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ASUS Sabertooth 990FX Review | 107 Data compared

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  • Avg. price in UK: ~£170
  • Avg. price in US: ~$190
  • CPU socket: AM3+
  • Chipset: AMD 990FX
  • Form factor: ATX

ASUS Sabertooth 990FX review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

4.9

Overall score

What it is: An overall evaluation of the motherboard's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best motherboards on the market.

Score components:

90.0%

4.6

Technical Score

10.0%

7.8

User score

Poor
4.6

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

4.0

Memory

16.0%

4.8

Platform & Features

16.0%

3.6

Storage

15.0%

5.1

Network

13.0%

5.0

Ports & USB

8.0%

4.4

Expansion

8.0%

4.8

Power & Cooling

5.0%

6.8

Audio

Poor
7.8

User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

7.8

User reviews

30.0%

7.9

Popularity

User score:
United Kingdom
amazon
3.8
(101)
amazon
4.0
(99)
United States
Amazon_logo.png
4.0
(116)
Amazon_logo.png
3.7
(28)

(Reviews last updated: May 2026)

Very good
  • 3.1
    Gaming

    Score components:

    28.0%

    5.8

    VRM phases

    22.0%

    1.0

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    1.4

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

  • asus-sabertooth-990fx
asus-sabertooth-990fx

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Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The ASUS Sabertooth 990FX is an ATX motherboard built on the AMD 990FX/SB950 chipset, designed for the AM3+ socket with support for AMD FX, Phenom II, and Athlon II processors. It features a robust 8+2 phase digital power design and 'TUF' military-grade components for extreme durability, alongside four DDR3 DIMM slots supporting up to 32GB of memory and multiple PCIe 2.0 x16 slots for 3-way NVIDIA SLI or AMD CrossFireX. Main pros include its exceptional thermal management via CeraM!X ceramic-coated heatsinks and the TUF Thermal Radar monitoring system, as well as a highly stable platform for overclocking backed by a 5-year warranty. On the downside, the board lacks native PCIe 3.0 support, and some users have noted potential clearance issues between large CPU coolers and the primary RAM slots.

Technical Specifications of ASUS Sabertooth 990FX

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

4.0

Memory

16.0%

4.8

Platform & Features

16.0%

3.6

Storage

15.0%

5.1

Network

13.0%

5.0

Ports & USB

8.0%

4.4

Expansion

8.0%

4.8

Power & Cooling

5.0%

6.8

Audio

4.6
ASUS Sabertooth 990FX has a technical score of 4.59 points, which is lower than that of 87.3% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

7.8

User reviews

30.0%

7.9

Popularity

User score:
United Kingdom
amazon
3.8
(101)
amazon
4.0
(99)
United States
Amazon_logo.png
4.0
(116)
Amazon_logo.png
3.7
(28)

(Reviews last updated: May 2026)

7.8
ASUS Sabertooth 990FX has a user score of 7.82 points, which is lower than that of 56.5% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the motherboard.
When it matters: When you prefer a motherboard that has already been bought and reviewed by many other users.
7.9
ASUS Sabertooth 990FX has a popularity of 7.9 points, which is higher than 73.2% of products in this category.
Ratio quality/price

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 components:

60.0%

4.9

Overall score

40.0%

9.6

Price

6.3
ASUS Sabertooth 990FX has a quality-to-price ratio of 6.3 points, which is lower than 85.5% of products in this category.
Brand name
What it is: The brand that makes the motherboard.
When it matters: When you have a brand preference for support, BIOS, or build quality.

Importance: MEDIUM

Asus
CPU socket
What it is: The socket type the motherboard is built to support.
When it matters: When you need the motherboard to match a specific CPU.

Importance: HIGH

AM3+
ASUS Sabertooth 990FX uses the AM3+ CPU socket, which is less advanced than that of 96.9% of motherboards and equal to that of 0.7% of motherboards.
CPU platform

Importance: MEDIUM

AMD
Chipset
What it is: The chipset that defines the motherboard platform and many of its features.
When it matters: When you compare platform features, connectivity, and CPU support.

Importance: HIGH

AMD 990FX
ASUS Sabertooth 990FX uses the AMD 990FX chipset, which is less advanced than that of 90.5% of motherboards and equal to that of 0.5% of motherboards.
Paired with SB950 southbridge.
Form factor
What it is: The physical size standard of the motherboard, such as ATX or Micro-ATX.
When it matters: When you need the board to fit a specific case size.

