OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Motherboards Methodology v3.0
Motherboards Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Motherboards Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Motherboards Methodology v3.0

ASUS Prime B650M-A AX II review: 109 specs compared

Avg. price:~£110CPU socket:AM5Chipset:AMD B650Form factor:microATX

ASUS Prime B650M-A AX II Review: Compare 109 technical specifications to see how this product ranks in the Motherboards category and whether it is worth buying.

ASUS Prime B650M-A AX II
7.3/10

Overall score

Score
7.3/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, expert reviews, best-of lists, owners and ratings from across the web.
How we count it
Parts: Technical score 40%, Reviews score 20%, List score 20%, Sentiment score 10%, User score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 63% of models
Score components

40%

7.1

Technical score

20%

?

Reviews scoreNot enough data yet, so we use 7.8, the mark of a weaker model in this category

20%

?

List scoreNot enough data yet, so we use 7.5, the mark of a weaker model in this category

10%

?

Sentiment scoreNot enough data yet, so we use 7.0, the mark of a weaker model in this category

10%

7.1

User score

â–²Better than 63% of motherboards
8.1

Value for money

Value for money
8.1/ 10
✕
What it is
An indicator that combines the motherboard's overall rating with its cost.
When it matters
When you are looking for a motherboard that offers a strong balance of features, performance, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 73% of models
Score components

70%

7.3

Overall score

30%

9.9

Price

â–²Better than 73%
7.1

Technical score

Technical score
7.1/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 40% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 68% of models
Score components

19%

9.0

Memory

16%

8.5

Platform

16%

7.2

Storage

15%

7.6

Network

13%

4.2

Ports

8%

3.9

Expansion

8%

6.5

Power & Cooling

5%

6.6

Audio

â–²Better than 68%
?

Reviews score

Reviews score
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Big test sites count more, short reviews half as much as full tests. A video review counts half.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.8 for now.
Share: Reviews count 20% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
Grades by review (0)
We have not found an independent test of this model yet. Until we do, its review part counts as 7.8.
Ratings from across the web count in the User score, not in this score.
No expert tests yet
7.1

User score

User score
7.1/ 10
✕
What it is
How happy buyers are with this model, based on ratings from across the web.
How we count it
Enough data: A model needs at least 1 rating from across the web. Without one, it counts as 7.9, the mark of a weaker rated model in this category.
Share: User score counts 10% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 64% of models

7.1

Mark 8.3 is below the typical mark 8.4 of this category, so it cannot lift the score above the technical score

70%

8.4

Rating

30%

8.0

Popularity

â–¼Worse than 64%
?

List score

List score
7.5/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 20% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (0)
Not in any best-of list yet, so this part counts as 7.5. Models in a list get 8 to 10.
Not in any best-of list yet
  • asus-prime-b650m-a-ax-ii
asus-prime-b650m-a-ax-ii
Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of motherboard ASUS Prime B650M-A AX II

Technical score
Technical score
7.1/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 40% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 68% of models
Score components:

19%

9.0

Memory

16%

8.5

Platform

16%

7.2

Storage

15%

7.6

Network

13%

4.2

Ports

8%

3.9

Expansion

8%

6.5

Power & Cooling

5%

6.6

Audio

7.1
Reviews score
7.8
User score
7.1
List score
?
Value for money
Value for money
8.1/ 10
✕
What it is
An indicator that combines the motherboard's overall rating with its cost.
When it matters
When you are looking for a motherboard that offers a strong balance of features, performance, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 73% of models
Score components:

70%

7.3

Overall score

30%

9.9

Price

8.1
CPU socket
AM5
This motherboard uses AM5, which is more up-to-date than 85.5% of Motherboards and the same as 14.5% of Motherboards.
CPU platform
AMD
Chipset
AMD B650
This motherboard uses AMD B650, which is more capable than 72.2% of Motherboards and as capable as 4.1% of Motherboards.
Form factor
microATX
Integrated graphics support
yes
This motherboard supports integrated graphics. 10.2% of motherboards support this feature.
Rear outputs: HDMI + DisplayPort.
Show more
DDR memory version
DDR5
This motherboard uses DDR5, which is more modern than 63.8% of Motherboards and the same as 36.2% of Motherboards.
Memory slots
4
Market range: <2 – >4
This motherboard has 4 Memory slots, which is more than 21.9% of motherboards and equal to 72% of motherboards.
Maximum memory capacity
192 GB
Market range: <32 GB – >256 GB
This motherboard supports up to 192 GB of memory, which is more than 72% of motherboards and equal to 10.4% of motherboards.
Memory channels
2
Maximum RAM speed
7,600 MT/s
Market range: <2.1k MT/s – >8k MT/s
This motherboard supports memory speeds up to 7,600 MT/s, which is higher than that of 80.8% of motherboards and equal to that of 2.3% of motherboards.
maximum depends on CPU configuration
Show more
N. of M.2 sockets
2
Market range: <0 – >4
This motherboard has 2 M.2 sockets, which is more than 30.5% of motherboards and equal to 34.5% of motherboards.
M.2 slot interface per slot
1x PCIe 5.0 x4, 1x PCIe 4.0 x4
This motherboard offers M.2 slots: 1x PCIe 5.0x4, 1x PCIe 4.0x4, which is faster than 80% of Motherboards and the same as 2.9% of Motherboards.
N. of SATA 3 connectors
8
Market range: <4 – >8
This motherboard has 8 SATA 3 connectors, which is more than 85.5% of motherboards and equal to 11.1% of motherboards.
Supported RAID levels
0/1/10
This motherboard RAID support: 0/1/10, which is less flexible than 67.6% of Motherboards and the same as 23.6% of Motherboards.
JBOD excluded from RAID-level set
NVMe RAID support
yes
This motherboard supports NVMe RAID. 40.2% of motherboards support this feature.
RAID 0/1/10 only
Show more
N. of PCIe 5.0 x16 slots
0
Market range: <0 – >1
This motherboard has 0 PCIe 5.0x16 slots, which is fewer than 31.6% of motherboards and equal to 68.4% of motherboards.
N. of PCIe 4.0 x16 slots
4
Market range: <0 – >1
This motherboard has 4 PCIe 4.0x16 slots, which is more than 99.7% of motherboards and equal to 0.2% of motherboards.
runs at x1 mode
N. of PCIe 3.0 x16 slots
0
Market range: <0 – >3
This motherboard has 0 PCIe 3.0x16 slots, which is fewer than 59.6% of motherboards and equal to 40.4% of motherboards.
PCIe slot electrical configuration
x16/x1/x1
This motherboard splits its PCIe lanes as x16/x1/x1, which is less generous than 59% of Motherboards and the same as 5.6% of Motherboards.
PCIe bifurcation support
yes
This motherboard supports PCIe bifurcation. 40.3% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
8
Market range: <6 – >10
This motherboard has 8 USB ports (rear I/O), which is more than 40.6% of motherboards and equal to 30.3% of motherboards.
Total USB ports (including headers)
15
Market range: <11 – >19
This motherboard has 15 USB ports (including headers), which is more than 47.7% of motherboards and equal to 13.5% of motherboards.
Total USB-C ports (rear I/O)
0
Market range: <0 – >2
This motherboard has 0 USB-C ports (rear I/O), which is fewer than 64.2% of motherboards and equal to 35.8% of motherboards.
Total USB-C ports (including headers)
1
Market range: <0 – >3
This motherboard has 1 USB-C ports (including headers), which is more than 30.5% of motherboards and equal to 21.1% of motherboards.
includes internal USB-C header.
N. of USB 3.2 Gen2x2 ports (USB-C)
0
Market range: <0 – >1
This motherboard has 0 USB 3.2 Gen2x2 ports (USB-C), which is fewer than 18% of motherboards and equal to 82% of motherboards.
10Gbps excluded.
Show more
LAN speed
2.5 Gbps
Market range: <1 Gbps – >2.5 Gbps
This motherboard supports LAN speeds up to 2.5 Gbps, which is higher than that of 49% of motherboards and equal to that of 41.4% of motherboards.
LAN controller
Killer + Intel + Realtek
This motherboard has a Killer + Intel + Realtek LAN controller, which is slower than 64.6% of Motherboards and equal to 28.7% of Motherboards.
N. of RJ45 ports
1
Market range: <1 – >2
This motherboard has 1 RJ45 ports, which is fewer than 14.4% of motherboards and equal to 85.6% of motherboards.
Wi-Fi connectivity
yes
This motherboard supports Wi-Fi connectivity. 50% of motherboards support this feature.
Wi-Fi version
Wi-Fi 6 (802.11ax)
This motherboard uses Wi-Fi 6 (802.11ax), which is newer than 60.3% of Motherboards and the same as 11.2% of Motherboards.
Show more
Audio codec
Realtek 7.1 Surround Sound High Definition Audio CODEC
This motherboard uses Realtek 7.1 Surround Sound High Definition Audio CODEC, which is lower-end than 98.9% of Motherboards and the same as 0.9% of Motherboards.
Audio channels
7.1
This motherboard offers 7.1 audio channels, which is more than 4.7% of motherboards and equal to 95.3% of motherboards.
Audio SNR
?
Headphone amp support
no
This motherboard does not support a headphone amp. 58.8% of motherboards support this feature.
N. of 3.5mm audio jacks
3
Market range: <2 – >6
This motherboard has 3 3.5mm audio jacks, which is more than 11.3% of motherboards and equal to 39.3% of motherboards.
Show more
VRM phases
10+1
This motherboard has 10+1 VRM phases, which is more than 50.7% of motherboards and equal to 0.7% of motherboards.
N. of CPU power connectors
1
Market range: <1 – >2
This motherboard has 1 CPU power connectors, which is fewer than 45.2% of motherboards and equal to 54.9% of motherboards.
N. of fan headers
5
Market range: <3 – >8
This motherboard has 5 fan headers, which is fewer than 50% of motherboards and equal to 14.6% of motherboards.
Pump header
yes
This motherboard has a pump header. 22.1% of motherboards include this feature.
Pump header max current
0 A
Market range: <0 A – >3 A
This motherboard supports up to 0 A on the pump header, which is lower than that of 76.2% of motherboards and equal to that of 23.8% of motherboards.
Show more

