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 X299-A II review: 109 specs compared

Avg. price:~£260CPU socket:?Chipset:Intel X299Form factor:ATX

ASUS Prime X299-A II Review: Compare 109 technical specifications to see how this product ranks in the Motherboards category and whether it is worth buying.

ASUS Prime X299-A II
7.2/10

Overall score

Score
7.2/ 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 61% of models
Score components

40%

6.9

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%

6.9

User score

â–²Better than 61% of motherboards
7.8

Value for money

Value for money
7.8/ 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 53% of models
Score components

70%

7.2

Overall score

30%

9.2

Price

â–²Better than 53%
6.9

Technical score

Technical score
6.9/ 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 66% of models
Score components

19%

8.9

Memory

16%

8.4

Platform

16%

6.9

Storage

15%

3.4

Network

13%

6.4

Ports

8%

3.9

Expansion

8%

8.6

Power & Cooling

5%

9.4

Audio

â–²Better than 66%
?

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
6.9

User score

User score
6.9/ 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 66% of models

6.9

Mark 8.2 is below the typical mark 8.4 of this category, so it cannot lift the score above the technical score

70%

8.1

Rating

30%

8.5

Popularity

â–¼Worse than 66%
?

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
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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.
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Technical Specifications of motherboard ASUS Prime X299-A II

Technical score
Technical score
6.9/ 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 66% of models
Score components:

19%

8.9

Memory

16%

8.4

Platform

16%

6.9

Storage

15%

3.4

Network

13%

6.4

Ports

8%

3.9

Expansion

8%

8.6

Power & Cooling

5%

9.4

Audio

6.9
Reviews score
7.8
User score
6.9
List score
?
Value for money
Value for money
7.8/ 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 53% of models
Score components:

70%

7.2

Overall score

30%

9.2

Price

7.8
CPU socket
?
CPU platform
Intel
Chipset
Intel X299
This motherboard uses Intel X299, which is less capable than 65.8% of Motherboards and as capable as 2% of Motherboards.
Form factor
ATX
Integrated graphics support
yes
This motherboard supports integrated graphics. 10.2% of motherboards support this feature.
Show more
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
8
Market range: <2 – >4
This motherboard has 8 Memory slots, which is more than 93.9% of motherboards and equal to 5.8% of motherboards.
Maximum memory capacity
256 GB
Market range: <32 GB – >256 GB
This motherboard supports up to 256 GB of memory, which is more than 82.5% of motherboards and equal to 16.7% of motherboards.
Memory channels
?
Maximum RAM speed
4,266 MT/s
Market range: <2k MT/s – >8k MT/s
This motherboard supports memory speeds up to 4,266 MT/s, which is lower than that of 54.7% of motherboards and equal to that of 0.8% of motherboards.
Show more
N. of M.2 sockets
?
M.2 slot interface per slot
?
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
0/1/5/10
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
yes
This motherboard supports NVMe RAID. 40.2% 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
0
Market range: <0 – >1
This motherboard has 0 PCIe 4.0x16 slots, which is fewer than 44.8% of motherboards and equal to 55.2% of motherboards.
N. of PCIe 3.0 x16 slots
?
PCIe slot electrical configuration
?
PCIe bifurcation support
yes
This motherboard supports PCIe bifurcation. 40.3% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
9
Market range: <6 – >10
This motherboard has 9 USB ports (rear I/O), which is more than 70.9% of motherboards and equal to 4.7% of motherboards.
Total USB ports (including headers)
?
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)
?
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
1 Gbps
Market range: <1 Gbps – >2.5 Gbps
This motherboard supports LAN speeds up to 1 Gbps, which is lower than that of 51.1% of motherboards and equal to that of 48.9% of motherboards.
LAN controller
?
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 S1220A
This motherboard uses Realtek S1220A, which is higher-end than 85.8% of Motherboards and the same as 1.2% 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
120 dB
Market range: <95 dB – >120 dB
This motherboard has an audio SNR of 120 dB, which is higher than that of 55.6% of motherboards and equal to that of 41% of motherboards.
Headphone amp support
?
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
?
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
?
Pump header
yes
This motherboard has a pump header. 22.1% of motherboards include this feature.
Pump header max current
?
Show more