Importance: HIGH

ATX
ASUS Sabertooth 990FX has the ATX form factor, which is more versatile than that of 47.8% of motherboards and equal to that of 52.2% of motherboards.
Show more
DDR memory version
What it is: The RAM generation the motherboard supports, such as DDR4 or DDR5.
When it matters: When you need the board to match a certain memory platform.

Importance: HIGH

Good value: DDR5

DDR3
ASUS Sabertooth 990FX uses DDR3 memory, which is older than that of 86.6% of motherboards and equal to that of 13.4% of motherboards.
Memory slots
What it is: The number of RAM slots on the motherboard.
When it matters: When you want more room for future memory upgrades.

Importance: HIGH

Good value: >=4

4
ASUS Sabertooth 990FX has 4 Memory slots, which is more than 21.5% of motherboards and equal to 72.5% of motherboards.
Maximum memory capacity
What it is: The largest total amount of RAM the motherboard supports.
When it matters: When you plan a build with very high memory capacity.

Importance: HIGH

Good value: >=128 GB

32 GB
ASUS Sabertooth 990FX supports up to 32 GB of memory, which is less than 87% of motherboards and equal to 11.2% of motherboards.
Memory channels
What it is: The memory channel configuration supported by the motherboard platform.
When it matters: When memory bandwidth matters for your build.

Importance: MEDIUM

2
ASUS Sabertooth 990FX supports 2 memory channels, which is more than 0.2% of motherboards and equal to 92.5% of motherboards.
Maximum RAM speed
What it is: The highest officially supported memory speed for the motherboard.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=6400 MT/s

1,866 MT/s
ASUS Sabertooth 990FX supports memory speeds up to 1866 MT/s, which is lower than that of 91.5% of motherboards and equal to that of 1.5% of motherboards.
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N. of M.2 sockets
What it is: The number of M.2 slots available on the motherboard.
When it matters: When you want room for more NVMe or M.2 drives.

Importance: HIGH

Good value: >=3

0
ASUS Sabertooth 990FX has 0 M.2 sockets, which is fewer than 88.4% of motherboards and equal to 11.7% of motherboards.
M.2 slot interface per slot
What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
When it matters: When you want to check which drives each M.2 slot can use.

Importance: HIGH

N/A
N. of SATA 3 connectors
What it is: The number of SATA 6Gb/s connectors on the motherboard.
When it matters: When you plan to connect multiple SATA drives.

Importance: MEDIUM

Good value: >=6

8
ASUS Sabertooth 990FX has 8 SATA 3 connectors, which is more than 85.5% of motherboards and equal to 11.2% of motherboards.
Supported RAID levels
What it is: The RAID modes officially supported by the motherboard storage platform.
When it matters: When you plan to use multiple drives in a RAID setup.

Importance: MEDIUM

0/1/5/10
ASUS Sabertooth 990FX supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
JBOD excluded from RAID-level set
NVMe RAID support
What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
When it matters: When you plan to use multiple NVMe drives in RAID.

Importance: LOW

no
ASUS Sabertooth 990FX does not support NVMe RAID. 59.8% of motherboards support this feature.
Show more
N. of PCIe 5.0 x16 slots
What it is: The number of PCIe 5.0 x16 physical slots on the motherboard.
When it matters: When you want the newest high-bandwidth expansion slots.

Importance: HIGH

Good value: >=1

0
ASUS Sabertooth 990FX has 0 PCIe 5.0x16 slots, which is equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
When it matters: When you want more room for modern expansion cards.

Importance: HIGH

Good value: >=1

0
ASUS Sabertooth 990FX has 0 PCIe 4.0x16 slots, which is equal to 55.6% of motherboards.
N. of PCIe 3.0 x16 slots
What it is: The number of PCIe 3.0 x16 physical slots on the motherboard.
When it matters: When you need more full-length expansion slots.

Importance: MEDIUM

0
ASUS Sabertooth 990FX has 0 PCIe 3.0x16 slots, which is fewer than 59.5% of motherboards and equal to 40.5% of motherboards.
PCIe slot electrical configuration
What it is: The actual lane wiring used by the motherboard PCIe slots.
When it matters: When you need to know how much bandwidth each slot really gets.