ASUS Prime B650M-A AX II vs the average motherboard

246810TotalPlatformMemoryStorageExpansionPortsNetworkAudioPower & Cooling
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (AM5 vs LGA 1151).
    AM5 vs LGA 1,151
  • 1 more top-speed NVMe slots
    This motherboard has more PCIe 5.0 M.2 slots than the average motherboard (1 vs 0).
    1 vs 0
  • More modern memory type
    This motherboard uses a more modern memory type than the average motherboard (DDR5 vs DDR4).
    DDR5 vs DDR4
  • 4 more PCIe 4.0x16 slots
    This motherboard has more PCIe 4.0x16 slots than the average motherboard (4 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    runs at x1 mode
    4 vs 0
  • 50% more maximum memory capacity
    This motherboard has more maximum memory capacity than the average motherboard (192 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    192 GB vs 128 GB
  • 1 more USB 3.2 Gen2 ports
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    2 vs 1
  • 61.7% higher maximum RAM speed
    This motherboard has a higher maximum RAM speed than the average motherboard (7,600 MT/s vs 4,699.5 MT/s). The average motherboard supports RAM speed of 4,699.5 MT/s.
    maximum depends on CPU configuration
    7,600 MT/s vs 4,699.5 MT/s
  • 4 more SATA 3 connectors
    This motherboard has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
    8 vs 4
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (AM5 vs LGA 1151).
    AM5 vs LGA 1,151
  • More modern memory type
    This motherboard uses a more modern memory type than the average motherboard (DDR5 vs DDR4).
    DDR5 vs DDR4
  • 50% more maximum memory capacity
    This motherboard has more maximum memory capacity than the average motherboard (192 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    192 GB vs 128 GB
  • 61.7% higher maximum RAM speed
    This motherboard has a higher maximum RAM speed than the average motherboard (7,600 MT/s vs 4,699.5 MT/s). The average motherboard supports RAM speed of 4,699.5 MT/s.
    maximum depends on CPU configuration
    7,600 MT/s vs 4,699.5 MT/s
  • Supports ECC memory
    This motherboard supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
    ECC requires compatible CPU.
  • 52% higher overclocked RAM speed
    This motherboard has a higher overclocked RAM speed than the average motherboard (7,600 MT/s vs 5,000 MT/s). The average motherboard supports overclocked RAM speed of 5,000 MT/s.
    7,600 MT/s vs 5,000 MT/s
  • 1 more top-speed NVMe slots
    This motherboard has more PCIe 5.0 M.2 slots than the average motherboard (1 vs 0).
    1 vs 0
  • 4 more SATA 3 connectors
    This motherboard has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
    8 vs 4
  • 4 more PCIe 4.0x16 slots
    This motherboard has more PCIe 4.0x16 slots than the average motherboard (4 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    runs at x1 mode
    4 vs 0
  • 1 more USB 3.2 Gen2 ports
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    2 vs 1
  • Supports Bluetooth
    This motherboard supports Bluetooth, while the average motherboard does not. 49% of motherboards support Bluetooth.
    Bluetooth 5.2.
  • More recent Wi-Fi standard
    This motherboard has a more recent Wi-Fi standard than the average motherboard (Wi-Fi 6 (802.11ax) vs Wi-Fi 5 (802.11ac)).
    Wi-Fi 6 (802.11ax) vs Wi-Fi 5 (802.11ac)
  • 1 more ARGB headers
    This motherboard has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.
    3 vs 2
  • 1 fewer rear USB-C ports
    This motherboard has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
    0 vs 1
  • Fewer RAID options
    This motherboard offers fewer RAID levels than the average motherboard (0/1/10 vs 0/1/5/10).
