Feex·CPU
Intel · Xeon · Server

Intel® Xeon™ L3426

The Intel Xeon L3426 is a server processor released on September 8, 2009. It has 4 cores and 8 threads, a base clock of 1.87 GHz, a maximum boost of 3.20 GHz, 8 MB of L3 cache, a 45 W TDP and the FCLGA1156 socket.

Cores
4
Threads
8
Boost Clock
3.2 GHz
Base Clock
1.87 GHz
Socket
FCLGA1156
TDP
45 W
L3 Cache
8 MB
Multi-Core Performance
2,742
Core layout
PPPP
4 Performance 8 Threads

Best for

Server / professional infrastructure

Overview

The Intel Xeon L3426 is a server processor with 4 cores and 8 threads. It launched in Sep 2009. Clocks run from 1.87 GHz base to 3.2 GHz boost. A 8-MB L3 cache backs the cores (2.3 MB per core). It supports DDR3 memory. It uses the FCLGA1156 socket. Rated TDP is 45 W.

Performance

Overall CPU Performance computed
1,858
7% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
2,742
2% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
1,259
23% of reference
Reference ceiling 5,500
Productivity Performance computed
3,545
2% of reference
Reference ceiling 160,000
Creator Performance computed
3,774
3% of reference
Reference ceiling 140,000
Engineering Performance computed
2,639
1% of reference
Reference ceiling 200,000
Gaming Performance computed
4,463
20% of reference
Reference ceiling 22,000
Performance per Core computed
686
3% of reference
Reference ceiling 21,053
Performance per Thread computed
343
3% of reference
Reference ceiling 10,527
Performance per Watt computed
61
3% of reference
Reference ceiling 2,000
Efficiency Index computed
277
7% of reference
Reference ceiling 4,000
Performance index computed
23
Intel Core i5-12400 = 100

The Intel Xeon L3426 scores 1,259 in single-core performance and 2,742 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,858 for overall performance, 3,545 for productivity performance, 3,774 for creator performance, 2,639 for engineering performance and 4,463 for gaming performance. Its multi-core throughput works out to 686 per core, 343 per thread and 61 per watt. Its computed efficiency index is 277. Its performance index is 23, so its overall performance is 77% 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.

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.

Workload Benchmarks

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

Integer Math Throughput
14,595
2% of reference
Reference ceiling 617,811
75% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
6,312
1% of reference
Reference ceiling 600,000
86% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
58,100
3% of reference
Reference ceiling 2,309,868
75% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
512
0% of reference
Reference ceiling 137,106
96% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
402
3% of reference
Reference ceiling 12,291
63% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
1,706
1% of reference
Reference ceiling 172,975
89% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
24
2% of reference
Reference ceiling 1,067
64% below the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
8,078
3% of reference
Reference ceiling 260,323
64% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Xeon L3426 scores 14,595 in integer math, 6,312 in floating-point math, 58,100 in compression, 512 in cryptography, 402 in physics simulation, 1,706 in vector SIMD, 24 in the prime sieve and 8,078 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 75% below in integer math, 86% below in floating-point math, 75% below in compression, 96% below in cryptography, 63% below in physics simulation, 89% below in vector SIMD, 64% below in the prime sieve and 64% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

Core Configuration

Cores
4
Threads
8
Performance Cores
4
Threads per Core
2
Hybrid Architecture
No
Base Clock
1.87 GHz
Boost Clock
3.2 GHz

The Intel Xeon L3426 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 1.87 GHz and boosts up to 3.20 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Xeon
Segment
Server
Generation
Not recorded
Architecture
Not recorded
Process Node
Not recorded
Lithography
Not recorded
Release Date
Sep 2009

The Intel Xeon L3426 is a server processor and belongs to the Intel Xeon family. It launched in Sep 2009.

Cache

L1 Cache (Total)
256 KB
L2 Cache (Total)
1 MB
L2 Cache (per Core)
256 KB
L3 Cache
8 MB
Cache per Core
2.3 MB
Total Cache
9.3 MB

The Intel Xeon L3426 has 256 KB of L1 cache, 1 MB of L2 cache and 8 MB of L3 cache. That adds up to about 9.3 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

Cache Hierarchy

L1L2L3
L1 256 KBL2 1 MBL3 8 MB

The Intel Xeon L3426 has a 3-level cache hierarchy: L1 at 256 KB, L2 at 1 MB and L3 at 8 MB. L3 is the largest level and makes up about 86% of the cache listed here.

Memory Support

Max Memory
Not recorded
Memory Types
DDR3
DDR5 Support
No
DDR4 Support
No
LPDDR Support
No
Max Memory Speed
1,333

The Intel Xeon L3426 supports DDR3 memory and runs memory at up to 1,333 MT/s. It does not support DDR5, DDR4 and LPDDR memory.

Platform & Compatibility

Socket
FCLGA1156
PCIe Generation
Not recorded

The Intel Xeon L3426 uses the FCLGA1156 socket.

Power & Thermals

TDP
45 W

The Intel Xeon L3426 has a rated TDP of 45 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
64-bit (x86-64)SSE4.1SSE4.2SSESSE2SSE3SSSE3MMX
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

0 supported
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware Shield

Virtualization

0 supported
Not recorded
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTIOMMUSecond-Level Address Translation

OS Compatibility

0 supported
Not supported
Windows 11 eligible

The Intel Xeon L3426 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 L3426: Windows 11 eligible.

Physical & Manufacturing

Launch Price
$284

The Intel Xeon L3426 is manufactured by Intel. It launched at a price of $284.

Naming & Aliases

Display Name
Intel® Xeon™ L3426
Normalized Name
Intel® Xeon™ L3426
Product line brand
Xeon

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon L3426 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 49% of the specifications it tracks for the Intel Xeon L3426. 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: 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

How many cores and threads does the Intel Xeon L3426 have?

The Intel Xeon L3426 has 4 cores and 8 threads.

What socket does the Intel Xeon L3426 use?

The Intel Xeon L3426 uses the FCLGA1156 socket.

What memory does the Intel Xeon L3426 support?

The Intel Xeon L3426 supports DDR3.

How fast does the Intel Xeon L3426 run?

The Intel Xeon L3426 can boost up to 3.2 GHz, with a 1.87 GHz base clock.

What is the TDP of the Intel Xeon L3426?

The Intel Xeon L3426 has a TDP of 45 W.

How does the Intel Xeon L3426 perform?

In the Feex normalized performance dataset, the Intel Xeon L3426 scores 2,742 multi-core and 1,259 single-core.

What is the Intel Xeon L3426 best for?

Based on its specifications, the Intel Xeon L3426 is well suited for Server / professional infrastructure.

How much cache does the Intel Xeon L3426 have?

The Intel Xeon L3426 has 256 KB of L1 cache, 1024 KB of L2 cache and 8 MB of L3 cache.

How does the Intel Xeon L3426 compare with the Intel Core i5-12400?

The Intel Xeon L3426 has a computed performance index of 23, which is 77% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.