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 B860M-K review: 109 specs compared

Avg. price:~£110CPU socket:LGA 1851Chipset:Intel B860Form factor:microATX

ASUS Prime B860M-K Review: Compare 109 technical specifications to see how this product ranks in the Motherboards category and whether it is worth buying.

ASUS Prime B860M-K
6.7/10

Overall score

Score
6.7/ 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–¼ Worse than 61% of models
Score components

40%

5.8

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%

5.8

User score

â–¼Worse than 61% of motherboards
7.7

Value for money

Value for money
7.7/ 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–¼ Worse than 54% of models
Score components

70%

6.7

Overall score

30%

9.9

Price

â–¼Worse than 54%
5.8

Technical score

Technical score
5.8/ 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–¼ Worse than 56% of models
Score components

19%

6.2

Memory

16%

8.1

Platform

16%

6.8

Storage

15%

5.9

Network

13%

2.4

Ports

8%

3.4

Expansion

8%

5.2

Power & Cooling

5%

7.3

Audio

â–¼Worse than 56%
?

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
5.8

User score

User score
5.8/ 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 76% of models

5.8

Mark 8.1 is below the typical mark 8.4 of this category, so it cannot lift the score above the technical score

70%

8.7

Rating

30%

6.6

Popularity

â–¼Worse than 76%
?

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-b860m-k
asus-prime-b860m-k
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 B860M-K

Technical score
Technical score
5.8/ 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–¼ Worse than 56% of models
Score components:

19%

6.2

Memory

16%

8.1

Platform

16%

6.8

Storage

15%

5.9

Network

13%

2.4

Ports

8%

3.4

Expansion

8%

5.2

Power & Cooling

5%

7.3

Audio

5.8
Reviews score
7.8
User score
5.8
List score
?
Value for money
Value for money
7.7/ 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–¼ Worse than 54% of models
Score components:

70%

6.7

Overall score

30%

9.9

Price

7.7
CPU socket
LGA 1851
This motherboard uses LGA 1851, which is more up-to-date than 77.5% of Motherboards and the same as 8% of Motherboards.
CPU platform
Intel
Chipset
Intel B860
This motherboard uses Intel B860, which is more capable than 85.2% of Motherboards and as capable as 3.4% of Motherboards.
Form factor
microATX
Integrated graphics support
yes
This motherboard supports integrated graphics. 10.2% of motherboards support this feature.
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
2
Market range: <2 – >4
This motherboard has 2 Memory slots, which is fewer than 78.1% of motherboards and equal to 21.8% of motherboards.
Maximum memory capacity
128 GB
Market range: <32 GB – >256 GB
This motherboard supports up to 128 GB of memory, which is more than 40.1% of motherboards and equal to 31.9% of motherboards.
Memory channels
2
Maximum RAM speed
8,800 MT/s
Market range: <2.1k MT/s – >8k MT/s
This motherboard supports memory speeds up to 8,800 MT/s, which is higher than that of 95% of motherboards and equal to that of 0.9% of motherboards.
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
4
Market range: <4 – >8
This motherboard has 4 SATA 3 connectors, which is more than 6.1% of motherboards and equal to 46.8% of motherboards.
Supported RAID levels
0/1/5/10
This motherboard RAID support: 0/1/5/10, which is more flexible than 32.5% of Motherboards and the same as 67.5% of Motherboards.
NVMe RAID support
no
This motherboard does not support NVMe RAID. 59.9% of motherboards support this feature.
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
1
Market range: <0 – >1
This motherboard has 1 PCIe 4.0x16 slots, which is more than 55.2% of motherboards and equal to 35.7% of motherboards.
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
This motherboard splits its PCIe lanes as x16/x1, which is less generous than 66.3% of Motherboards and the same as 4.9% of Motherboards.
PCIe bifurcation support
no
This motherboard does not support PCIe bifurcation. 59.8% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
6
Market range: <6 – >10
This motherboard has 6 USB ports (rear I/O), which is fewer than 63.8% of motherboards and equal to 32.8% of motherboards.
Total USB ports (including headers)
13
Market range: <11 – >19
This motherboard has 13 USB ports (including headers), which is fewer than 64.8% of motherboards and equal to 7.6% 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.
front/internal header excluded.
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.
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.
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
no
This motherboard does not support Wi-Fi connectivity. 50.1% of motherboards support this feature.
Wi-Fi version
N/A
Show more
Audio codec
Realtek ALC897
This motherboard uses Realtek ALC897, which is higher-end than 20.2% of Motherboards and the same as 29.9% 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.
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VRM phases
6+1+1+1
This motherboard has 6+1+1+1 VRM phases, which is fewer than 66.4% of motherboards and equal to 0.5% 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
3
Market range: <3 – >8
This motherboard has 3 fan headers, which is fewer than 77.1% of motherboards and equal to 14.8% of motherboards.
Pump header
no
This motherboard does not have a pump header. 77.9% 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 B860M-K vs the average motherboard

