Core i3-8145U

Details and Benchmarks for Intel Core i3-8145U

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Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

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 i3-8145U based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,914 Rank: 940
Rank Name Score Visual
936 Xeon E5-2648L v4 4,919
+0.1%
937 Core i5-4430 4,917
+0.1%
938 Xeon E5-2630L v4 4,916
+0%
939 Core i5-3475S 4,915
+0%
940 Core i3-8145U 4,914
941 Core i5-4570T 4,914
+0%
942 Core i7-6498DU 4,913
+-0%
943 Core m7-6Y75 4,912
+-0%
944 Core i5-5257U 4,908
-0.1%
945 Core i5-6300HQ 4,907
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i3-8145U based on multi-threaded benchmark results.

4,509 Rank: 1209
Rank Name Score Visual
1205 Xeon E5520 4,511
+0%
1206 Core i5-3570S 4,511
+0%
1207 A10-5800B 4,510
+0%
1208 Pentium Gold G6405 4,510
+0%
1209 Core i3-8145U 4,509
1210 Core i5-3380M 4,509
+0%
1211 Core i5-3360M 4,509
+0%
1212 Core i3-6100TE 4,508
+-0%
1213 Phenom II X4 910e 4,508
+-0%
1214 Core i5-4330M 4,507
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Core i3-8145U based on single-threaded benchmark results.

5,184 Rank: 820
Rank Name Score Visual
816 Xeon E3-1270 v3 5,186
+0%
817 Xeon Platinum 8270 5,185
+0%
818 Core i5-7400T 5,184
+0%
819 EPYC 7551P 5,184
+0%
820 Core i3-8145U 5,184
821 Xeon E5-2667 v4 5,181
-0.1%
822 Core i7-4710MQ 5,181
-0.1%
823 Xeon E5-2687W v2 5,180
-0.1%
824 Core i5-7300HQ 5,179
-0.1%
825 Xeon Silver 4215 5,178
-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 i3-8145U based on integer math, floating point math, and prime number computation benchmarks.

4,565 Rank: 1094
Rank Name Score Visual
1090 Xeon X3430 4,566
+0%
1091 A8-5500 4,566
+0%
1092 Pentium Gold G5500T 4,565
+0%
1093 Core i3-6098P 4,565
+0%
1094 Core i3-8145U 4,565
1095 Core i3-4170 4,565
+0%
1096 Core i3-4340 4,565
+0%
1097 Phenom II X6 1045T 4,565
+0%
1098 Core i7-7500U 4,564
+-0%
1099 Xeon L5520 4,564
+-0%

View full ranking →

Data Processing

Aggregated score for Core i3-8145U based on data encryption, data compression, and string sorting benchmarks.

4,542 Rank: 1092
Rank Name Score Visual
1088 Xeon X5460 4,543
+0%
1089 Athlon X4 840 4,543
+0%
1090 Pentium Gold G5420T 4,542
+0%
1091 Core i5-7267U 4,542
+0%
1092 Core i3-8145U 4,542
1093 Core i3-4330 4,542
+0%
1094 Phenom II X4 850 4,542
+0%
1095 FX-4320 4,542
+0%
1096 A10 PRO-7800B 4,542
+0%
1097 Core i7-860S 4,541
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i3-8145U based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,582 Rank: 1010
Rank Name Score Visual
1006 Core i7-7600U 4,583
+0%
1007 Core i7-7500U 4,583
+0%
1008 Core i7-2710QE 4,583
+0%
1009 Core i7-2670QM 4,583
+0%
1010 Core i3-8145U 4,582
1011 Xeon W3570 4,582
+0%
1012 Xeon W3565 4,582
+0%
1013 Core i5-2300 4,582
+0%
1014 Xeon E5640 4,582
+0%
1015 Core i7-930 4,582
+0%

View full ranking →

Core i3-8145U Details

As of March 2026, the Intel Core i3-8145U remains a niche mobile processor, designed for thin and light laptops where power efficiency and integrated graphics are prioritized over raw performance. Launched in October 2018, it is now over seven years old, placing it firmly in the legacy category, though its 14 nm process and Whiskey Lake-U architecture were competitive at the time of release. Despite its age, the i3-8145U holds its own in basic productivity and multimedia tasks, thanks to its 2.1 GHz base frequency and a turbo boost up to 3.9 GHz, which enables responsive performance under light workloads.