Importance: HIGH

x16/x0/x4, x8/x8/x4
ASUS Sabertooth 990FX uses x16/x0/x4, x8/x8/x4 for PCIe slot electrical configuration, which is more flexible than that of 56.3% of motherboards and equal to that of 11.7% of motherboards.
PCIe bifurcation support
What it is: Shows whether the board can split PCIe lanes across multiple devices from one slot or link.
When it matters: When you plan multi-SSD adapters or more advanced expansion setups.

Importance: MEDIUM

yes
ASUS Sabertooth 990FX supports PCIe bifurcation. 39.1% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
What it is: The total number of rear USB ports available on the motherboard.
When it matters: When you use many USB devices directly from the back of the PC.

Importance: MEDIUM

Good value: >=8

12
ASUS Sabertooth 990FX has 12 USB ports (rear I/O), which is more than 93% of motherboards and equal to 5.5% of motherboards.
Total USB ports (including headers)
What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
When it matters: When you want to know the board's full USB expansion potential.

Importance: MEDIUM

Good value: >=14

18
ASUS Sabertooth 990FX has 18 USB ports (including headers), which is more than 82.9% of motherboards and equal to 4.8% of motherboards.
Total USB-C ports (rear I/O)
What it is: The total number of rear USB-C ports on the motherboard.
When it matters: When you want more USB-C devices connected without adapters.

Importance: MEDIUM

Good value: >=1

1
ASUS Sabertooth 990FX has 1 USB-C ports (rear I/O), which is more than 35.4% of motherboards and equal to 48.8% of motherboards.
Total USB-C ports (including headers)
What it is: The total number of USB-C ports supported when rear ports and internal headers are counted together.
When it matters: When you want more USB-C connectivity across the whole build.

Importance: MEDIUM

Good value: >=2

0
ASUS Sabertooth 990FX has 0 USB-C ports (including headers), which is fewer than 69.6% of motherboards and equal to 30.4% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
What it is: The number of rear USB 3.2 Gen2x2 Type-C ports on the motherboard.
When it matters: When you want very fast USB-C connectivity on the rear I/O.

Importance: HIGH

Good value: >=1

0
ASUS Sabertooth 990FX has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
Show more
LAN speed
What it is: The maximum wired Ethernet speed supported by the motherboard.
When it matters: When you want faster wired networking.

Importance: HIGH

Good value: 2.5GbE

1 Gbps
ASUS Sabertooth 990FX supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.1% of motherboards.
LAN controller
What it is: The model of onboard Ethernet controller used by the motherboard.
When it matters: When you compare networking hardware quality and features.

Importance: MEDIUM

Realtek RTL8111F
ASUS Sabertooth 990FX uses the Realtek RTL8111F LAN controller, which is less advanced than that of 88.2% of motherboards and equal to that of 1% of motherboards.
N. of RJ45 ports
What it is: The number of wired Ethernet ports on the motherboard.
When it matters: When you need one or more wired network connections.

Importance: LOW

1
ASUS Sabertooth 990FX has 1 RJ45 ports, which is equal to 85.6% of motherboards.
Wi-Fi connectivity
What it is: Shows whether the motherboard includes onboard Wi-Fi hardware instead of requiring a separate adapter.
When it matters: When you want wireless networking without adding an extra card.

Importance: MEDIUM

no
ASUS Sabertooth 990FX does not support Wi-Fi connectivity. 49.1% of motherboards support this feature.
Wi-Fi version
What it is: The supported Wi-Fi generation, such as Wi-Fi 6 or Wi-Fi 7.
When it matters: When you care about wireless speed and router compatibility.

Importance: MEDIUM

Good value: Wi-Fi 6E (802.11ax)

N/A
Show more
Audio codec
What it is: The onboard audio codec used by the motherboard.
When it matters: When sound quality from the built-in audio matters to you.

Importance: MEDIUM

Realtek ALC892
ASUS Sabertooth 990FX uses the Realtek ALC892 audio codec, which is less advanced than that of 80.1% of motherboards and equal to that of 8.5% of motherboards.
Audio channels
What it is: The audio channel configuration supported by the onboard sound solution.
When it matters: When you want surround sound from the motherboard audio outputs.

Importance: LOW

Good value: 7.1

7.1
ASUS Sabertooth 990FX offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
Audio SNR
What it is: The signal-to-noise ratio of the onboard audio solution.
When it matters: When you care about cleaner onboard audio output.