246810TotalPlatformMemoryStorageExpansionPortsNetworkAudioPower & Cooling
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (LGA 1851 vs LGA 1151).
    LGA 1,851 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
  • 87.3% higher maximum RAM speed
    This motherboard has a higher maximum RAM speed than the average motherboard (8,800 MT/s vs 4,699.5 MT/s). The average motherboard supports RAM speed of 4,699.5 MT/s.
    8,800 MT/s vs 4,699.5 MT/s
  • 1 more PCIe 4.0x16 slots
    This motherboard has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    1 vs 0
  • 76% higher overclocked RAM speed
    This motherboard has a higher overclocked RAM speed than the average motherboard (8,800 MT/s vs 5,000 MT/s). The average motherboard supports overclocked RAM speed of 5,000 MT/s.
    8,800 MT/s vs 5,000 MT/s
  • 1 more PCIe x1 slots
    This motherboard has more PCIe x1 slots than the average motherboard (2 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    2 vs 1
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (LGA 1851 vs LGA 1151).
    LGA 1,851 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
  • 87.3% higher maximum RAM speed
    This motherboard has a higher maximum RAM speed than the average motherboard (8,800 MT/s vs 4,699.5 MT/s). The average motherboard supports RAM speed of 4,699.5 MT/s.
    8,800 MT/s vs 4,699.5 MT/s
  • 76% higher overclocked RAM speed
    This motherboard has a higher overclocked RAM speed than the average motherboard (8,800 MT/s vs 5,000 MT/s). The average motherboard supports overclocked RAM speed of 5,000 MT/s.
    8,800 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
  • 1 more PCIe 4.0x16 slots
    This motherboard has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    1 vs 0
  • 1 more PCIe x1 slots
    This motherboard has more PCIe x1 slots than the average motherboard (2 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    2 vs 1
  • 2 fewer memory slots
    This motherboard has fewer memory slots than the average motherboard (2 vs 4). The average motherboard has 4 memory slot/s.
    2 vs 4
  • No NVMe RAID support
    This motherboard does not support NVMe RAID, while the average motherboard does. 59.9% of motherboards support NVMe RAID.
  • 2 fewer rear USB ports
    This motherboard has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    6 vs 8
  • No Wi-Fi connectivity
    This motherboard does not support Wi-Fi connectivity, while the average motherboard does. 50.1% of motherboards support Wi-Fi connectivity.
  • No BIOS flashback support
    This motherboard does not support BIOS flashback, while the average motherboard does. 51.3% of motherboards support BIOS flashback.
  • 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.
    front/internal header excluded.
    0 vs 1
  • No Wi-Fi antenna included
    This motherboard does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • No PCIe bifurcation support
    This motherboard does not support PCIe bifurcation, while the average motherboard does. 59.7% of motherboards support PCIe bifurcation.
  • 21.6% lower user score
    User score
    5.8/ 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 76% of models

    5.8

    Mark 8.1 is below the typical mark 8.4 of this category, so it cannot lift the score above the technical score

