A4-3420

Details and Benchmarks for AMD A4-3420

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 A4-3420 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,212 Rank: 1659
Rank Name Score Visual
1655 Sempron 145 4,214
+0%
1656 Celeron N4100 4,213
+0%
1657 Pentium 3550M 4,213
+0%
1658 Core i5-4202Y 4,213
+0%
1659 A4-3420 4,212
1660 Phenom II X3 720 4,211
+-0%
1661 A10-4600M 4,211
+-0%
1662 Core 2 Duo T5800 4,211
+-0%
1663 Phenom II X3 B73 4,211
+-0%
1664 Phenom II X2 B55 4,211
+-0%

View full ranking →

Multicore Score

Multicore performance score for A4-3420 based on multi-threaded benchmark results.

4,313 Rank: 1718
Rank Name Score Visual
1714 Celeron 2957U 4,314
+0%
1715 Core M 5Y71 4,313
+0%
1716 Athlon II X4 631 4,313
+0%
1717 Pentium 3805U 4,313
+0%
1718 A4-3420 4,313
1719 Core i5-8200Y 4,313
+0%
1720 Athlon 5150 4,313
+0%
1721 Celeron 3965Y 4,312
+-0%
1722 Pentium P6200 4,312
+-0%
1723 Pentium G640 4,311
+-0%

View full ranking →

Singlecore Score

Single-core performance score for A4-3420 based on single-threaded benchmark results.

4,144 Rank: 1637
Rank Name Score Visual
1633 Phenom II X2 B55 4,146
+0%
1634 Athlon X2 240 4,145
+0%
1635 Core i5-450M 4,145
+0%
1636 Pentium E5300 4,144
+0%
1637 A4-3420 4,144
1638 Core i5-3339Y 4,143
+-0%
1639 Core 2 Duo T9400 4,143
+-0%
1640 Xeon E5506 4,142
+-0%
1641 Celeron E3500 4,142
+-0%
1642 A8-3820 4,142
+-0%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for A4-3420 based on integer math, floating point math, and prime number computation benchmarks.

4,482 Rank: 1662
Rank Name Score Visual
1658 Celeron E3400 4,482
+0%
1659 E2-9000 4,482
+0%
1660 A6-4455M 4,482
+0%
1661 Xeon 5150 4,482
+0%
1662 A4-3420 4,482
1663 Athlon II X2 235e 4,482
+0%
1664 Pentium 987 4,481
+-0%
1665 Core i3-2357M 4,481
+-0%
1666 Athlon II X2 215 4,481
+-0%
1667 Celeron N2910 4,481
+-0%

View full ranking →

Data Processing

Aggregated score for A4-3420 based on data encryption, data compression, and string sorting benchmarks.

4,463 Rank: 1589
Rank Name Score Visual
1585 A4-3400 4,463
+0%
1586 Core i5-4202Y 4,463
+0%
1587 A8-4555M 4,463
+0%
1588 Celeron G1610T 4,463
+0%
1589 A4-3420 4,463
1590 A6-5400K 4,462
+-0%
1591 Pentium 4410Y 4,462
+-0%
1592 Athlon II X2 240e 4,462
+-0%
1593 Pentium 3550M 4,461
+-0%
1594 Athlon II X2 215 4,461
+-0%

View full ranking →

Physics & Compute

Aggregated score for A4-3420 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,468 Rank: 1622
Rank Name Score Visual
1618 Celeron 887 4,468
+0%
1619 Athlon II X2 255 4,468
+0%
1620 A4-4000 4,468
+0%
1621 Pentium P6200 4,468
+0%
1622 A4-3420 4,468
1623 Celeron N4000 4,467
+-0%
1624 Athlon II X2 250 4,467
+-0%
1625 Pentium P6100 4,467
+-0%
1626 Pentium N3510 4,467
+-0%
1627 E2-3200 4,467
+-0%

View full ranking →

A4-3420 Details

The AMD A4-3420, launched in December 2011, is a desktop processor built on the Llano architecture and designed for budget-oriented systems. With a base clock of 2.8 GHz and a 65 W TDP, it delivers moderate performance for its time, particularly in integrated graphics workloads. Though it is now over a decade old, the A4-3420 remains notable for its combination of dual-core processing and integrated Radeon HD 6410D graphics, making it a viable option for basic computing and media playback in low-power environments.

The processor features a 32 nm manufacturing process and operates on the Socket FM1 platform, which was common for AMD’s mainstream desktop lineup during the early 2010s. It includes 2 cores and 2 threads, with no simultaneous multithreading support, and relies on a locked clock multiplier, limiting overclocking potential. The L2 cache totals 1.0 MiB, split as 512 KB per core, while L1 cache totals 0.122 MiB. It supports DDR3 memory at up to 1866 MT/s in dual-channel mode, offering a memory bandwidth of 29.9 GB/s.

Integrated into the A4-3420 is the Radeon HD 6410D GPU, which features 128 stream processors and can reach a maximum frequency of 600 MHz. It supports up to two display outputs, making it suitable for dual-monitor setups in office or home environments. The processor also supports essential technologies such as AMD-V for hardware virtualization, SSE, SSE2, SSE3, SSE4a, and 3DNow!, ensuring compatibility with a wide range of software from its era.

In benchmark testing, the A4-3420 achieves an Overall Score of 4212, placing it at #1659 out of 2060 processors in the database. Its Singlecore Score is 4144 (#1636), while the Multicore Score is 4313 (#1715). These results indicate that the A4-3420 performs comparably to mid-range mobile processors from the same period, such as the Core i5-2415M and Core i7-2640M, but trails significantly behind modern CPUs. It falls well below the top-tier processors in the 2026 rankings, with the highest-scoring CPU, the Ryzen Threadripper PRO 9995WX, achieving a score over 9,000.

As of March 2026, the A4-3420 is best suited for legacy systems, light office use, or as a secondary processor in older machines. Its integrated graphics and low power consumption make it useful in compact or energy-efficient builds, though it lacks the performance and features required for modern gaming, content creation, or heavy multitasking. While it holds historical significance as part of AMD’s early unified CPU-GPU design, its performance is now largely obsolete in the current market.
Frequently Compared

AMD Ryzen 3 PRO 2200GE 34 views

Intel Celeron G530 34 views

AMD Ryzen 5 3500X 32 views

AMD Ryzen 5 3600 31 views

AMD Ryzen 9 PRO 3900 31 views

Intel Xeon W3505 31 views

AMD Phenom 9750 30 views

Intel Core 2 Duo E8600 30 views

Intel Atom Z520 30 views

AMD Athlon II X2 270 28 views

AMD A4-3420

Main Specifications

Designer: AMD
Name: A4-3420
Cores: 2
Threads: 2
Base Frequency: 2800 MHz
Clock Multiplier: 28x (locked)
Core Name: Llano
Socket: Socket FM1
Package: µPGA
Target Segment: Desktop
TDP: 65 W

Cache Specifications

L1 Cache: 124.928 KiB
L2 Cache: 0.488 MiB

Memory Specifications

Supported Memory Type: DDR3

Physical Specifications

Process: 32 nm
Die Area: 228 mm²

CPU Features

MMX SSE SSE2 SSE3 SSE4a AMD-V 3DNow!
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