Core i7-3820 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 Core i7-3820 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,889 Rank: 964

Rank	Name	Score	Visual
960	Xeon W3690	4,892	+0.1%
961	Xeon E5-2650 v2	4,891	+0%
962	Core i5-5287U	4,890	+0%
963	Pentium Gold G5400T	4,889	+0%
964	Core i7-3820	4,889
965	Athlon PRO 200GE	4,887	+-0%
966	Core i3-7167U	4,887	+-0%
967	Core i5-3470	4,886	-0.1%
968	Core i5-4440	4,882	-0.1%
969	Core i5-7Y57	4,881	-0.2%

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Multicore Score

Multicore performance score for Core i7-3820 based on multi-threaded benchmark results.

4,832 Rank: 805

Rank	Name	Score	Visual
801	Ryzen 3 2200G	4,840	+0.2%
802	Core i5-10300H	4,838	+0.1%
803	Ryzen 5 2400G	4,837	+0.1%
804	Xeon E3-1230 V5	4,832	+0%
805	Core i7-3820	4,832
806	Ryzen 3 1200	4,832	+0%
807	Core i5-8300H	4,830	+-0%
808	Core i7-4980HQ	4,830	+-0%
809	Xeon Silver 4112	4,829	-0.1%
810	Xeon E3-1505M v5	4,828	-0.1%

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Singlecore Score

Single-core performance score for Core i7-3820 based on single-threaded benchmark results.

4,927 Rank: 990

Rank	Name	Score	Visual
986	Core i7-3770S	4,934	+0.1%
987	Ryzen Threadripper 3990X	4,933	+0.1%
988	Core i7-8665U	4,932	+0.1%
989	Ryzen 5 2500U	4,931	+0.1%
990	Core i7-3820	4,927
991	Core i7-3720QM	4,926	+-0%
992	Xeon E5-2650 v4	4,923	-0.1%
993	Pentium G3450	4,922	-0.1%
994	Core i5-3360M	4,921	-0.1%
995	Pentium Gold G6405	4,920	-0.1%

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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 Core i7-3820 based on integer math, floating point math, and prime number computation benchmarks.

4,647 Rank: 839

Rank	Name	Score	Visual
835	Core i7-4720HQ	4,648	+0%
836	Core i7-3820QM	4,648	+0%
837	Xeon D-1521	4,647	+0%
838	Ryzen 3 2200G	4,647	+0%
839	Core i7-3820	4,647
840	Core i5-4570	4,646	+-0%
841	Core i5-8265U	4,646	+-0%
842	Xeon E3-1220 V2	4,646	+-0%
843	Xeon D-1520	4,645	+-0%
844	Core i5-7600T	4,645	+-0%

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Data Processing

Aggregated score for Core i7-3820 based on data encryption, data compression, and string sorting benchmarks.

4,673 Rank: 745

Rank	Name	Score	Visual
741	Core i7-3770S	4,675	+0%
742	Xeon E3-1230 V2	4,675	+0%
743	Ryzen 3 4300U	4,674	+0%
744	Core i7-7700HQ	4,673	+0%
745	Core i7-3820	4,673
746	Xeon E5-2623 v4	4,672	+-0%
747	Xeon E-2224G	4,672	+-0%
748	Ryzen 3 PRO 1300	4,672	+-0%
749	Core i7-2700K	4,672	+-0%
750	Xeon X5650	4,672	+-0%

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Physics & Compute

Aggregated score for Core i7-3820 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,676 Rank: 783

Rank	Name	Score	Visual
779	Core i5-7300HQ	4,678	+0%
780	Ryzen 3 2300X	4,678	+0%
781	Ryzen 3 7320U	4,678	+0%
782	Core i5-4590S	4,676	+0%
783	Core i7-3820	4,676
784	Core i7-4722HQ	4,676	+0%
785	Ryzen 5 PRO 3400G	4,675	+-0%
786	Xeon D-1622	4,675	+-0%
787	Core i7-8665U	4,675	+-0%
788	Core i5-4570	4,674	+-0%

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Core i7-3820 Details

Ranking #963 of 2060 in overall performance, the Intel Core i7-3820 sits in the mid-tier of desktop processors as of early 2026. Though no longer cutting-edge, it remains a capable quad-core part with hyper-threading, making it relevant for legacy workloads and systems where power efficiency is less critical. Released over a decade ago, the i7-3820 is built on Intel’s 32 nm process and features the Sandy Bridge-E architecture, designed for high-end desktops and workstations of its time. Its FCLGA1366 socket and 130 W TDP reflect the power-hungry nature of early 2010s high-performance CPUs, limiting its appeal in modern energy-conscious builds.

The processor operates at a base frequency of 3.6 GHz and can boost to 3.8 GHz, with support for up to 64 GB of DDR3 memory across four channels, achieving a maximum memory bandwidth of 51.2 GB/s. It supports PCIe 2.0 with up to 40 lanes, offering flexibility for multi-GPU and storage configurations. The i7-3820 includes Intel’s integrated HD Graphics P4000, which runs at a base frequency of 650 MHz and can reach 1.25 GHz in burst mode, supporting up to three displays. While not suitable for gaming, it provides basic visual output for office and multimedia tasks.

In terms of performance, the Core i7-3820 scores 4889 in the overall Passmark benchmark, with a single-core score of 4927 and a multicore score of 4832. These figures place it behind modern CPUs but ahead of several contemporary low-power and mobile processors. Its single-core performance ranks higher than its multicore score, indicating stronger per-thread efficiency, which makes it better suited for applications that rely on thread optimization rather than raw parallel processing. The processor is outperformed by both current-generation Intel and AMD parts, with even budget chips like the Ryzen 5 2400G scoring slightly higher in multicore tests.

The i7-3820 supports a wide array of Intel technologies, including AES-NI, AVX2, Hyper-Threading, and Intel vPro, making it suitable for enterprise environments requiring remote management and virtualization. It also supports ECC memory, though this feature is limited to server-grade systems. Despite its age, the CPU’s robust feature set and strong single-thread performance ensure it still holds value in niche scenarios such as legacy software compatibility, small-scale server deployments, or budget builds where cost is a primary concern.

As of March 2026, the Core i7-3820 is best suited for users who prioritize stability and compatibility over modern efficiency and performance. It remains a viable option for non-demanding workstations, retro gaming rigs, or systems where upgrading the motherboard and CPU is not feasible. However, for new builds, alternatives from AMD or Intel’s more recent generations offer significantly better performance, power efficiency, and feature integration.