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AMD launched the A520 chipset on August 18, 2020, bringing lower-cost 500-series motherboards to the AM4 platform. Its bargain comes with clear compromises: A520 uses PCIe 3.0, does not support CPU overclocking, and offers less expansion headroom than B550 or X570. For a basic single-GPU Ryzen system, however, it can still be a sensible budget choice—provided the exact motherboard supports the processor you plan to use.
What AMD A520 is
A520 is AMD’s entry-level 500-series chipset for AM4 motherboards. It sits below B550 and X570 and was designed for Ryzen 3000 desktop processors and newer AM4 chips, including selected Ryzen 4000 G-Series and Ryzen 5000 processors.
The August 18, 2020 launch was a retail rollout rather than only a paper announcement. ASUS, ASRock, GIGABYTE, MSI, and Biostar announced A520 boards, with models appearing in retail channels around launch. Most early boards used the micro-ATX form factor, although mini-ITX and full-size ATX examples also appeared, including GIGABYTE’s A520 AORUS Elite. Contemporary launch coverage described sub-$150 pricing as an expectation based on the B550 market, not as a universal official AMD MSRP.
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In 2026, A520 is a legacy AM4 platform. Its value depends on local stock and pricing, especially if a B550 board is only slightly more expensive.
#1 Best Overall
- Supports 3rd Gen AMD Ryzen Processors
- AMD AM4 Socket
- Dual Channel DDR4, 2 DIMMs
- 4+3 Phases Digital PWM
- PCIe 3.0 x16 Slot
A520 specifications at a glance
| Feature | A520 |
|---|---|
| Socket | AM4 |
| Graphics connection | 1 × PCIe x16 |
| NVMe connection | 1 × PCIe x4 |
| PCIe generation | PCIe 3.0 |
| Maximum SATA ports | 6 |
| Maximum USB ports | 13 total, including up to five USB 3.2 Gen 2 ports |
| PCIe lanes | 34 total / 26 usable |
| CPU overclocking | Not supported |
These are chipset-level maximums from AMD’s AM4 chipset table. A particular motherboard may expose fewer USB ports, SATA connectors, expansion slots, or memory slots. It may also use different lane-sharing arrangements, so the motherboard manual remains more important than the chipset label.
What buyers give up
PCIe 3.0 instead of PCIe 4.0
A520 runs its platform at PCIe 3.0. That means no PCIe 4.0 graphics or NVMe connection on an A520 board, even when the installed Ryzen processor can support PCIe 4.0 on a suitable motherboard.
A PCIe 3.0 x4 NVMe slot is still fast enough for ordinary gaming, office work, and general desktop use. The limitation becomes more important with high-end PCIe 4.0 SSDs, sustained storage transfers, multiple expansion devices, or a buyer who wants more bandwidth headroom. The practical issue is not that PCIe 3.0 is unusable; it is that A520 deliberately limits future expansion.
Graphics performance is workload- and GPU-dependent. A520 should not be described as having universally identical gaming performance to B550 without testing a particular system, but the chipset’s main cost-saving decision is clear: it removes PCIe 4.0.
Rank #2
- Support 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors
- Supports DDR4 Memory, up to 4600(OC) MHz
- Turbo M.2: Running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDs
- Audio Boost: Reward your ears with studio grade sound quality
- Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface
No CPU overclocking
AMD lists processor overclocking as unavailable on A520. This does not necessarily prevent memory tuning. Individual boards may support XMP or AMD memory profiles, sometimes marketed as A-XMP, although actual memory speed depends on the CPU’s memory controller, DIMM configuration, BIOS, and board layout.
For example, MSI’s A520M PRO specifications list DDR4 support and memory-profile features while separately using the entry-level A520 platform. Memory-profile support should not be confused with CPU multiplier overclocking.
Ryzen compatibility is more complicated than “Ryzen 3000”
A520’s processor support is one of its biggest traps. The phrase “Ryzen 3000” covers different CPU generations, and not every chip carrying that branding is supported.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitches| Processor family | A520 guidance |
|---|---|
| Ryzen 3000 desktop CPUs, such as the Ryzen 3 3100, Ryzen 5 3600, and Ryzen 7 3700X | Officially supported where listed by the board manufacturer |
| Ryzen 3000G APUs, including the Ryzen 3 3200G and Ryzen 5 3400G | Do not assume compatibility; these older Zen+ Picasso chips are commonly excluded |
| Ryzen 4000 G-Series desktop APUs | Board-specific support; verify the CPU list and BIOS |
| Ryzen 5000 and 5000G processors | Often supported through later BIOS versions, but not universally or necessarily out of the box |
| Ryzen 1000 and 2000 desktop processors | Not generally official A520 support |
AMD’s compatibility information covers processor families, but the final authority is the support page for the exact motherboard. MSI explicitly states that its PRO A520M-S does not support the Ryzen 3 3200G and Ryzen 5 3400G. A board’s “Ryzen 3000 ready” label is therefore not enough evidence for one of those APUs.
Rank #3
- AMD Socket AM4: Ready to support AMD Ryzen 5000/4000/3000 Series Processors
- Enhanced Power Solution: Digital 3+3 VRM Design and premium chokes and capacitors for steady power delivery.