ASUS Prime X299-A II vs the average motherboard

246810TotalPlatformMemoryStorageExpansionPortsNetworkAudioPower & Cooling
  • 2x more maximum memory capacity
    This motherboard has more maximum memory capacity than the average motherboard (256 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    256 GB vs 128 GB
  • 4 more memory slots
    This motherboard has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
    8 vs 4
  • More capable onboard audio
    This motherboard has a higher-end audio codec than the average motherboard (Realtek S1220A vs Realtek ALC897).
    Realtek S1220A vs Realtek ALC897
  • 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.
  • 1 more USB 3.2 Gen2 USB-C ports
    This motherboard has more USB 3.2 Gen2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2 USB-C port/s.
    1 vs 0
  • Includes POST code display
    This motherboard has a POST code display, while the average motherboard does not. 26.7% of motherboards include a POST code display.
  • 1 more rear USB ports
    This motherboard has more rear USB ports than the average motherboard (9 vs 8). The average motherboard has 8 rear USB port/s.
    9 vs 8
  • 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.
  • Includes POST code display
    This motherboard has a POST code display, while the average motherboard does not. 26.7% of motherboards include a POST code display.
  • 2x more maximum memory capacity
    This motherboard has more maximum memory capacity than the average motherboard (256 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    256 GB vs 128 GB
  • 4 more memory slots
    This motherboard has more memory slots than the average motherboard (8 vs 4). The average motherboard has 4 memory slot/s.
    8 vs 4
  • 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
  • 1 more USB 3.2 Gen2 USB-C ports
    This motherboard has more USB 3.2 Gen2 USB-C ports than the average motherboard (1 vs 0). The average motherboard has 0 USB 3.2 Gen2 USB-C port/s.
    1 vs 0
  • 1 more rear USB ports
    This motherboard has more rear USB ports than the average motherboard (9 vs 8). The average motherboard has 8 rear USB port/s.
    9 vs 8
  • 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.
    1 vs 0
  • More capable onboard audio
    This motherboard has a higher-end audio codec than the average motherboard (Realtek S1220A vs Realtek ALC897).
    Realtek S1220A vs Realtek ALC897
  • 5 dB higher audio SNR
    This motherboard has a higher audio SNR than the average motherboard (120 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    120 dB vs 115 dB
  • 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
  • 1 more RGB headers
    This motherboard has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
    2 vs 1
  • Includes onboard RGB lighting
    This motherboard has onboard RGB lighting, while the average motherboard does not. 50% of motherboards include onboard RGB lighting.
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (Intel X299 vs Intel B860).
    Intel X299 vs Intel B860
  • 60% lower LAN speed
    This motherboard has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    1 Gbps vs 2.5 Gbps
  • 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.
  • 1 fewer DisplayPort outputs
    This motherboard has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
    0 vs 1
  • 1 fewer ARGB headers
    This motherboard has fewer ARGB headers than the average motherboard (1 vs 2). The average motherboard has 2 ARGB header/s.
    1 vs 2
  • 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
  • 73.3% more expensive
    ASUS Prime X299-A II is more expensive than the average motherboard (£260 vs £150).
    £260 vs £150
  • 73.3% more expensive
    ASUS Prime X299-A II is more expensive than the average motherboard (£260 vs £150).
    £260 vs £150
  • 6.8% lower user score
    User score
    6.9/ 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 66% of models

    6.9

    Mark 8.2 is below the typical mark 8.4 of this category, so it cannot lift the score above the technical score

    70%

    8.1

    Rating

    30%

    8.5

    Popularity

    6.9 vs 7.4
  • More basic chipset
    This motherboard uses a more basic chipset than the average motherboard (Intel X299 vs Intel B860).
    Intel X299 vs Intel B860
  • 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 DisplayPort outputs
    This motherboard has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
    0 vs 1
  • 60% lower LAN speed
    This motherboard has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    1 Gbps vs 2.5 Gbps
  • 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.
  • 1 fewer ARGB headers
    This motherboard has fewer ARGB headers than the average motherboard (1 vs 2). The average motherboard has 2 ARGB header/s.
    1 vs 2

Video reviews

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

Not graded
Not graded

Third-party reviews

What customers like about ASUS Prime X299-A II

  • Eight memory slots take up to 256 GB, so you can grow later.
  • Eight SATA 3 connectors suit a large storage setup.
  • A POST code display points toward the fault when the system will not start.
  • Two RGB headers let you add lighting strips.
  • The built-in I/O shield saves fitting a separate plate.
  • NVMe RAID support lets several SSDs work together in one array.

What customers don't like about ASUS Prime X299-A II

  • No HDMI outputs, so an HDMI screen cannot connect to the board.
  • No Wi-Fi, so wireless needs an add-on card.
  • No dual BIOS, so there is no backup copy of the firmware.
  • Only one RJ45 port, so there is no second wired network connection.

Verdict

Builders who need lots of memory and drive space should look hard at the ASUS Prime X299-A II. Its eight memory slots take up to 256 GB, so you can start small and add sticks later. Eight SATA 3 connectors leave room for a large set of hard drives and SSDs. A POST code display helps when the system will not start, because the code points toward the likely fault. Two RGB headers let you add lighting strips to the case, and the built-in I/O shield means no separate plate to fit. The clear drawback is the lack of HDMI outputs, which matters if you want to use the built-in graphics with an HDMI screen. It suits a premium workstation or a storage-heavy build, where capacity matters more than the newest connectors and speeds.

Compare ASUS Prime X299-A II with other products in the Motherboards category

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