Core i7-4820K

Details and Benchmarks for Intel Core i7-4820K

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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 i7-4820K based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,132 Rank: 766
Rank Name Score Visual
762 Core i7-4960HQ 5,138
+0.1%
763 Core i3-8300 5,136
+0.1%
764 Ryzen 3 2300X 5,134
+0%
765 Core i7-3970X 5,132
+0%
766 Core i7-4820K 5,132
767 Xeon E3-1220 v6 5,131
+-0%
768 Core i5-4590 5,131
+-0%
769 Core i5-7260U 5,129
-0.1%
770 Core i7-8750H 5,127
-0.1%
771 Core i5-8259U 5,126
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i7-4820K based on multi-threaded benchmark results.

4,951 Rank: 675
Rank Name Score Visual
671 Core i5-6350HQ 4,953
+0%
672 Ryzen 3 3100 4,953
+0%
673 Xeon E3-1245 v3 4,952
+0%
674 Core i3-6320 4,951
+0%
675 Core i7-4820K 4,951
676 Core i7-4940MX 4,951
+0%
677 Xeon Silver 4214 4,950
+-0%
678 Xeon E3-1585 v5 4,949
+-0%
679 Xeon E5-2670 v2 4,949
+-0%
680 Ryzen 5 4500U 4,948
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Core i7-4820K based on single-threaded benchmark results.

5,253 Rank: 767
Rank Name Score Visual
763 Pentium G4400 5,258
+0.1%
764 Core i7-5700HQ 5,258
+0.1%
765 Core i7-3960X 5,255
+0%
766 Pentium Gold G5420 5,254
+0%
767 Core i7-4820K 5,253
768 Core i5-6287U 5,250
-0.1%
769 Xeon W-2123 5,247
-0.1%
770 Ryzen 5 PRO 3400GE 5,244
-0.2%
771 Core i3-8100T 5,242
-0.2%
772 Pentium G4560 5,241
-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 Core i7-4820K based on integer math, floating point math, and prime number computation benchmarks.

4,676 Rank: 737
Rank Name Score Visual
733 Xeon E3-1505M v5 4,677
+0%
734 Pentium Gold G7400 4,677
+0%
735 Core i7-7920HQ 4,676
+0%
736 Core i5-7600K 4,676
+0%
737 Core i7-4820K 4,676
738 Ryzen 5 PRO 3400GE 4,675
+-0%
739 Core i7-6820HK 4,675
+-0%
740 Core i3-8300 4,675
+-0%
741 Ryzen 3 PRO 1300 4,675
+-0%
742 Xeon E5-1620 v2 4,675
+-0%

View full ranking →

Data Processing

Aggregated score for Core i7-4820K based on data encryption, data compression, and string sorting benchmarks.

4,689 Rank: 704
Rank Name Score Visual
700 Core i5-8300H 4,689
+0%
701 Xeon E3-1535M V5 4,689
+0%
702 Core i7-7920HQ 4,689
+0%
703 Core i5-8500T 4,689
+0%
704 Core i7-4820K 4,689
705 Core i7-4790S 4,688
+-0%
706 Xeon E5-1620 v2 4,688
+-0%
707 Xeon E3-1285 v4 4,688
+-0%
708 Xeon E3-1290 v2 4,688
+-0%
709 Xeon E5-1620 v4 4,687
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i7-4820K based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,687 Rank: 761
Rank Name Score Visual
757 Core i7-4910MQ 4,688
+0%
758 Xeon W-2102 4,687
+0%
759 Core i5-6350HQ 4,687
+0%
760 Core i5-6600T 4,687
+0%
761 Core i7-4820K 4,687
762 Xeon E5-2430 v2 4,687
+0%
763 Core i5-7500T 4,686
+-0%
764 Core i5-6400 4,686
+-0%
765 Core i5-4670 4,686
+-0%
766 Ryzen 5 PRO 1500 4,685
+-0%

View full ranking →

Core i7-4820K Details

Built on Intel's Ivy Bridge-E architecture at a 22 nm process, the Core i7-4820K is a desktop processor that was launched in September 2013. While now considered a legacy chip by modern standards, it remains notable for its high performance at the time and its unlocked multiplier, which made it a favorite among overclockers. As of March 2026, the processor is over a decade old, and its relevance has diminished in the face of newer, more efficient designs from both Intel and AMD. However, it still holds a place in enthusiast and budget builds where its strong single-core performance and multi-threading capabilities can be leveraged effectively.

