 4-Channel DDR5 | 64 Gen 5 | 110W |
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