Intel® Xeon™ E5620
The Intel Xeon E5620 is a server processor released on March 16, 2010, built on the Westmere architecture. It has 4 cores and 8 threads, a base clock of 2.40 GHz, a maximum boost of 2.66 GHz, 12 MB of L3 cache, a 80 W TDP and the FCLGA1366 socket.
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Overview
SummaryThe Intel Xeon E5620 is a server processor with 4 cores and 8 threads, built on the Westmere architecture. It launched in Mar 2010. Clocks run from 2.4 GHz base to 2.66 GHz boost. A 12-MB L3 cache backs the cores (3.0 MB per core). It supports DDR3 memory. It uses the FCLGA1366 socket. Rated TDP is 80 W.
Performance
12 metricsThe Intel Xeon E5620 scores 1,075 in single-core performance and 3,517 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,944 for overall performance, 3,791 for productivity performance, 3,869 for creator performance, 3,385 for engineering performance and 4,104 for gaming performance. Its multi-core throughput works out to 879 per core, 440 per thread and 44 per watt. Its computed efficiency index is 217. Its performance index is 24, so its overall performance is 76% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.
Workload sub-scores (integer math, floating point, compression, encryption, physics, SIMD, prime sieve and sorting) are not recorded for the Intel Xeon E5620.
How these scores are computed
Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.
- Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
- Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
- Creator performance is 0.55 times multi-core plus 1.8 times single-core.
- Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
- Gaming performance is 3 times single-core plus 0.25 times multi-core.
- Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
- The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
- The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.
Core Configuration
7 specsThe Intel Xeon E5620 has 4 physical cores and runs 8 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 2.40 GHz and boosts up to 2.66 GHz.
Architecture & Generation
5 specsThe Intel Xeon E5620 is a server processor, belongs to the Intel Xeon E family and uses the Westmere architecture. It launched in Mar 2010.
Cache
3 specsThe Intel Xeon E5620 has 12 MB of L3 cache. That adds up to about 12.0 MB of cache, or 3.00 MB per core. Feex has no recorded L1 cache size for this processor.
Memory Support
5 specsThe Intel Xeon E5620 supports DDR3 memory and runs memory at up to 1,066 MT/s. It does not support DDR5, DDR4 and LPDDR memory.
Platform & Compatibility
1 specThe Intel Xeon E5620 uses the FCLGA1366 socket.
Power & Thermals
1 specThe Intel Xeon E5620 has a rated TDP of 80 W.
Platform Capabilities
8 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
0 supportedOS Compatibility
0 supportedThe Intel Xeon E5620 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.
Feex has no record for Extended Page Tables (EPT), VT-d (DMA Remapping), VT-x (Hardware Virtualization), VT-x with EPT, IOMMU and Second-Level Address Translation, which is different from being unsupported.
Feex records these as not true for the Intel Xeon E5620: Windows 11 eligible.
Physical & Manufacturing
1 specThe Intel Xeon E5620 is manufactured by Intel. It launched at a price of $387.
Naming & Aliases
3 specsReal-world compute in the Feex fleet
No machines yetNo Feex fleet machines with the Intel Xeon E5620 have reported compute telemetry yet, so real-world compute for this processor is not recorded.
Data Coverage
46% recordedFeex has recorded 46% of the specifications it tracks for the Intel Xeon E5620. Values Feex does not hold are shown as "Not recorded" rather than estimated.
Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core) and L4 Cache. Memory Support: Memory Channels, Memory Bandwidth and 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: SKU, Model Number, Processor Number and Part Number.
Common questions
10 answeredHow many cores and threads does the Intel Xeon E5620 have?
The Intel Xeon E5620 has 4 cores and 8 threads.
What architecture does the Intel Xeon E5620 use?
The Intel Xeon E5620 is built on the Westmere architecture.
What socket does the Intel Xeon E5620 use?
The Intel Xeon E5620 uses the FCLGA1366 socket.
What memory does the Intel Xeon E5620 support?
The Intel Xeon E5620 supports DDR3.
How fast does the Intel Xeon E5620 run?
The Intel Xeon E5620 can boost up to 2.66 GHz, with a 2.4 GHz base clock.
What is the TDP of the Intel Xeon E5620?
The Intel Xeon E5620 has a TDP of 80 W.
How does the Intel Xeon E5620 perform?
In the Feex normalized performance dataset, the Intel Xeon E5620 scores 3,517 multi-core and 1,075 single-core.
What is the Intel Xeon E5620 best for?
Based on its specifications, the Intel Xeon E5620 is well suited for Server / professional infrastructure.
How much cache does the Intel Xeon E5620 have?
The Intel Xeon E5620 has 12 MB of L3 cache.
How does the Intel Xeon E5620 compare with the Intel Core i5-12400?
The Intel Xeon E5620 has a computed performance index of 24, which is 76% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.