Xeon E3-1276 v3 Benchmarks & Performance Report

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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%

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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%

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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%

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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%

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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%

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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.