Xeon E3-1276 v3

Details and Benchmarks for Intel Xeon E3-1276 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 E3-1276 v3 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,324 Rank: 599
Rank Name Score Visual
595 EPYC 7302 5,329
+0.1%
596 Core i5-8600T 5,326
+0%
597 Ryzen 5 1600 5,325
+0%
598 Core i7-4790S 5,325
+0%
599 Xeon E3-1276 v3 5,324
600 Xeon E3-1240 v3 5,321
-0.1%
601 Core i3-1115G4E 5,320
-0.1%
602 Xeon D-2146NT 5,318
-0.1%
603 Core i5-1135G7 5,318
-0.1%
604 Core i5-1038NG7 5,318
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1276 v3 based on multi-threaded benchmark results.

4,885 Rank: 746
Rank Name Score Visual
742 Core i7-970 4,888
+0.1%
743 Xeon E5-2650L v2 4,887
+0%
744 Core i7-6820HK 4,886
+0%
745 Xeon E3-1230 V2 4,886
+0%
746 Xeon E3-1276 v3 4,885
747 Core i5-9400 4,884
+-0%
748 Core i5-10200H 4,884
+-0%
749 Xeon Silver 4210 4,883
+-0%
750 Core i3-7100 4,882
-0.1%
751 Ryzen 5 1500X 4,882
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon E3-1276 v3 based on single-threaded benchmark results.

5,616 Rank: 477
Rank Name Score Visual
473 Core i7-4790T 5,624
+0.1%
474 Xeon E5-2696 v3 5,624
+0.1%
475 Xeon Gold 6254 5,622
+0.1%
476 Ryzen 5 PRO 1600 5,622
+0.1%
477 Xeon E3-1276 v3 5,616
478 Ryzen 5 PRO 4650GE 5,614
+-0%
479 Core i5-7440EQ 5,611
-0.1%
480 Xeon W-3223 5,606
-0.2%
481 Core i7-6850K 5,605
-0.2%
482 Core i7-1185G7 5,603
-0.2%

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 E3-1276 v3 based on integer math, floating point math, and prime number computation benchmarks.

4,708 Rank: 645
Rank Name Score Visual
641 Xeon E3-1270 v5 4,710
+0%
642 Xeon E5-1620 v4 4,710
+0%
643 Xeon E3-1280 v5 4,709
+0%
644 Xeon E5-2623 v4 4,709
+0%
645 Xeon E3-1276 v3 4,708
646 Ryzen 5 3400G 4,707
+-0%
647 Xeon E3-1275 v5 4,707
+-0%
648 Xeon E3-1260L v5 4,707
+-0%
649 Xeon E3-1240 v5 4,707
+-0%
650 Xeon W3680 4,707
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1276 v3 based on data encryption, data compression, and string sorting benchmarks.

4,715 Rank: 655
Rank Name Score Visual
651 Core i5-10200H 4,716
+0%
652 Xeon E3-1230 v6 4,715
+0%
653 Xeon D-1537 4,715
+0%
654 Core i7-6700 4,715
+0%
655 Xeon E3-1276 v3 4,715
656 Xeon E5-2430 v2 4,714
+-0%
657 Core i7-970 4,713
+-0%
658 Xeon W3670 4,712
-0.1%
659 Ryzen Embedded V1605B 4,710
-0.1%
660 Xeon D-1539 4,710
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1276 v3 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,742 Rank: 662
Rank Name Score Visual
658 Core i5-1145G7 4,744
+0%
659 Xeon E-2104G 4,743
+0%
660 Core i5-6600K 4,743
+0%
661 Core i5-10400H 4,743
+0%
662 Xeon E3-1276 v3 4,742
663 Core i5-10300H 4,742
+0%
664 Core i3-9100 4,741
+-0%
665 Xeon E5-1620 v4 4,741
+-0%
666 Xeon E3-1535M V5 4,740
+-0%
667 Core i7-6820HK 4,740
+-0%

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Xeon E3-1276 v3 Details

The Intel Xeon E3-1276 v3 stands out as a capable mid-tier processor for professional workstations and demanding business applications, offering a strong balance of single-core performance and multi-threaded efficiency. Released in 2014, it is now over a decade old, making it a legacy part in today's computing landscape. Still, its performance remains competitive in specific workloads, particularly in environments where cost-effective, reliable computing is prioritized over cutting-edge performance. Built on Intel's 22 nm process and based on the Haswell microarchitecture, the E3-1276 v3 features four physical cores with Hyper-Threading support, enabling eight threads to be processed simultaneously. It operates at a base clock of 3.6 GHz and can boost up to 4.0 GHz, delivering solid responsiveness for general productivity and virtualization tasks. The processor is designed for the FCLGA1150 socket and has a TDP of 84 W, indicating moderate power consumption for its class.

In terms of memory, the Xeon E3-1276 v3 supports up to 32 GB of DDR3 and DDR3L memory running at 1333 MHz or 1600 MHz, with dual-channel support and a maximum bandwidth of 25.6 GB/s. It also includes ECC memory support, a critical feature for enterprise and server environments where data integrity is essential. Integrated into the chip is Intel's HD Graphics P4600, which operates at a base frequency of 350 MHz and can boost up to 1250 MHz, supporting up to three displays and providing basic graphics capabilities for office use and light multimedia tasks. The processor supports PCIe 3.0 with up to 16 lanes, allowing for expansion with high-speed storage and graphics cards.

The Xeon E3-1276 v3's performance is reflected in its benchmark results. It achieves a single-core score of 5616, ranking it #477 of 2060, placing it ahead of several modern consumer processors like the Core i5-7440EQ and the Xeon W-3223. Its multicore score of 4885 ranks it #746 of 2060, positioning it among high-end desktop CPUs from its era, such as the Core i7-6820HK and Xeon E5-2650L v2. The overall score of 5324 lands it at #599 of 2060, indicating that while it is no longer competitive with today's top-tier CPUs, it still holds its own in multi-threaded workloads. Notably, the single-core performance is its strongest attribute, outperforming many newer processors in this category.

The processor supports a wide range of Intel technologies, including AES-NI, AVX2, Hyper-Threading, and Intel vPro, making it suitable for virtualization, encryption, and secure business environments. Despite its age, the Xeon E3-1276 v3 remains a viable option for legacy systems, small business servers, and workstations requiring reliable performance without the need for high-end graphics or massive multi-core capabilities. As of March 2026, it serves as a testament to Intel's engineering from the early 2010s, offering a durable and efficient solution for users who value stability and proven performance over raw speed.
Frequently Compared

Intel Core i9-7980XE 8 views

AMD Ryzen 9 3900X 4 views

AMD Ryzen Threadripper 1920X 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 4116 2 views

Intel Xeon Silver 4109T 2 views

Intel Xeon D-1531 2 views

Intel Xeon Silver 4214 1 view

Intel Xeon E3-1276 v3

Main Specifications

Designer: Intel
Name: Xeon E3-1276 v3
Model Number: E3-1276V3
Cores: 4
Threads: 8
Base Frequency: 3600 MHz
Socket: FCLGA1150
Max CPUs: 1
TDP: 84 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: HD Graphics P4600
GPU Designer: Intel
GPU Max Frequency: 1250 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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