Intel Sapphire Rapids-SP 56 Core Xeon CPU Spotted: ES Chip With 3.3 GHz Boost Clock, 420W Max Turbo Power, 764W BIOS Limit

The latest Intel Sapphire Rapids-SP Xeon CPU with 56 Golden Cove cores has been unearthed by Yuuki_ans. This chip is still an engineering sample but comes with much higher power numbers than the ones we have previously talked about.

Intel's Sapphire Rapids-SP 56 Core CPU Sample Operates at Up To 3.3 GHz in ES State, Draws An Insane 420W at MTP & 764W Peak Limit

The ES2 CPUs have leaked before too and we have seen boost frequencies of up to 3.3 GHz but that sample had a 270W TDP. The latest sample should either be Xeon Platinum 8476 or Platinum 8480 and rocks a total of 56 Golden Cove cores with 112 threads. The CPU carries 112 MB of L2 & 105 MB of L3 cache. The CPU was tested on an Intel C741 (Emmitsburg) platform with 1 TB DDR5 memory with CL40-39-38-76 timings.

As for the clock speeds, the Intel Sapphire Rapids-SP Xeon CPU was running at a base clock speed of 1.9 GHz and a boost clock speed of 3.3 GHz. The CPU has a maximum single-core boost clock of 3.7 GHz. The power figures are where things get insane as the processor running on the Socket E (LGA 4677) motherboard has a base TDP of 350W (PL1) and a maximum turbo power rating (PL2) rated at an insane 420W. But that's not all, the actual CPU (BIOS-enforced) power limit is reported at 764W which could be with AVX-512 enabled.

Intel Sapphire Rapids-SP Xeon CPU Clock & Power Profiles (Image Credits: Yuuki_ans):

As for how well the chip was operating, the Intel Sapphire Rapids-SP Xeon CPU can be seen running at 99C though we don't know what sort of cooling was used to test this chip. Bear in mind that load was not applied to the chip. While early performance benchmarks look decent enough against AMD EPYC Milan, the CPU will launch at a time when Genoa will be at its prime, and based on the power numbers here, things aren't looking great for Intel in the efficiency department. We know that the final samples will retain the power limits but they might offer better thermal & power management than the engineering samples. But whether or not that's enough to tackle AMD's EPYC lineup will remain to be seen.

Intel Xeon CPU Families (Preliminary):

Family Branding	Coral Rapids	Diamond Rapids	Clearwater Forest	Granite Rapids	Sierra Forest	Emerald Rapids	Sapphire Rapids	Ice Lake-SP	Cooper Lake-SP	Cascade Lake-SP/AP	Skylake-SP
Process Node	Intel 14A?	Intel 18A-P	Intel 18A	Intel 3	Intel 3	Intel 7	Intel 7	10nm+	14nm++	14nm++	14nm+
Platform Name	TBD	Intel Oak Stream	Intel Birch Stream	Intel Birch Stream	Intel Mountain Stream Intel Birch Stream	Intel Eagle Stream	Intel Eagle Stream	Intel Whitley	Intel Cedar Island	Intel Purley	Intel Purley
Core Architecture	TBD	Panther Cove-X	Darkmont	Redwood Cove	Sierra Glen	Raptor Cove	Golden Cove	Sunny Cove	Cascade Lake	Cascade Lake	Skylake
MCP (Multi-Chip Package) SKUs	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	Yes	No
Socket	TBD	LGA XXXX / 9324	LGA 4710 / 7529	LGA 4710 / 7529	LGA 4710 / 7529	LGA 4677	LGA 4677	LGA 4189	LGA 4189	LGA 3647	LGA 3647
Max Core Count	TBD	Up To 192 P-Cores	Up To 288	Up To 128	Up To 288	Up To 64?	Up To 56	Up To 40	Up To 28	Up To 28	Up To 28
Max Thread Count	TBD	Up To 192	Up To 288	Up To 256	Up To 288	Up To 128	Up To 112	Up To 80	Up To 56	Up To 56	Up To 56
Max L3 Cache	TBD	TBD	TBD	480 MB L3	108 MB L3	320 MB L3	105 MB L3	60 MB L3	38.5 MB L3	38.5 MB L3	38.5 MB L3
Memory Support	TBD	Up To 16-Channel DDR5-9000+	Up To 12-Channel DDR5-8000	Up To 12-Channel DDR5-6400 MCR-8800	Up To 12-Channel DDR5-6400	Up To 8-Channel DDR5-5600	Up To 8-Channel DDR5-4800	Up To 8-Channel DDR4-3200	Up To 6-Channel DDR4-3200	DDR4-2933 6-Channel	DDR4-2666 6-Channel
PCIe Gen Support	PCIe 6.0	PCIe 6.0	PCIe 5.0 (96 Lanes)	PCIe 5.0 (136 Lanes)	PCIe 5.0 (88Lanes)	PCIe 5.0 (80 Lanes)	PCIe 5.0 (80 lanes)	PCIe 4.0 (64 Lanes)	PCIe 3.0 (48 Lanes)	PCIe 3.0 (48 Lanes)	PCIe 3.0 (48 Lanes)
TDP Range (PL1)	TBD	TBD	Up To 500W	Up To 500W	Up To 350W	Up To 350W	Up To 350W	105-270W	150W-250W	165W-205W	140W-205W
3D Xpoint Optane DIMM	TBD	TBD	N/A	Donahue Pass	N/A	Crow Pass	Crow Pass	Barlow Pass	Barlow Pass	Apache Pass	N/A
Competition	TBD	AMD EPYC Venice	AMD EPYC Turin	AMD EPYC Turin	AMD EPYC Bergamo	AMD EPYC Genoa ~5nm	AMD EPYC Genoa ~5nm	AMD EPYC Milan 7nm+	AMD EPYC Rome 7nm	AMD EPYC Rome 7nm	AMD EPYC Naples 14nm
Launch	2028-2029	2027	2026	2024	2024	2023	2022	2021	2020	2018	2017

Follow Wccftech on Google to get more of our news coverage in your feeds.