Xeon E3-1271 v3

Details and Benchmarks for Intel Xeon E3-1271 v3

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Xeon E3-1271 v3 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,934 Rank: 921
Rank Name Score Visual
917 Core i7-7Y75 4,938
+0.1%
918 Xeon D-1577 4,937
+0.1%
919 Core i5-2550K 4,937
+0.1%
920 Xeon Silver 4112 4,934
+0%
921 Xeon E3-1271 v3 4,934
922 Athlon 240GE 4,933
+-0%
923 Ryzen 7 PRO 2700U 4,933
+-0%
924 Core i3-8121U 4,932
+-0%
925 Core i3-6098P 4,931
-0.1%
926 Xeon E5-1607 v4 4,928
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1271 v3 based on multi-threaded benchmark results.

4,795 Rank: 847
Rank Name Score Visual
843 Core i7-6700TE 4,800
+0.1%
844 Core i7-8665U 4,799
+0.1%
845 Core i7 965 4,796
+0%
846 Atom C3955 4,795
+0%
847 Xeon E3-1271 v3 4,795
848 Core i7-4702HQ 4,795
+0%
849 Intel Core i3-390M 4,793
+-0%
850 FX-8370E 4,793
+-0%
851 Pentium Gold G4560 4,792
-0.1%
852 Core i3-7350K 4,792
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon E3-1271 v3 based on single-threaded benchmark results.

5,027 Rank: 926
Rank Name Score Visual
922 Xeon D-2123IT 5,034
+0.1%
923 EPYC 7251 5,034
+0.1%
924 Pentium G3440 5,034
+0.1%
925 Ryzen 7 PRO 2700U 5,029
+0%
926 Xeon E3-1271 v3 5,027
927 Core i7-4800MQ 5,027
+0%
928 Core i3-9100TE 5,026
+-0%
929 Core i5-3470 5,023
-0.1%
930 Core i3-4130 5,023
-0.1%
931 Core i7-3840QM 5,021
-0.1%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Xeon E3-1271 v3 based on integer math, floating point math, and prime number computation benchmarks.

4,703 Rank: 663
Rank Name Score Visual
659 Core i5-9400H 4,704
+0%
660 Core i5-8279U 4,704
+0%
661 Ryzen 3 5300U 4,704
+0%
662 Ryzen 5 PRO 3400G 4,703
+0%
663 Xeon E3-1271 v3 4,703
664 Xeon E5-2430 v2 4,703
+0%
665 Core i7-980X 4,703
+0%
666 Xeon E3-1230 v6 4,702
+-0%
667 Xeon X5680 4,702
+-0%
668 Core i7-6700 4,701
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1271 v3 based on data encryption, data compression, and string sorting benchmarks.

4,707 Rank: 666
Rank Name Score Visual
662 Core i5-9400T 4,709
+0%
663 Xeon E3-1535M v6 4,709
+0%
664 Xeon E3-1245 v5 4,709
+0%
665 Xeon E3-1230 V5 4,708
+0%
666 Xeon E3-1271 v3 4,707
667 Xeon E5-2608L v4 4,705
+-0%
668 Ryzen 5 PRO 2500U 4,704
-0.1%
669 Core i7-8559U 4,703
-0.1%
670 Ryzen 5 2500U 4,703
-0.1%
671 Xeon E5-2630L v2 4,703
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1271 v3 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,733 Rank: 677
Rank Name Score Visual
673 Core i7-4750HQ 4,737
+0.1%
674 Xeon E5-2609 v4 4,736
+0.1%
675 Core i7-8706G 4,735
+0%
676 Core i7-1065G7 4,734
+0%
677 Xeon E3-1271 v3 4,733
678 Xeon E5-2650L v2 4,733
+0%
679 Xeon E3-1225 v5 4,732
+-0%
680 Xeon D-2123IT 4,732
+-0%
681 Core i5-9400H 4,731
+-0%
682 Core i7-7700T 4,731
+-0%