    JBOD excluded from RAID-level set
    0/1/10 vs 0/1/5/10
  • 2 fewer USB 3.2 Gen1 ports
    This motherboard has fewer USB 3.2 Gen1 ports than the average motherboard (2 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    2 vs 4
  • No multi-GPU support
    This motherboard does not support multi-GPU, while the average motherboard does. 53.9% of motherboards support multi-GPU.
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (AMD B650 vs Intel B860).
    AMD B650 vs Intel B860
  • No headphone amp support
    This motherboard does not support a headphone amp, while the average motherboard does. 58.8% of motherboards support a headphone amp.
  • Less capable onboard audio
    This motherboard has a lower-end audio codec than the average motherboard (Realtek 7.1 Surround Sound High Definition Audio CODEC vs Realtek ALC897).
    Realtek 7.1 Surround Sound High Definition Audio CODEC vs Realtek ALC897
  • Less generous lane split
    This motherboard splits its PCIe lanes less generously than the average motherboard (x16/x1/x1 vs x16/x0/x4, x8/x8/x4).
    x16/x1/x1 vs x16/x0/x4, x8/x8/x4
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (AMD B650 vs Intel B860).
    AMD B650 vs Intel B860
  • Fewer RAID options
    This motherboard offers fewer RAID levels than the average motherboard (0/1/10 vs 0/1/5/10).
    JBOD excluded from RAID-level set
    0/1/10 vs 0/1/5/10
  • Slower NVMe storage slots
    This motherboard has slower M.2 slots than the average motherboard (1x PCIe 5x4, 1x PCIe 4x4 vs 1x PCIe 5x4, 2x PCIe 4x4).
    1x PCIe 5.0x4, 1x PCIe 4.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • No multi-GPU support
    This motherboard does not support multi-GPU, while the average motherboard does. 53.9% of motherboards support multi-GPU.
  • Less generous lane split
    This motherboard splits its PCIe lanes less generously than the average motherboard (x16/x1/x1 vs x16/x0/x4, x8/x8/x4).
    x16/x1/x1 vs x16/x0/x4, x8/x8/x4
  • 1 fewer PCIe x1 slots
    This motherboard has fewer PCIe x1 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    0 vs 1
  • 1 fewer PCIe 3.0x16 slots
    This motherboard has fewer PCIe 3.0x16 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
    0 vs 1
  • 1 fewer rear USB-C ports
    This motherboard has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
    0 vs 1
  • 2 fewer USB 3.2 Gen1 ports
    This motherboard has fewer USB 3.2 Gen1 ports than the average motherboard (2 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    2 vs 4
  • Less recent Bluetooth version
    This motherboard has a less recent Bluetooth version than the average motherboard (5.2 vs 5.4).
    5.2 vs 5.4
  • No headphone amp support
    This motherboard does not support a headphone amp, while the average motherboard does. 58.8% of motherboards support a headphone amp.
  • Less capable onboard audio
    This motherboard has a lower-end audio codec than the average motherboard (Realtek 7.1 Surround Sound High Definition Audio CODEC vs Realtek ALC897).
    Realtek 7.1 Surround Sound High Definition Audio CODEC vs Realtek ALC897
  • No optical S/PDIF out
    This motherboard does not have optical S/PDIF out, while the average motherboard does. 55.4% of motherboards include optical S/PDIF out.
  • 2 A lower pump header current limit
    This motherboard has a lower pump header current than the average motherboard (0 A vs 2 A). The average motherboard provides pump header current of 2 A.
    0 A vs 2 A
  • 0.5 fewer fan headers
    This motherboard has fewer fan headers than the average motherboard (5 vs 5.5). The average motherboard has 5.5 fan header/s.
    5 vs 5.5