    70%

    8.7

    Rating

    30%

    6.6

    Popularity

    5.8 vs 7.4
  • No BIOS flashback support
    This motherboard does not support BIOS flashback, while the average motherboard does. 51.3% of motherboards support BIOS flashback.
  • Fewer BIOS update methods
    This motherboard offers fewer BIOS update methods than the average motherboard (UEFI utility, Windows app vs UEFI utility, flashback, Windows app).
    UEFI utility, Windows app vs UEFI utility, flashback, Windows app
  • 2 fewer memory slots
    This motherboard has fewer memory slots than the average motherboard (2 vs 4). The average motherboard has 4 memory slot/s.
    2 vs 4
  • No NVMe RAID support
    This motherboard does not support NVMe RAID, while the average motherboard does. 59.9% of motherboards support NVMe RAID.
  • 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 PCIe bifurcation support
    This motherboard does not support PCIe bifurcation, while the average motherboard does. 59.7% of motherboards support PCIe bifurcation.
  • 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 vs x16/x0/x4, x8/x8/x4).
    x16/x1 vs x16/x0/x4, x8/x8/x4
  • 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
  • 2 fewer rear USB ports
    This motherboard has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    6 vs 8
  • 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.
    front/internal header excluded.
    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
  • 2 fewer total USB connections
    This motherboard has fewer total USB connections than the average motherboard (13 vs 15). The average motherboard has 15 total USB connections.
    13 vs 15
  • No Wi-Fi connectivity
    This motherboard does not support Wi-Fi connectivity, while the average motherboard does. 50.1% of motherboards support Wi-Fi connectivity.
  • No Wi-Fi antenna included
    This motherboard does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • 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.
  • 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.
  • 2.5 fewer fan headers
    This motherboard has fewer fan headers than the average motherboard (3 vs 5.5). The average motherboard has 5.5 fan header/s.
    3 vs 5.5
  • No pump header
    This motherboard does not have a pump header, while the average motherboard does. 77.9% of motherboards include a pump header.
  • 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
  • Fewer VRM phases
    This motherboard has fewer VRM phases than the average motherboard (6+1+1+1 vs 10). The average motherboard has 10 VRM phase/s.
    6+1+1+1 vs 10

Third-party reviews

What customers like about ASUS Prime B860M-K

  • Supports high-speed DDR5 memory up to 8800 MHz (OC)
  • Includes a PCIe 5.0 M.2 slot for ultra-fast storage
  • Equipped with 2.5Gb Ethernet for faster wired networking
  • Affordable entry point for Intel Core Ultra (Series 2) processors
  • Compact Micro-ATX design fits easily into smaller cases
  • Features multiple cooling sensors and hybrid fan headers controllable via Fan Xpert 2+

What customers don't like about ASUS Prime B860M-K

  • Limited expansion with only 2 DIMM slots (maximum 128GB RAM)
  • BIOS interface can be difficult or 'messy' for some users to navigate
  • Slow boot times reported by some users, taking up to 40 seconds to reach the BIOS screen
  • Lacks integrated Wi-Fi and Bluetooth connectivity
  • Basic VRM design with limited heatsinking compared to higher-tier B860 models
  • Difficulty manually tweaking some settings like DRAM voltage in certain BIOS versions

Verdict

The ASUS PRIME B860M-K is a micro-ATX motherboard designed for Intel Core Ultra Processors (Series 2) on the LGA 1851 socket, featuring a 6+1+1+1 phase digital power design for stable performance. Key specifications include support for up to 128GB of dual-channel DDR5 memory with overclocking speeds reaching 8800+MT/s, and a versatile storage configuration with one PCIe 5.0 M.2 slot and one PCIe 4.0 M.2 slot. Its main pros are the high-speed 2.5Gb Ethernet, front-panel USB 5Gbps Type-C support, and DIY-friendly features like Q-LED Core and SafeSlot Core+. However, some cons include a limited selection of only two DIMM slots, no built-in Wi-Fi or Bluetooth, and a basic rear I/O layout with only one USB 10Gbps port.

Compare ASUS Prime B860M-K with other products in the Motherboards category

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