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

MSI MAG B660M Mortar DDR4 review: 109 specs compared

Avg. price:~£170CPU socket:LGA 1700Chipset:Intel B660Form factor:microATX

MSI MAG B660M Mortar DDR4 Review: Compare 109 technical specifications and 10 expert and video reviews to see how this product ranks in the Motherboards category and whether it is worth buying.

MSI MAG B660M Mortar DDR4
7.4/10

Overall score

Score
7.4/ 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 68% of models
Score components

40%

6.7

Technical score

20%

8.5

Reviews score

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%

8.6

User score

â–²Better than 68% 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%

7.4

Overall score

30%

9.6

Price

â–²Better than 73%
6.7

Technical score

Technical score
6.7/ 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 62% of models
Score components

19%

7.0

Memory

16%

8.3

Platform

16%

5.2

Storage

15%

7.5

Network

13%

6.0

Ports

8%

3.5

Expansion

8%

7.8

Power & Cooling

5%

7.9

Audio

â–²Better than 62%
8.5

Reviews score

Reviews score
8.5/ 10
✕
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
â–² Better than 68% of models

80%

8.3

Average grade

20%

9.1

Popularity

Grades by review (10)
7 reviews: 5 with a printed score, 2 estimated from the review. 3 video reviews, each counting half as much as a written test. Reviews count 20% of the overall score.
Ratings from across the web count in the User score, not in this score.
â–²Better than 68%
8.6

User score

User score
8.6/ 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–² Better than 61% of models

70%

8.8

Rating

30%

8.1

Popularity

â–²Better than 61%
?

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
  • msi-mag-b660m-mortar-ddr4
  • msi-mag-b660m-mortar-ddr4
  • msi-mag-b660m-mortar-ddr4
  • msi-mag-b660m-mortar-ddr4
  • msi-mag-b660m-mortar-ddr4
msi-mag-b660m-mortar-ddr4
msi-mag-b660m-mortar-ddr4
msi-mag-b660m-mortar-ddr4
msi-mag-b660m-mortar-ddr4
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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.

What reviewers say about the MSI MAG B660M Mortar DDR4

Based on 7 · 3

Reviewers praise the sturdy heatsinks and solid power section, but criticize the limited overclocking and missing RGB lighting.
Praised
Mixed views
Criticised
Pick a topic to see who said what
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Technical Specifications of motherboard MSI MAG B660M Mortar DDR4

Technical score
Technical score
6.7/ 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 62% of models
Score components:

19%

7.0

Memory

16%

8.3

Platform

16%

5.2

Storage

15%

7.5

Network

13%

6.0

Ports

8%

3.5

Expansion

8%

7.8

Power & Cooling

5%

7.9

Audio

6.7
Reviews score
8.5
User score
8.6
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%

7.4

Overall score

30%

9.6

Price

8.1
CPU socket
LGA 1700
This motherboard uses LGA 1700, which is more up-to-date than 54.7% of Motherboards and the same as 22.7% of Motherboards.
CPU platform
Intel
Chipset
Intel B660
This motherboard uses Intel B660, which is more capable than 57.3% of Motherboards and as capable as 2.7% of Motherboards.
Form factor
microATX
Integrated graphics support
yes
This motherboard supports integrated graphics. 10.2% of motherboards support this feature.
Show more
What reviewers say
DDR memory version
DDR4
This motherboard uses DDR4, which is more modern than 13.4% of Motherboards and the same as 50.4% 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
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
5,333 MT/s
Market range: <2.1k MT/s – >8k MT/s
This motherboard supports memory speeds up to 5,333 MT/s, which is higher than that of 63% of motherboards and equal to that of 5.1% of motherboards.
top speed with 1DPC 1R memory
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 4.0 x4, 1x PCIe 4.0 x4/SATA
This motherboard offers M.2 slots: 1x PCIe 4.0x4, 1x PCIe 4.0x4/SATA, which is faster than 49.9% of Motherboards and the same as 3.1% of Motherboards.
N. of SATA 3 connectors
6
Market range: <4 – >8
This motherboard has 6 SATA 3 connectors, which is more than 53.5% of motherboards and equal to 31.2% 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
What reviewers say
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
1
Market range: <0 – >3
This motherboard has 1 PCIe 3.0x16 slots, which is more than 40.5% of motherboards and equal to 26.8% of motherboards.
runs at x4 mode
PCIe slot electrical configuration
x16/x4/x1
This motherboard splits its PCIe lanes as x16/x4/x1, which is more generous than 77.7% of Motherboards and the same as 5.9% 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)
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)
1
Market range: <0 – >2
This motherboard has 1 USB-C ports (rear I/O), which is more than 35.8% of motherboards and equal to 48.3% of motherboards.
Total USB-C ports (including headers)
2
Market range: <0 – >3
This motherboard has 2 USB-C ports (including headers), which is more than 51.7% of motherboards and equal to 33% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
1
Market range: <0 – >1
This motherboard has 1 USB 3.2 Gen2x2 ports (USB-C), which is more than 82.1% of motherboards and equal to 17.7% of motherboards.
Show more
What reviewers say
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
What reviewers say
Audio codec
Realtek ALC1200
This motherboard uses Realtek ALC1200, which is higher-end than 63.1% of Motherboards and the same as 2.4% 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
110 dB
Market range: <95 dB – >120 dB
This motherboard has an audio SNR of 110 dB, which is lower than that of 54.6% of motherboards and equal to that of 5.4% of motherboards.
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
5
Market range: <2 – >6
This motherboard has 5 3.5mm audio jacks, which is more than 50.6% of motherboards and equal to 36.3% of motherboards.
Show more
VRM phases
12+1+1
This motherboard has 12+1+1 VRM phases, which is more than 66.5% of motherboards and equal to 4.1% of motherboards.
N. of CPU power connectors
2
Market range: <1 – >2
This motherboard has 2 CPU power connectors, which is more than 54.9% of motherboards and equal to 44.8% of motherboards.
N. of fan headers
4
Market range: <3 – >8
This motherboard has 4 fan headers, which is fewer than 64.7% of motherboards and equal to 12.4% of motherboards.
Pump header
yes
This motherboard has a pump header. 22.1% of motherboards include this feature.
Pump header max current
3 A
Market range: <0 A – >3 A
This motherboard supports up to 3 A on the pump header, which is higher than that of 77.8% of motherboards and equal to that of 22.2% of motherboards.
Show more
What reviewers say

MSI MAG B660M Mortar DDR4 vs the average motherboard

246810TotalPlatformMemoryStorageExpansionPortsNetworkAudioPower & Cooling
  • 2 more USB 3.2 Gen2 ports
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (3 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    3 vs 1
  • 1 more USB 3.2 Gen2x2 USB-C ports
    This motherboard has more USB 3.2 Gen2x2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2x2 USB-C port/s.
    1 vs 0
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (LGA 1700 vs LGA 1151).
    LGA 1,700 vs LGA 1,151
  • 1 more CPU power connectors
    This motherboard has more CPU power connectors than the average motherboard (2 vs 1). The average motherboard has 1 CPU power connectors.
    2 vs 1
  • Integrated I/O shield
    This motherboard has an integrated I/O shield, while the average motherboard does not. 46.6% of motherboards include an integrated I/O shield.
    Pre-installed I/O shield.
  • 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
  • More capable onboard audio
    This motherboard has a higher-end audio codec than the average motherboard (Realtek ALC1200 vs Realtek ALC897).
    Realtek ALC1200 vs Realtek ALC897
  • More VRM phases
    This motherboard has more VRM phases than the average motherboard (12+1+1 vs 10). The average motherboard has 10 VRM phase/s.
    12+1+1 vs 10
  • 16.4% higher review score
    Reviews score
    8.5/ 10
    ✕
    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
    â–² Better than 68% of models

    80%

    8.3

    Average grade

    20%

    9.1

    Popularity

    Grades by review (10)
    7 reviews: 5 with a printed score, 2 estimated from the review. 3 video reviews, each counting half as much as a written test. Reviews count 20% of the overall score.
    Ratings from across the web count in the User score, not in this score.
    8.5 vs 7.3
  • 16.2% higher user score
    User score
    8.6/ 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–² Better than 61% of models