The processor features a dual-core, four-thread design enabled by Intel's Hyper-Threading technology, allowing it to handle multitasking more effectively than its core count might suggest. It is built on a 14 nm process and operates at a low 15 W TDP, making it ideal for passively cooled devices. The chip integrates Intel UHD Graphics 620, capable of driving up to three displays at a maximum frequency of 1.0 GHz, and supports dual-channel DDR4-2400 or LPDDR3-2133 memory, with a maximum capacity of 32 GB. Its 3.815 MiB L3 cache and 0.244 MiB L2 cache provide adequate data buffering for everyday applications.

In benchmark testing, the Core i3-8145U achieves a Passmark Overall Score of 4914, placing it at #940 out of 2060 processors. Its single-core performance scores 5184, ranking #818, which reflects its ability to handle modern single-threaded applications with relative ease. However, its multicore score of 4509 places it at #1209, indicating that its two cores are a limiting factor in heavily parallel workloads. Compared to modern competitors, it trails significantly behind high-end CPUs like the Ryzen 9 9950X3D or Core Ultra 9 285K, but it holds a narrow lead over several older mobile and desktop processors such as the Core i5-7300HQ and the Athlon Gold 3150U.

The i3-8145U supports a wide range of instruction sets, including AVX2, AES-NI, and Intel Virtualization Technology (VT-x), making it suitable for virtualization, encryption, and media processing. Its locked multiplier restricts overclocking, but the low TDP and integrated graphics make it a practical choice for entry-level business laptops and educational devices. While it is no longer suitable for gaming or content creation, it remains a viable option for web browsing, office applications, and light media consumption in systems where battery life and thermal constraints are critical.

In summary, the Core i3-8145U is a legacy mobile processor with modest performance by today's standards. Its low power consumption and integrated GPU make it well-suited for ultra-thin notebooks and budget laptops, particularly in environments where long battery life and quiet operation are more important than peak performance. As of 2026, it serves as a reliable but outdated option in the low-power computing segment, best positioned for basic productivity use rather than demanding applications.
Frequently Compared

AMD Ryzen 5 7600 10 views

AMD FX-4350 9 views

AMD Ryzen 7 8700G 8 views

AMD Ryzen 7 7730U 7 views

AMD A8-7650K 7 views

Intel Pentium P6200 7 views

AMD Ryzen 3 3250U 6 views

Intel Atom N2800 6 views

Intel Pentium N6415 6 views

Intel Pentium 4 3.00GHz 5 views

Intel Core i3-8145U

Main Specifications

Designer: Intel
Name: Core i3-8145U
Model Number: i3-8145U
Cores: 2
Threads: 4
Base Frequency: 2100 MHz
Clock Multiplier: 21x (locked)
Core Name: Whiskey Lake-U
Socket: FCBGA1528
Package: FC-BGA1440
Target Segment: Mobile
Max CPUs: 1
TDP: 15 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 3.815 MiB

Memory Specifications

Supported Memory Type: DDR4-2400, LPDDR3-2133
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 37.5 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 16
PCIe Configuration: 1x4, 2x2, 1x2+2x1 and 4x1

Integrated Graphics

GPU: UHD Graphics 620
GPU Designer: Intel
GPU Max Frequency: 1000 MHz

Physical Specifications

Process: 14 nm
Die Area: 123 mm²
Manufacturer: Intel
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 BMI1 BMI2 FMA3 AES CLMUL F16C x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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