Feex·CPU
Intel · Xeon Platinum · Server

Intel® Xeon™ Platinum 8276

The Intel Xeon Platinum 8276 is a server processor released on April 1, 2019, built on the Cascade Lake architecture using a 14 nm process. It has 28 cores and 56 threads, a base clock of 2.20 GHz, a maximum boost of 4.00 GHz, 39 MB of L3 cache, a 165 W TDP and the FCLGA3647 socket.

Cores
28
Threads
56
Boost Clock
4.0 GHz
Base Clock
2.2 GHz
Architecture
Cascade Lake
Socket
FCLGA3647
TDP
165 W
L3 Cache
38.5 MB
Core layout
PPPPPPPPPPPPPPPPPPPPPPPPPPPP
28 Performance 56 Threads
Notable capabilities:AVX-512Extended Page Tables (EPT)

Best for

Heavy parallel simulation & compilationServer / professional infrastructure

Overview

The Intel Xeon Platinum 8276 is a server processor with 28 cores and 56 threads, built on the Cascade Lake architecture. It launched in Apr 2019. Clocks run from 2.2 GHz base to 4.0 GHz boost. A 38.5-MB L3 cache backs the cores (2.4 MB per core). It addresses DDR4 memory up to 1024 GB across 6 channels. The chip drops into the FCLGA3647 socket and exposes PCIe 3.0 (48 lanes). Rated TDP is 165 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

Core Configuration

Cores
28
Threads
56
Threads per Core
2
Base Clock
2.2 GHz
Boost Clock
4.0 GHz

The Intel Xeon Platinum 8276 has 28 physical cores and runs 56 logical threads. It runs 2 threads per core. It runs at a base clock of 2.20 GHz and boosts up to 4.00 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Xeon Platinum
Segment
Server
Generation
2nd Gen Intel Xeon Scalable Processors
Architecture
Cascade Lake
Codename
Cascade Lake
Lithography
14 nm
Release Date
Apr 2019

The Intel Xeon Platinum 8276 is a server processor, belongs to the Intel Xeon Platinum family, uses the Cascade Lake architecture, carries the codename Cascade Lake and is manufactured on a 14 nm process. It launched in Apr 2019.

Cache

L2 Cache (Total)
28 MB
L3 Cache
38.5 MB
Cache per Core
2.4 MB
Total Cache
66.5 MB

The Intel Xeon Platinum 8276 has 28 MB of L2 cache and 38.5 MB of L3 cache. That adds up to about 66.5 MB of cache, or 2.38 MB per core. Feex has no recorded L1 cache size for this processor.

Cache Hierarchy

L2L3
L2 28 MBL3 38.5 MB

The Intel Xeon Platinum 8276 has a 2-level cache hierarchy: L2 at 28 MB and L3 at 38.5 MB. L3 is the largest level and makes up about 58% of the cache listed here.

Memory Support

Max Memory
1 TB
Memory Channels
6
Memory Bandwidth
140.8 GB/s
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
2,933

The Intel Xeon Platinum 8276 supports DDR4 memory, addresses up to 1,024 GB of memory, uses 6 memory channels, runs memory at up to 2,933 MT/s and delivers up to 140.8 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

Graphics

Integrated Graphics
No

The Intel Xeon Platinum 8276 does not include integrated graphics, so a discrete graphics card is required for display output.

Platform & Compatibility

Socket
FCLGA3647
PCIe Generation
3.0
PCIe Lanes
48

The Intel Xeon Platinum 8276 uses the FCLGA3647 socket, supports PCI Express 3.0 and provides up to 48 PCIe lanes.

Power & Thermals

TDP
165 W

The Intel Xeon Platinum 8276 has a rated TDP of 165 W.

Platform Capabilities

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Instruction Sets

8 supported
Supported
AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)SSE4.2
Not supported
AMX
Not recorded
AVX-VNNICETCET-IBTCET-SSFMA3Hyper-Threading

Security and Reliability

5 supported
Supported
Execute Disable (NX)Boot GuardSGXTrusted ExecutionMode-Based Execute Control
Not recorded
AES-NIControl-flow Enforcement (CET)Hardware RNGHardware ShieldOS GuardOS Guard (SMAP)

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

OS Compatibility

1 supported
Supported
Windows 11 eligible

The Intel Xeon Platinum 8276 supports AES-NI, AVX-512, AVX2, AVX, FMA, SHA, 64-bit (x86-64) and SSE4.2 among its instruction set features. It does not support AMX. Feex has no record for AVX-VNNI, CET, CET-IBT, CET-SS, FMA3 and Hyper-Threading, which is different from being unsupported.

The Intel Xeon Platinum 8276 supports Execute Disable (NX), Boot Guard, SGX, Trusted Execution and Mode-Based Execute Control among its security features. Feex has no record for AES-NI, Control-flow Enforcement (CET), Hardware RNG, Hardware Shield, OS Guard and OS Guard (SMAP), which is different from being unsupported.

The Intel Xeon Platinum 8276 supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

Feex records the Intel Xeon Platinum 8276 as Windows 11 eligible.

Physical & Manufacturing

Launch Price
$9,981

The Intel Xeon Platinum 8276 is manufactured by Intel. It launched at a price of $9,981.

Naming & Aliases

Display Name
Intel® Xeon™ Platinum 8276
Model Number
8276
Product line brand
Xeon

The Intel Xeon Platinum 8276 is also identified by the model number 8276.

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon Platinum 8276 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 42% of the specifications it tracks for the Intel Xeon Platinum 8276. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L1 Cache (Total), L2 Cache (per Core) and L4 Cache. Memory Support: ECC Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number. Performance: single-core and multi-core ratings and all computed performance metrics.

Common questions

How many cores and threads does the Intel Xeon Platinum 8276 have?

The Intel Xeon Platinum 8276 has 28 cores and 56 threads.

What architecture does the Intel Xeon Platinum 8276 use?

The Intel Xeon Platinum 8276 is built on the Cascade Lake architecture.

Does the Intel Xeon Platinum 8276 have integrated graphics?

No. The Intel Xeon Platinum 8276 does not include integrated graphics.

What socket does the Intel Xeon Platinum 8276 use?

The Intel Xeon Platinum 8276 uses the FCLGA3647 socket.

What memory does the Intel Xeon Platinum 8276 support?

The Intel Xeon Platinum 8276 supports DDR4 up to 1024 GB across 6 channels.

How fast does the Intel Xeon Platinum 8276 run?

The Intel Xeon Platinum 8276 can boost up to 4.0 GHz, with a 2.2 GHz base clock.

What is the TDP of the Intel Xeon Platinum 8276?

The Intel Xeon Platinum 8276 has a TDP of 165 W.

What advanced capabilities does the Intel Xeon Platinum 8276 support?

Notable platform capabilities reported for the Intel Xeon Platinum 8276 include AVX-512, Extended Page Tables (EPT).

What is the Intel Xeon Platinum 8276 best for?

Based on its specifications, the Intel Xeon Platinum 8276 is well suited for Heavy parallel simulation & compilation, Server / professional infrastructure.

How much cache does the Intel Xeon Platinum 8276 have?

The Intel Xeon Platinum 8276 has 28672 KB of L2 cache and 38.5 MB of L3 cache.

Which features does the Intel Xeon Platinum 8276 not support?

The Intel Xeon Platinum 8276 does not support AMX.