View full ranking →

Xeon E3-1271 v3 Details

As of March 2026, the Intel Xeon E3-1271 v3 remains a capable server-grade processor, though it is now considered a legacy part due to its age. Released in 2014 as part of Intel's Haswell generation, this CPU was designed for entry-level workstations and small business servers, offering a blend of performance and integrated features suitable for professional workloads. Built on a 22 nm process and based on the Haswell microarchitecture, the E3-1271 v3 delivers a solid balance of single-core efficiency and multi-threaded capability, making it relevant for older systems requiring reliable performance without the need for high-end scalability.

The processor features four cores and eight threads, enabled by Intel's Hyper-Threading technology, which allows it to handle multiple tasks simultaneously. It runs at a base frequency of 3.6 GHz, with a turbo boost up to 4.0 GHz, ensuring responsiveness under varying loads. With a TDP of 80 W, it strikes a reasonable power-efficiency trade-off for a server-class chip, especially when paired with a compatible FCLGA1150 motherboard. It supports dual-channel DDR3 and DDR3L memory at speeds up to 1600 MHz, with a maximum capacity of 32 GB and a peak memory bandwidth of 25.6 GB/s. The CPU also includes support for PCIe 3.0, offering flexible expansion with up to 16 lanes, and integrates Intel’s vPro technology, which enhances manageability and security for enterprise environments.

While the Xeon E3-1271 v3 lacks integrated graphics, its performance is well-documented across various benchmarks. It achieves a Passmark Overall Score of 4934, placing it at rank #920 out of 2060 processors, with a Singlecore Score of 5027 (#926) and a Multicore Score of 4795 (#846). These results indicate that it holds its own in single-threaded tasks but lags behind modern high-end CPUs in multi-threaded performance. Compared to its immediate peers, it trails only slightly behind the Core i7-8665U and Core i7-8559U in multicore workloads, yet it outperforms many mainstream desktop CPUs like the Pentium Gold G4560 and FX-8370E. Its single-core performance, while strong for its era, is now overshadowed by modern processors such as the Ryzen 7 PRO 2700U and Core i5-8279U.

Despite being over a decade old, the Xeon E3-1271 v3 still serves as a viable option for legacy systems, light virtualization, or small-scale server applications where cost-effective performance is key. Its support for ECC memory, virtualization technologies (VT-x, VT-d), and Intel vPro features make it a practical choice for environments where data integrity and remote management are priorities. However, for modern applications demanding high throughput or advanced instruction sets like AVX-512, it is clearly outpaced by contemporary designs. In today's landscape, it stands as a testament to Intel's mid-tier server performance of the early 2010s, offering reliable, albeit dated, computing power for niche use cases.
Frequently Compared

Intel Atom Z520 4 views

AMD Ryzen Threadripper 2950X 4 views

AMD Ryzen 3 PRO 2200GE 2 views

AMD Ryzen 9 PRO 3900 2 views

AMD Ryzen 5 PRO 3500U 2 views

Intel Xeon Silver 4214 2 views

Intel Xeon Silver 4116T 2 views

Intel Core i7-6567U 2 views

Intel Core i7-7700HQ 1 view

Intel Xeon E3-1271 v3

Main Specifications

Designer: Intel
Name: Xeon E3-1271 v3
Model Number: E3-1271V3
Cores: 4
Threads: 8
Base Frequency: 3600 MHz
Socket: FCLGA1150
Max CPUs: 1
TDP: 80 W

Cache Specifications

Memory Specifications

Supported Memory Type: DDR3 and DDR3L 1333/1600 at 1.5V
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8, 1x8/2x4

Integrated Graphics

GPU: None
GPU Designer: Intel
GPU Max Frequency: 1150 MHz

Physical Specifications

Process: 22 nm
Word Size: 64-bit

CPU Features

SSE4.1 SSE4.2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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