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Overview video

Third-party reviews

What customers like about ASUS Prime B650M-A AX II

  • High number of storage options, featuring 8 SATA ports and 2 M.2 slots (one supporting PCIe 5.0).
  • Excellent value for budget-conscious AM5 builds and NAS configurations.
  • Reliable WiFi 6 and 2.5Gb Ethernet connectivity for fast networking.
  • Includes essential modern features like front-panel USB-C and BIOS FlashBack.
  • Generally user-friendly BIOS interface that is easy to navigate.

What customers don't like about ASUS Prime B650M-A AX II

  • Frequent reports of long POST times, sometimes taking 40 seconds or more to boot.
  • Potentially weak VRM thermal performance, with some users noting high temperatures under heavy loads.
  • Inconsistent memory stability, particularly when using high-speed EXPO/XMP profiles above 4800-5200MHz.
  • Lack of integrated debug LEDs can make troubleshooting boot failures difficult.
  • Mixed reports on Bluetooth reliability and spotty connectivity in some environments.

Verdict

The ASUS Prime B650M-A AX II is a versatile micro-ATX motherboard designed for the AMD AM5 socket, supporting Ryzen 9000, 8000, and 7000 series processors. Key specifications include four DDR5 slots supporting up to 192GB at 7600+(OC) speeds, dual M.2 slots (one with PCIe 5.0 x4 support), and surprisingly robust storage expansion featuring eight SATA 6Gb/s ports. Its main pros are the balanced connectivity suite—comprised of Wi-Fi 6, 2.5Gb Ethernet, and rear USB 3.2 Gen 2—alongside the BIOS FlashBack™ feature for easy updates. On the downside, some users have reported issues with long POST times during initial memory training and occasional coil whine.

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