Pentium G3420

Details and Benchmarks for Intel Pentium G3420

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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 Pentium G3420 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,661 Rank: 1141
Rank Name Score Visual
1137 Core i7-5600U 4,666
+0.1%
1138 A10-9700 4,665
+0.1%
1139 Core i5-2310 4,664
+0.1%
1140 Core i5 760 4,662
+0%
1141 Pentium G3420 4,661
1142 Pentium G2120 4,661
+0%
1143 Xeon E3-1270 4,660
+-0%
1144 Core i3-6100H 4,658
-0.1%
1145 Core i5-2320 4,657
-0.1%
1146 Xeon E3-1245 4,654
-0.2%

View full ranking →

Multicore Score

Multicore performance score for Pentium G3420 based on multi-threaded benchmark results.

4,397 Rank: 1463
Rank Name Score Visual
1459 Core i7-2617M 4,398
+0%
1460 Core i5-2557M 4,398
+0%
1461 Xeon E5606 4,398
+0%
1462 Pentium B950 4,397
+0%
1463 Pentium G3420 4,397
1464 Phenom 9150e 4,397
+0%
1465 Xeon E3-1220L v2 4,397
+0%
1466 Core i7-2637M 4,396
+-0%
1467 Core M-5Y71 4,396
+-0%
1468 A8-3820 4,396
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Pentium G3420 based on single-threaded benchmark results.

4,837 Rank: 1050
Rank Name Score Visual
1046 Xeon D-1541 4,841
+0.1%
1047 FX-4300 4,841
+0.1%
1048 Core i5-3350P 4,838
+0%
1049 Core i7-3610QM 4,837
+0%
1050 Pentium G3420 4,837
1051 Core i3-4160T 4,836
+-0%
1052 Core i3-3240 4,835
+-0%
1053 Xeon E5-2628L v4 4,833
-0.1%
1054 Xeon E5-2697 v2 4,830
-0.1%
1055 Core i7-3635QM 4,828
-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 Pentium G3420 based on integer math, floating point math, and prime number computation benchmarks.

4,541 Rank: 1221
Rank Name Score Visual
1217 Celeron J4125 4,542
+0%
1218 Core i3-6100TE 4,541
+0%
1219 Core i3-7130U 4,541
+0%
1220 Core i5-5257U 4,541
+0%
1221 Pentium G3420 4,541
1222 Phenom II X4 955 4,541
+0%
1223 FX-9800P 4,541
+0%
1224 Xeon E3-1220L v2 4,541
+0%
1225 Celeron G5900 4,541
+0%
1226 Athlon Silver 3050U 4,541
+0%

View full ranking →

Data Processing

Aggregated score for Pentium G3420 based on data encryption, data compression, and string sorting benchmarks.

4,494 Rank: 1368
Rank Name Score Visual
1364 A8-3510MX 4,495
+0%
1365 Core i5-2410M 4,494
+0%
1366 Celeron G3930 4,494
+0%
1367 Atom C3508 4,494
+0%
1368 Pentium G3420 4,494
1369 Pentium G3250 4,494
+0%
1370 Core i7-4550U 4,494
+0%
1371 Core i5-3337U 4,494
+0%
1372 Phenom II X3 720 4,494
+0%
1373 Core i3-550 4,494
+0%

View full ranking →

Physics & Compute

Aggregated score for Pentium G3420 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,515 Rank: 1297
Rank Name Score Visual
1293 Core M-5Y51 4,516
+0%
1294 A8-5500B 4,516
+0%
1295 Core i7-2677M 4,515
+0%
1296 Pentium G3260 4,515
+0%
1297 Pentium G3420 4,515
1298 Phenom II X4 B55 4,515
+0%
1299 Phenom II X4 B50 4,515
+0%
1300 Xeon E5506 4,515
+0%
1301 Core M-5Y71 4,515
+0%
1302 Core M-5Y31 4,515
+0%

View full ranking →

Pentium G3420 Details

As of March 2026, the Intel Pentium G3420 remains a relic of the early Haswell era, launched in September 2013 as part of Intel's mainstream desktop lineup. Despite its age, the processor still holds a modest place in the broader performance landscape, particularly for legacy systems or entry-level tasks. With a dual-core, dual-thread design and a base clock of 3.2 GHz, the G3420 leverages Intel's 22 nm process node and the Haswell microarchitecture to deliver a balanced performance profile, albeit one that now trails far behind modern offerings. Its 53 W TDP and FCLGA1150 socket reflect the efficiency and design priorities of its time, while the integrated Intel HD Graphics (Haswell) provides basic visual output for office work and light media playback. The processor supports up to 32 GB of DDR3-1600 memory across a dual-channel interface, enabling reasonable bandwidth for its intended use case.

In benchmark evaluations, the Pentium G3420 achieves an Overall Score of 4661, placing it at #1141 among 2060 processors, with a Singlecore Score of 4837 (#1049) and a Multicore Score of 4397 (#1462). These results indicate that while the CPU performs adequately in single-threaded applications—particularly when compared to older low-power mobile chips like the Core i3-6100H—it struggles to compete in multi-threaded workloads, where its lack of hyperthreading and limited core count become significant bottlenecks. Notably, the G3420 is outpaced by numerous modern CPUs in all categories, including low-end desktops and entry-level mobile processors. The most striking gap appears in multicore performance, where it ranks well below contemporary budget and mid-tier offerings.

The processor’s strengths lie in its compatibility with older systems and its ability to handle light computing tasks such as web browsing, document editing, and media playback. Its integrated graphics support up to three displays and operate at a maximum frequency of 1150 MHz, though it is not suited for gaming or GPU-intensive applications. Intel’s inclusion of features like AVX2, AES-NI, and virtualization support (VT-x, VT-d) ensures that the G3420 can still run modern software, albeit with limitations. However, its locked multiplier and lack of SMT (Hyper-Threading) restrict its overclocking potential and efficiency in multithreaded environments.

Given its age and modest performance, the Pentium G3420 is best suited for basic desktop computing in systems where cost, power efficiency, and compatibility are more critical than raw processing power. It remains a viable option for secondary machines, embedded systems, or retro builds, but it is no longer competitive in the modern market. For users seeking improved performance, upgrading to even a modest modern CPU would yield substantial gains in both single- and multicore efficiency.
Frequently Compared

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Intel Pentium G3420

Main Specifications

Designer: Intel
Name: Pentium G3420
Model Number: G3420
Cores: 2
Threads: 2
Base Frequency: 3200 MHz
Clock Multiplier: 32x (locked)
Core Name: Haswell
Socket: FCLGA1150
Package: FC-LGA12C
Target Segment: Desktop
Max CPUs: 1
TDP: 53 W

Cache Specifications

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

Memory Specifications

Supported Memory Type: DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: Up to 3.0
PCIe Lanes: 16
PCIe Configuration: Up to 1x16, 2x8, 1x8+2x4

Integrated Graphics

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

Physical Specifications

Process: 22 nm
Die Area: 177 mm²
Manufacturer: Intel
Word Size: 64-bit

CPU Features

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