    70%

    8.8

    Rating

    30%

    8.1

    Popularity

    8.6 vs 7.4
  • More up-to-date socket
    This motherboard uses a more up-to-date socket than the average motherboard (LGA 1700 vs LGA 1151).
    LGA 1,700 vs LGA 1,151
  • Integrated I/O shield
    This motherboard has an integrated I/O shield, while the average motherboard does not. 46.6% of motherboards include an integrated I/O shield.
    Pre-installed I/O shield.
  • 13.5% higher maximum RAM speed
    This motherboard has a higher maximum RAM speed than the average motherboard (5,333 MT/s vs 4,699.5 MT/s). The average motherboard supports RAM speed of 4,699.5 MT/s.
    top speed with 1DPC 1R memory
    5,333 MT/s vs 4,699.5 MT/s
  • 2 more SATA 3 connectors
    This motherboard has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 SATA 3 connectors.
    6 vs 4
  • 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
  • More generous lane split
    This motherboard splits its PCIe lanes more generously than the average motherboard (x16/x4/x1 vs x16/x0/x4, x8/x8/x4).
    x16/x4/x1 vs x16/x0/x4, x8/x8/x4
  • 2 more USB 3.2 Gen2 ports
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (3 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    3 vs 1
  • 1 more USB 3.2 Gen2x2 USB-C ports
    This motherboard has more USB 3.2 Gen2x2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2x2 USB-C port/s.
    1 vs 0
  • 1 more USB4 or Thunderbolt headers
    This motherboard has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    1 vs 0
  • 1 more USB 3.2 Gen2 headers
    This motherboard has more USB 3.2 Gen2 headers than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2 header/s.
    10Gbps Type-C header
    1 vs 0
  • 1 more total USB-C connections
    This motherboard has more total USB-C connections than the average motherboard (2 vs 1). The average motherboard has 1 total USB-C connections.
    2 vs 1
  • 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)
  • More capable onboard audio
    This motherboard has a higher-end audio codec than the average motherboard (Realtek ALC1200 vs Realtek ALC897).
    Realtek ALC1200 vs Realtek ALC897
  • 2 more 3.5mm audio jacks
    This motherboard has more 3.5mm audio jacks than the average motherboard (5 vs 3). The average motherboard has 3 3.5mm audio jacks.
    5 vs 3
  • 1 more CPU power connectors
    This motherboard has more CPU power connectors than the average motherboard (2 vs 1). The average motherboard has 1 CPU power connectors.
    2 vs 1
  • More VRM phases
    This motherboard has more VRM phases than the average motherboard (12+1+1 vs 10). The average motherboard has 10 VRM phase/s.
    12+1+1 vs 10
  • 1 A higher pump header current limit
    This motherboard has a higher pump header current than the average motherboard (3 A vs 2 A). The average motherboard provides pump header current of 2 A.
    3 A vs 2 A
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (Intel B660 vs Intel B860).
    Intel B660 vs Intel B860
  • 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 4x4, 1x PCIe 4x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4).
    1x PCIe 4.0x4, 1x PCIe 4.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • No BIOS flashback support
    This motherboard does not support BIOS flashback, while the average motherboard does. 51.3% of motherboards support BIOS flashback.
    requires CPU/RAM
  • 4 fewer USB 3.2 Gen1 ports
    This motherboard has fewer USB 3.2 Gen1 ports than the average motherboard (0 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    0 vs 4
  • 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.
  • 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.
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (Intel B660 vs Intel B860).
    Intel B660 vs Intel B860
  • No BIOS flashback support
    This motherboard does not support BIOS flashback, while the average motherboard does. 51.3% of motherboards support BIOS flashback.
    requires CPU/RAM
  • 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
  • No automatic overclocking
    This motherboard does not support automatic overclocking, while the average motherboard does. 74.1% of motherboards support automatic overclocking.
  • 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 4x4, 1x PCIe 4x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4).
    1x PCIe 4.0x4, 1x PCIe 4.0x4/SATA 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.
  • 4 fewer USB 3.2 Gen1 ports
    This motherboard has fewer USB 3.2 Gen1 ports than the average motherboard (0 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    0 vs 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.
  • 5 dB lower audio SNR
    This motherboard has a lower audio SNR than the average motherboard (110 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    110 dB vs 115 dB
  • 1.5 fewer fan headers
    This motherboard has fewer fan headers than the average motherboard (4 vs 5.5). The average motherboard has 5.5 fan header/s.
    4 vs 5.5

Video reviews

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

7.0
Tech Critter
≈ estimated
19/03/2022
Hands-on review · temperatures, gaming and memory tests
Verdict
MSI MAG B660M Mortar DDR4 is hard to recommend for enthusiasts but a reasonable plug-and-play board for newcomers to 12th gen.
9.0
Dannys Tech Channel
≈ estimated
28/05/2022
Unboxing and walk-around · quick overview
Verdict
MSI MAG B660M Mortar DDR4 offers a lot for a budget build, with only a minor M.2 screw downside.
8.0
Gear Seekers
≈ estimated
04/01/2022
First look · unboxing and feature overview
Verdict
MSI MAG B660M Mortar DDR4 packs a lot in for a micro-ATX board and looks promising for a long-term build, though it is not yet tested.