The i7-4820K features four physical cores with Hyper-Threading, enabling eight threads to be processed simultaneously. It operates at a base frequency of 3.7 GHz and can boost up to 3.9 GHz under load, supported by a 130 W TDP that necessitates adequate cooling. The chip is manufactured using 1.86 billion transistors and features 10 MB of L3 cache, which is split across the cores to reduce latency and improve data access. It supports quad-channel DDR3 memory at speeds up to 1866 MHz, with a maximum capacity of 64 GB and a peak memory bandwidth of 59.7 GB/s. Connectivity is handled via PCIe 3.0, with up to 40 lanes available, allowing for robust expansion with multiple high-speed devices.

Despite its age, the i7-4820K offers a compelling balance of performance and flexibility. It supports a wide range of advanced technologies, including AVX, AVX2, AES-NI, and Intel's virtualization features such as VT-x and VT-d. These capabilities make it suitable for demanding applications such as video editing, 3D rendering, and virtualization, although its power consumption and heat output are significant drawbacks in modern systems. The processor lacks integrated graphics, requiring a discrete GPU for any visual output, which limits its utility in low-power or compact systems.

In benchmark testing, the Core i7-4820K achieves an overall score of 5132, ranking it #765 among 2060 processors. Its single-core performance scores 5253, placing it at #767, while its multicore performance reaches 4951, ranking #674. These results highlight a strong single-threaded performance, which is competitive with some modern mid-range CPUs, but its multicore performance is significantly outpaced by today's leading processors. The i7-4820K outperforms several recent Intel and AMD chips in the single-core category, including the Core i7-5700HQ and the Pentium Gold G5420, but falls behind the top-tier CPUs in multi-threaded workloads.

Given its age and high TDP, the Core i7-4820K is best suited for legacy systems or enthusiasts who value overclocking potential and compatibility with older hardware. While it is no longer competitive in mainstream or high-end computing, it remains a viable option for users who prioritize raw single-core performance and have the thermal and power infrastructure to support it. For new builds, modern processors offer superior efficiency, performance, and features, but the i7-4820K continues to serve as a reliable, albeit dated, option in the right context.
Frequently Compared

Intel Xeon E5-2667 v4 2 views

AMD Ryzen Threadripper 1950X 2 views

AMD Ryzen 7 PRO 2700 2 views

AMD Ryzen 7 2700 2 views

AMD Ryzen 3 PRO 2200GE 1 view

AMD Ryzen 9 PRO 3900 1 view

AMD Ryzen 5 PRO 3500U 1 view

Intel Xeon Silver 4210 1 view

Intel Xeon Silver 4112 1 view

Intel Xeon E5-2673 v4 1 view

Intel Core i7-4820K

Main Specifications

Designer: Intel
Name: Core i7-4820K
Model Number: i7-4820K
Cores: 4
Threads: 8
Base Frequency: 3700 MHz
Clock Multiplier: 37x (unlocked)
Core Name: Ivy Bridge-E
Socket: FCLGA1155
Package: FC-LGA10
Target Segment: Desktop
Max CPUs: 1
TDP: 130 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 9.537 MiB

Memory Specifications

Supported Memory Type: DDR3 1333/1600/1866
Memory Channels: 4
Maximum Memory: 0 GB
Maximum Bandwidth: 59.7 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 40
PCIe Configuration: up to 1x16, 2x8, 1x8 & 2x4

Integrated Graphics

GPU: HD Graphics 2500
GPU Designer: Intel
GPU Max Frequency: 1150 MHz

Physical Specifications

Process: 22 nm
Die Area: 257 mm²
Manufacturer: Intel
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 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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