Core i5-3427U

Details and Benchmarks for Intel Core i5-3427U

Sysbuilds Alpha Stage!

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 i5-3427U based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,540 Rank: 1246
Rank Name Score Visual
1242 Athlon 200GE 4,543
+0.1%
1243 Core i3-2120 4,541
+0%
1244 Core i3-5157U 4,541
+0%
1245 FX-9830P 4,540
+0%
1246 Core i5-3427U 4,540
1247 Core M-5Y71 4,539
+-0%
1248 Pentium G3450T 4,537
-0.1%
1249 Core M 5Y10c 4,536
-0.1%
1250 Core i7-2710QE 4,536
-0.1%
1251 Xeon E3-1265L v2 4,535
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i5-3427U based on multi-threaded benchmark results.

4,457 Rank: 1311
Rank Name Score Visual
1307 PRO A10-9700E 4,458
+0%
1308 Core M 5Y70 4,457
+0%
1309 Core i5-5300U 4,457
+0%
1310 Core i7-4500U 4,457
+0%
1311 Core i5-3427U 4,457
1312 Celeron B840 4,456
+-0%
1313 Athlon II X3 460 4,456
+-0%
1314 Core i5-5250U 4,455
+-0%
1315 Xeon X3220 4,455
+-0%
1316 Core i3-3225 4,453
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Core i5-3427U based on single-threaded benchmark results.

4,596 Rank: 1218
Rank Name Score Visual
1214 Core i3-7100U 4,607
+0.2%
1215 FX-9830P 4,606
+0.2%
1216 Celeron G3900T 4,599
+0.1%
1217 Core i7-3517U 4,597
+0%
1218 Core i5-3427U 4,596
1219 PRO A6-9500 4,596
+0%
1220 Athlon 200GE 4,595
+-0%
1221 Pentium 5405U 4,594
+-0%
1222 Core i5-4300U 4,593
-0.1%
1223 Xeon Silver 4116 4,592
-0.1%

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 i5-3427U based on integer math, floating point math, and prime number computation benchmarks.

4,525 Rank: 1346
Rank Name Score Visual
1342 Celeron G1840 4,525
+0%
1343 Pentium G2020 4,525
+0%
1344 Core i3-7020U 4,525
+0%
1345 Phenom II X4 830 4,525
+0%
1346 Core i5-3427U 4,525
1347 A8-3820 4,525
+0%
1348 Phenom II X4 900e 4,525
+0%
1349 Phenom II X4 820 4,525
+0%
1350 Athlon II X4 645 4,524
+-0%
1351 Pentium 5405U 4,524
+-0%

View full ranking →

Data Processing

Aggregated score for Core i5-3427U based on data encryption, data compression, and string sorting benchmarks.

4,500 Rank: 1329
Rank Name Score Visual
1325 Core i3-6100U 4,500
+0%
1326 Celeron G4920 4,500
+0%
1327 Pentium G3450 4,500
+0%
1328 Xeon E5506 4,500
+0%
1329 Core i5-3427U 4,500
1330 A8-3550MX 4,500
+0%
1331 Celeron G3920 4,499
+-0%
1332 Celeron N3450 4,499
+-0%
1333 Celeron G3950 4,499
+-0%
1334 Pentium 4417U 4,499
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i5-3427U based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,525 Rank: 1242
Rank Name Score Visual
1238 Phenom II X4 980 4,526
+0%
1239 PRO A10-8770E 4,526
+0%
1240 Celeron G4930 4,525
+0%
1241 A10-9630P 4,525
+0%
1242 Core i5-3427U 4,525
1243 A8 PRO-7600B 4,525
+0%
1244 Core i5-2435M 4,524
+-0%
1245 A12-9730P 4,524
+-0%
1246 Core i5-8200Y 4,524
+-0%
1247 Phenom II X4 970 4,523
+-0%

View full ranking →

Core i5-3427U Details

With a TDP of just 17 W, the Intel Core i5-3427U exemplifies power efficiency in mobile computing, a design priority for laptops where thermal constraints are tight. Launched in June 2012 as part of Intel's Ivy Bridge family, this processor is built on a 22 nm process and features a dual-core architecture with hyper-threading, delivering four threads for improved multitasking. It operates at a base frequency of 1.8 GHz, capable of boosting up to 2.8 GHz under load, making it suitable for light to moderate workloads. The processor integrates Intel HD Graphics 4000, which supports up to three displays and can reach a burst frequency of 1.15 GHz, enabling basic graphics performance without a discrete GPU. With 3 MB of L3 cache and support for dual-channel DDR3-1600 memory, the i5-3427U offers balanced performance for its time.

In benchmark testing, the Core i5-3427U achieves an overall score of 4540, ranking it #1245 among 2060 processors. Its single-core performance scores 4596, placing it #1218, while its multicore score reaches 4457, ranking #1308. These results place the i5-3427U in the mid-tier of its generation, outperforming older dual-core CPUs like the Pentium G3460 and Celeron B840 but lagging behind more modern processors such as the Core i3-5157U and Athlon 200GE. While its single-core performance is relatively strong for its era, its multicore capabilities are modest, reflecting the limitations of a dual-core design without significant thread scaling. The processor supports a range of advanced features, including AES-NI, AVX, AVX2, and Intel's virtualization technologies (VT-x, VT-d, EPT), making it suitable for light virtualization and secure computing environments.

As of March 2026, the Core i5-3427U is considered obsolete by modern standards, with its performance far behind current-generation CPUs. However, it remains relevant in legacy systems, low-power notebooks, and embedded applications where power efficiency and compatibility are more critical than raw performance. Its low thermal envelope and integrated graphics make it a practical choice for basic productivity tasks, web browsing, and media playback in older devices. For users requiring more computational power, upgrading to a modern processor is recommended, but the i5-3427U still holds value in niche scenarios where its legacy support and energy efficiency are advantageous.
Frequently Compared

AMD Ryzen 7 PRO 2700X 27 views

Intel Xeon Silver 4110 23 views

AMD Ryzen 5 3500X 21 views

Intel Core i5-2450P 21 views

Intel Xeon Silver 4208 21 views

AMD Ryzen 7 PRO 2700 19 views

AMD Ryzen 9 PRO 3900 18 views

AMD Ryzen 5 PRO 3500U 18 views

Intel Xeon Silver 4114 18 views

AMD Ryzen 3 PRO 2200GE 17 views

Intel Core i5-3427U

Main Specifications

Designer: Intel
Name: Core i5-3427U
Model Number: i5-3427U
Cores: 2
Threads: 4
Base Frequency: 1800 MHz
Clock Multiplier: 18x (locked)
Core Name: Ivy Bridge
Socket: FCBGA1023
Package: FC-BGA12F
Target Segment: Mobile
Max CPUs: 1
TDP: 17 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 2.861 MiB

Memory Specifications

Supported Memory Type: DDR3/L/-RS 1333/1600
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 1
PCIe Configuration: 1x16, 2x8, 1x8 2x4

Integrated Graphics

GPU: HD Graphics 4000
GPU Designer: Intel
GPU Max Frequency: 1150 MHz

Physical Specifications

Process: 22 nm
Die Area: 118 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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