Intel’s Sapphire Rapids Xeon CPUs have witnessed an enormous delay and there are a variety of causes as to why that has occurred. Our good fellow, Igor Wallosek from Igor’s Lab, has an in depth define of what went unsuitable and when the chips can be really accessible.

Intel Sapphire Rapids Xeon CPUs Bugs, Production Woes, Vulnerabilities Among Countless Reasons For 2023 Delay

The Intel Sapphire Rapids Xeon CPU lineup for servers was meant to launch and compete with AMD’s EPYC Milan CPUs. Since their announcement, AMD has launched Milan, Milan-X, and can launch Genoa within the coming months. While we had been anticipating that Sapphire Rapids might ship across the similar time as Genoa, that does not appear to be the case because the launch is being pushed again to early 2023.

With a complete of 12 (!) steppings, they haven’t precisely coated themselves with glory both, and I can’t keep in mind any challenge to this point that wanted so many steppings earlier than you can even use it to some extent. This began with A0 and A1, then proceeded through B0, C0, C1, C2, D0, E0, E2, E3 and E4 till presently stepping E5! The market launch was deliberate about 1.5 years in the past and the plan was just lately up to date once more.

Until now, Intel’s clients and companions assumed that the chips could be accessible within the second half of 2022, however inner data is now changing into a bit extra concrete. Intel has now introduced the “launch window” for Sapphire Rapids (SPR) for calendar week 6 to 9 (Feb. 6, 2023 to March 3, 2023), whereas the primary cargo to chose recipients continues to be scheduled for 2022 in two waves. Calendar week 42 for the smallest fashions (2S) and calendar week 45 for the bigger fashions (4 and 8S) are being speculated.

through Igor’s Lab

According to Igor, for the time being, Intel has a complete of 12 Steppings for its Sapphire Rapids Xeon CPUs. There are A0, A1, B0, C0, C1, C2, D0, E0, E2, E3, E4, and the latest E5 stepping. The fundamental cause why there are such a lot of steppings is that Sapphire Rapids manufacturing hasn’t been groundbreaking and on the way in which, Intel encountered numerous issues.

Intel Xeon W9-3495 Sapphire Rapids HEDT CPU Spotted - Rocks 56 Cores, 112 Threads & a 1.80 GHz ES Clock Speed

One of those issues is a safety vulnerability that was encountered within the earlier chip iteration. While Intel has a brand new stepping on the way in which, a few of Intel’s clients had been reluctant to attend and ordered the affected chips however in addition they aren’t going to make the most of the affected portion of the CPU so they’ll stay unaffected by the vulnerability. There’s additionally speak about Intel transport out low-end SKUs earlier whereas the high-volume provide is predicted to ship later.

As per Igor’s Lab, in keeping with inner paperwork, the most recent Intel Sapphire Rapids Xeon CPU launch is pitted between weeks 6 to 9 of 2023. That’s between February sixth, 2023 until March third, 2023.

Yeah. And giving a bit extra element on Sapphire, we’re already ramping a variety of SKUs of Sapphire Rapids already. They started ramping final quarter. So we have now a variety of these ramping.

The explicit challenge that we highlighted wasn’t affecting these SKUs, so these proceed to ramp. So we did one other tape out, which I’ll say, for the bigger quantity SKUs, and people can be quantity transport within the second half of the yr. So you may see us ramping these and launching these. So we’re absolutely on observe for that, and we really feel like we’re over the entire points that we have had in bringing that product to market.

So we really feel very comfy with that. We’re then working very intently — emerald goes into the Sapphire platform. So we’re working very intently with our clients on the timing there. The product is wanting very wholesome.

So we’re properly on observe. So that can be a ’23 product. And then Granite and Sierra Forest is the ’24 product. And simply to remind everyone, it is a main new platform.

Intel CEO, Pat Gelsinger (Q2 2022 Earnings Call)

We have additionally seen some early efficiency numbers for Sapphire Rapids Xeon CPUs and issues do not look nice for Intel as they missed out massive to compete towards Milan. While the chiplet CPU design permits for greater ASPs, the approaching delay implies that there are clearly going to be some main penalties and hostile ones for the pushback. Intel has additionally highlighted their next-generation Emerald Rapids CPUs which they’re anticipating to launch by 2023 and Granite Rapids chips by 2024 although, given the present delay, we won’t put an excessive amount of belief within the figures.

Intel Xeon SP Families (Preliminary):

Family Branding Skylake-SP Cascade Lake-SP/AP Cooper Lake-SP Ice Lake-SP Sapphire Rapids Emerald Rapids Granite Rapids Diamond Rapids
Process Node 14nm+ 14nm++ 14nm++ 10nm+ Intel 7 Intel 7 Intel 3 Intel 3?
Platform Name Intel Purley Intel Purley Intel Cedar Island Intel Whitley Intel Eagle Stream Intel Eagle Stream Intel Mountain Stream

Intel Birch Stream
Intel Mountain Stream

Intel Birch Stream
Core Architecture Skylake Cascade Lake Cascade Lake Sunny Cove Golden Cove Raptor Cove Redwood Cove? Lion Cove?
IPC Improvement (Vs Prev Gen) 10% 0% 0% 20% 19% 8%? 35%? 39%?
MCP (Multi-Chip Package) SKUs No Yes No No Yes Yes TBD (Possibly Yes) TBD (Possibly Yes)
Socket LGA 3647 LGA 3647 LGA 4189 LGA 4189 LGA 4677 LGA 4677 TBD TBD
Max Core Count Up To 28 Up To 28 Up To 28 Up To 40 Up To 56 Up To 64? Up To 120? Up To 144?
Max Thread Count Up To 56 Up To 56 Up To 56 Up To 80 Up To 112 Up To 128? Up To 240? Up To 288?
Max L3 Cache 38.5 MB L3 38.5 MB L3 38.5 MB L3 60 MB L3 105 MB L3 120 MB L3? 240 MB L3? 288 MB L3?
Vector Engines AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-1024/FMA3? AVX-1024/FMA3?
Memory Support DDR4-2666 6-Channel DDR4-2933 6-Channel Up To 6-Channel DDR4-3200 Up To 8-Channel DDR4-3200 Up To 8-Channel DDR5-4800 Up To 8-Channel DDR5-5600? Up To 12-Channel DDR5-6400? Up To 12-Channel DDR6-7200?
PCIe Gen Support PCIe 3.0 (48 Lanes) PCIe 3.0 (48 Lanes) PCIe 3.0 (48 Lanes) PCIe 4.0 (64 Lanes) PCIe 5.0 (80 lanes) PCIe 5.0 (80 Lanes) PCIe 6.0 (128 Lanes)? PCIe 6.0 (128 Lanes)?
TDP Range (PL1) 140W-205W 165W-205W 150W-250W 105-270W Up To 350W Up To 375W? Up To 400W? Up To 425W?
3D Xpoint Optane DIMM N/A Apache Pass Barlow Pass Barlow Pass Crow Pass Crow Pass? Donahue Pass? Donahue Pass?
Competition AMD EPYC Naples 14nm AMD EPYC Rome 7nm AMD EPYC Rome 7nm AMD EPYC Milan 7nm+ AMD EPYC Genoa ~5nm AMD EPYC Bergamo AMD EPYC Turin AMD EPYC Venice
Launch 2017 2018 2020 2021 2022 2023? 2024? 2025?