Intel® Xeon™ E7-2803
The Intel Xeon E7-2803 is a server processor released on April 1, 2011, built on the Westmere architecture using a 32 nm process. It has 6 cores and 12 threads, a base clock of 1.73 GHz, 18 MB of L3 cache, a 105 W TDP and the FCLGA1567 socket.
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Overview
SummaryThe Intel Xeon E7-2803 is a server processor with 6 cores and 12 threads, built on the Westmere architecture. It launched in Apr 2011. A 18-MB L3 cache backs the cores (3.3 MB per core). It addresses DDR3 memory up to 1024 GB across 4 channels. It uses the FCLGA1567 socket. Rated TDP is 105 W. Notable platform capabilities: Extended Page Tables (EPT).
Core Configuration
4 specsThe Intel Xeon E7-2803 has 6 physical cores and runs 12 logical threads. It runs 2 threads per core. It runs at a base clock of 1.73 GHz.
Architecture & Generation
8 specsThe Intel Xeon E7-2803 is a server processor, belongs to the Intel Xeon E7 family, uses the Westmere architecture, carries the codename Westmere EX and is manufactured on a 32 nm process. It launched in Apr 2011.
Cache
4 specsThe Intel Xeon E7-2803 has 1.50 MB of L2 cache and 18 MB of L3 cache. That adds up to about 19.5 MB of cache, or 3.25 MB per core. Feex has no recorded L1 cache size for this processor.
Cache Hierarchy
2 levelsThe Intel Xeon E7-2803 has a 2-level cache hierarchy: L2 at 1.5 MB and L3 at 18 MB. L3 is the largest level and makes up about 92% of the cache listed here.
Memory Support
8 specsThe Intel Xeon E7-2803 supports DDR3 memory, addresses up to 1,024 GB of memory, uses 4 memory channels, runs memory at up to 1,333 MT/s and delivers up to 42.7 GB/s of memory bandwidth. It does not support DDR5, DDR4 and LPDDR memory.
Platform & Compatibility
1 specThe Intel Xeon E7-2803 uses the FCLGA1567 socket.
Power & Thermals
1 specThe Intel Xeon E7-2803 has a rated TDP of 105 W.
Platform Capabilities
11 supported, 1 not supportedInstruction 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 supportedSecurity and Reliability
0 supportedVirtualization
3 supportedOS Compatibility
0 supportedThe Intel Xeon E7-2803 supports 64-bit (x86-64), SSE4.1, SSE4.2, SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.
Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Boot Guard, Hardware RNG and Hardware Shield, which is different from being unsupported.
The Intel Xeon E7-2803 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 these as not true for the Intel Xeon E7-2803: Windows 11 eligible.
Physical & Manufacturing
1 specThe Intel Xeon E7-2803 is manufactured by Intel. It launched at a price of $774.
Naming & Aliases
3 specsThe Intel Xeon E7-2803 is also identified by the model number E7-2803.
Real-world compute in the Feex fleet
No machines yetNo Feex fleet machines with the Intel Xeon E7-2803 have reported compute telemetry yet, so real-world compute for this processor is not recorded.
Data Coverage
37% recordedFeex has recorded 37% of the specifications it tracks for the Intel Xeon E7-2803. 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. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. 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
8 answeredHow many cores and threads does the Intel Xeon E7-2803 have?
The Intel Xeon E7-2803 has 6 cores and 12 threads.
What architecture does the Intel Xeon E7-2803 use?
The Intel Xeon E7-2803 is built on the Westmere architecture.
What socket does the Intel Xeon E7-2803 use?
The Intel Xeon E7-2803 uses the FCLGA1567 socket.
What memory does the Intel Xeon E7-2803 support?
The Intel Xeon E7-2803 supports DDR3 up to 1024 GB across 4 channels.
What is the TDP of the Intel Xeon E7-2803?
The Intel Xeon E7-2803 has a TDP of 105 W.
What advanced capabilities does the Intel Xeon E7-2803 support?
Notable platform capabilities reported for the Intel Xeon E7-2803 include Extended Page Tables (EPT).
What is the Intel Xeon E7-2803 best for?
Based on its specifications, the Intel Xeon E7-2803 is well suited for Server / professional infrastructure.
How much cache does the Intel Xeon E7-2803 have?
The Intel Xeon E7-2803 has 1536 KB of L2 cache and 18 MB of L3 cache.