- Advanced Thermal Armor: Chipset heatsinks for better heat dissipation.
- Boost Your Memory: Compatible with DDR4 and supports 4 DIMMS with Extreme Memory Profile support.
- Comprehensive Connectivity: 1x Ultra Durable PCIe 4.0 x16 slot, 1x PCIe 4.0 M.2 slot, 1x PCIe 3.0 M.2 slot, 4x USB 3.2 Gen 1 ports for hassle-free setup.
Before buying, check the exact model, board revision, supported CPU list, minimum BIOS version, and whether the board can update its BIOS without a compatible processor. Later Ryzen 5000 support can depend on a BIOS update, as shown by manufacturer support pages such as GIGABYTE’s A520M DS3H support list.
A520 versus B550 and X570
| Feature | A520 | B550 | X570 |
|---|---|---|---|
| Positioning | Entry-level | Mainstream | High-end |
| PCIe 4.0 | No | Yes, from compatible processors | Yes |
| CPU overclocking | No | Yes | Yes |
| Expansion | Basic single-GPU and single-drive systems | More flexible | Most extensive |
| AMD-listed SATA maximum | 6 | 8 | 14 |
| AMD-listed USB maximum | 13 | 14 | 16 |
| Best fit | Low-cost uncomplicated builds | Upgradeable mainstream systems | High-end multi-device systems |
AMD lists B550 with PCIe 4.0 graphics and NVMe support, CPU overclocking, and greater connectivity. X570 offers still more platform I/O. These are chipset capabilities, not guarantees that every motherboard exposes every maximum; board design, firmware, processor model, and lane sharing still matter.
A good B450 board can also be a better choice for an older Ryzen 3 3200G or Ryzen 5 3400G, especially when discounted or available used. It still requires an exact CPU-support and BIOS check.
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Usually, yes. A520 fits a system with one graphics card, one primary NVMe SSD, no CPU-overclocking requirement, and a Ryzen 3, Ryzen 5, or modest Ryzen 7 processor supported by the board.
Rank #4
- Support 3rd Gen AMD Ryzen Desktop Processors and AMD Ryzen 4000 G-Series Desktop Processors
- Supports DDR4 Memory, up to 4600(OC) MHz
- Turbo M.2: Running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDs
- Audio Boost: Reward your ears with studio grade sound quality
- Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface
The chipset does not determine gaming performance by itself. The graphics card, CPU, memory configuration, cooling, firmware, and motherboard quality matter more. The important distinction is between a cheap chipset and a cheap motherboard. An inexpensive board may have weaker VRM cooling, only two memory slots, fewer fan headers, limited rear I/O, or less useful storage expansion.
For a higher-core-count Ryzen 7 or Ryzen 9, check the board’s power-delivery design and independent VRM testing before assuming that any A520 model is suitable. A520 does not force every manufacturer to build a weak board, but entry-level models often make more compromises.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Integrated graphics: video outputs are not enough
Many A520 motherboards include HDMI, DisplayPort, or VGA outputs. Those connectors work only when the installed processor has integrated graphics. A standard Ryzen 5 3600 or Ryzen 7 3700X does not generate a display signal on its own, so it requires a discrete graphics card.
For an APU build, confirm both that the processor is supported and that the board provides the display connection you need. Do not infer APU compatibility merely from the presence of video ports. MSI’s A520M PRO documentation illustrates the distinction between board video outputs and supported processor families.
Best Value
- A520MK V2 I
- MATX format, ideal for compact cabinets and medium-sized builds
- Support DDR4 memory, enabling high-speed RAM upgrades
What to check before buying an A520 motherboard
- CPU support: confirm the exact processor, board revision, and minimum BIOS version.
- BIOS updating: check whether BIOS Flashback or an equivalent feature is available if the CPU may not work with the factory firmware.
- Memory expansion: choose two or four DIMM slots based on your upgrade plans.
- Storage: verify the number of M.2 and SATA connectors and read the manual’s lane-sharing notes.
- Power delivery: match VRM cooling and board design to the intended CPU.
- Connectivity: count the USB ports, fan headers, networking features, audio outputs, and display connectors you actually need.
- Form factor: make sure the board fits the case, particularly for compact builds.
Who should buy A520?
Choose A520 when the board is meaningfully cheaper than a comparable B550 model and you are building a straightforward AM4 system. It is a reasonable fit for a budget Ryzen 3 or Ryzen 5 gaming PC, an office computer, a compact build, or a system reusing DDR4 memory and an existing supported AM4 processor.
A520 is also attractive when you need one graphics card and one main SSD, do not plan to overclock the CPU, and have no use for PCIe 4.0. The savings are less compelling when a B550 board costs nearly the same.
Who should skip A520?
Prefer B550 when you want PCIe 4.0 storage or graphics support, CPU overclocking, more expansion, multiple fast drives, or a stronger upgrade path within AM4. Consider a verified B450 board instead when your system uses a 3200G or 3400G and a discounted B450 model is substantially cheaper.
For a brand-new system in 2026, compare the total cost of the processor, motherboard, memory, and storage against newer platforms. A520 is not future-proof: it is an inexpensive way to complete a compatible AM4 system, not a feature-complete enthusiast platform.
Quick Recap
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