Expert reviews

In-depth analysis and verdict from leading tech publications

8.0
tomshardware.com
✓ explicit
04/01/2022
Benchmark review · Micro-ATX B660
Verdict
The MSI MAG B660M Mortar WiFi DDR4 is a fully featured Micro-ATX board that performs well in single-GPU builds, but it has just two M.2 sockets.
8.1
pcgamer.com
✓ explicit
31/01/2022
Gaming review · Mainstream B660 board
Verdict
The MSI MAG B660M Mortar WiFi DDR4 is a sensible mainstream gaming board that runs a stock Core i9-12900K well, but it skips PCIe 5.0 and overclocking.
9.0
gadgetpilipinas.net
≈ estimated
14/01/2022
Lab test · Micro-ATX B660
Verdict
The MSI MAG B660M Mortar WiFi DDR4 is an entry-level way into Alder Lake whose power section stays cool at stock, but most rear ports are not USB 3.0.
8.8
pcmasters.de
✓ explicit
27/08/2022
Hardware test · Micro-ATX DDR4 board
Verdict
The MSI MAG B660M Mortar DDR4 is a compact, well-finished board whose power stages stay cool under load, but it has no RGB lighting of its own.
8.0
clubic.com
✓ explicit
19/01/2022
Lab test · Alder Lake B660
Verdict
The MSI MAG B660M Mortar WiFi DDR4 is a simple, well-equipped micro-ATX board for affordable Alder Lake builds, but it lacks PCIe 5.0 and DDR5 support.
8.7
charlestech.fr
✓ explicit
26/05/2024
Hands-on review · Compact Micro-ATX
Verdict
The MSI MAG B660M Mortar WiFi DDR4 is a compact Micro-ATX board that suits Alder Lake builds without a high-end chipset, but it lacks PCIe Gen 5.
8.0
razorman.net
≈ estimated
30/01/2022
Lab test · DDR4 micro-ATX
Verdict
The MSI MAG B660M Mortar DDR4 is a well-cooled micro-ATX board that gets close to Z690 speeds with a Core i5-12600K, but it cannot overclock the CPU.

Third-party reviews

What customers like about MSI MAG B660M Mortar DDR4

  • Robust VRM and power delivery capable of handling high-end CPUs like the i9-12900K at stock settings
  • Excellent thermal management with large, effective heatsinks for VRMs and both M.2 slots
  • High-speed connectivity including 2.5G LAN, WiFi 6, and a 20Gbps USB Type-C port
  • Solid build quality and clean, 'military' aesthetic with a pre-installed IO shield
  • User-friendly BIOS with great fan control and clear markings for easier DIY building
  • DDR4 support makes it a more cost-effective choice for budget-conscious builds compared to DDR5 models

What customers don't like about MSI MAG B660M Mortar DDR4

  • No support for CPU overclocking (standard for the B660 chipset)
  • Lack of PCIe 5.0 support, which may limit future-proofing for next-gen GPUs
  • Relatively high price point that approaches some entry-level Z690 motherboards
  • Limited number of fan headers (only 4) compared to previous generations or competitors
  • Inconvenient placement for some headers, such as CHA_FAN1
  • Lower-tier audio codec (ALC1200 or ALC897 depending on specific sub-model) compared to premium boards

Verdict

The MSI MAG B660M Mortar DDR4 is a micro-ATX motherboard designed for Intel's 12th, 13th, and 14th Gen processors on the LGA 1700 socket, featuring a robust 12+1+1 duet rail power system with 60A power stages and an extended heatsink design for stable performance. Key specifications include four DDR4 DIMM slots supporting up to 128GB at overclocked speeds of 4800+ MHz, two PCIe 4.0 x4 M.2 slots with Shield Frozr thermal protection, and a primary PCIe 4.0 x16 slot reinforced with Steel Armor. Notable pros include its high-speed connectivity with 2.5G LAN, a rear USB 3.2 Gen 2x2 Type-C port (20Gbps), and a pre-installed I/O shield that simplifies installation. However, users should note that the B660 chipset does not support CPU overclocking, and while highly capable, the VRM temperatures can run higher than average under extreme loads compared to premium Z-series alternatives.

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