Importance: MEDIUM

Good value: >=120 dB

95 dB
ASUS Sabertooth 990FX has an audio SNR of 95 dB, which is lower than that of 84.2% of motherboards and equal to that of 10.1% of motherboards.
Headphone amp support
What it is: Shows whether the onboard audio path includes dedicated headphone amplification for harder-to-drive headsets.
When it matters: When you use harder-to-drive headphones from the onboard audio.

Importance: LOW

?
N. of 3.5mm audio jacks
What it is: The number of rear 3.5mm audio jacks on the motherboard.
When it matters: When you want more analog audio connection options.

Importance: LOW

Good value: >=5

6
ASUS Sabertooth 990FX has 6 3.5mm audio jacks, which is more than 86.6% of motherboards and equal to 13.4% of motherboards.
Show more
VRM phases
What it is: The number of power-delivery phases used by the motherboard VRM.
When it matters: When you care about CPU power delivery and overclocking headroom.

Importance: HIGH

Good value: >=12

8+2
ASUS Sabertooth 990FX has 8+2 VRM phases, which is fewer than 59.1% of motherboards and equal to 4.5% of motherboards.
N. of CPU power connectors
What it is: The number of CPU power connectors on the motherboard.
When it matters: When you care about power delivery for higher-end CPUs.

Importance: HIGH

Good value: >=2

1
ASUS Sabertooth 990FX has 1 CPU power connectors, which is equal to 54.5% of motherboards.
N. of fan headers
What it is: The number of headers available for case or CPU fans.
When it matters: When your build uses several fans.

Importance: MEDIUM

Good value: >=6

6
ASUS Sabertooth 990FX has 6 fan headers, which is more than 50.3% of motherboards and equal to 22.3% of motherboards.
Pump header
What it is: Shows whether the motherboard includes a dedicated header designed for a liquid-cooling pump.
When it matters: When you build with an AIO or custom liquid cooling loop.

Importance: MEDIUM

no
ASUS Sabertooth 990FX does not have a pump header. 77% of motherboards include this feature.
Pump header max current
What it is: The maximum current the dedicated pump header can supply.
When it matters: When you want to make sure the pump header can power your cooling setup.

Importance: LOW

Good value: >=2 A

0 A
ASUS Sabertooth 990FX supports up to 0 A on the pump header, which is lower than that of 74.3% of motherboards and equal to that of 25.7% of motherboards.
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ASUS Sabertooth 990FX vs the average motherboard

  • 4 more rear USB ports
    ASUS Sabertooth 990FX has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.
    What it is: The total number of rear USB ports available on the motherboard.
    When it matters: When you use many USB devices directly from the back of the PC.

    Importance: MEDIUM

    Good value: >=8

    ASUS Sabertooth 990FX has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.12 vs 8
  • 1 more PCI slots
    ASUS Sabertooth 990FX has more PCI slots than the average motherboard (1 vs 0). The average motherboard has 0 PCI slot/s.
    What it is: The number of legacy PCI slots on the motherboard.
    When it matters: When you need compatibility with older expansion cards.

    Importance: LOW

    ASUS Sabertooth 990FX has more PCI slots than the average motherboard (1 vs 0). The average motherboard has 0 PCI slot/s.1 vs 0
  • 3 more total USB connections
    ASUS Sabertooth 990FX has more total USB connections than the average motherboard (18 vs 15). The average motherboard has 15 total USB connections.
    What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
    When it matters: When you want to know the board's full USB expansion potential.

    Importance: MEDIUM

    Good value: >=14

    ASUS Sabertooth 990FX has more total USB connections than the average motherboard (18 vs 15). The average motherboard has 15 total USB connections.18 vs 15
  • 4 more PCIe 2.0x16 slots
    ASUS Sabertooth 990FX has more PCIe 2.0x16 slots than the average motherboard (4 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.
    What it is: The number of PCIe 2.0 x16 physical slots on the motherboard.
    When it matters: When you compare older full-length expansion options.

    Importance: LOW

    ASUS Sabertooth 990FX has more PCIe 2.0x16 slots than the average motherboard (4 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.4 vs 0
  • 2 more SATA 2 connectors
    ASUS Sabertooth 990FX has more SATA 2 connectors than the average motherboard (2 vs 0). The average motherboard has 0 SATA 2 connectors.
    What it is: The number of SATA 3Gb/s connectors on the motherboard.
    When it matters: When you still use older SATA devices.

    Importance: LOW

    ASUS Sabertooth 990FX has more SATA 2 connectors than the average motherboard (2 vs 0). The average motherboard has 0 SATA 2 connectors.2 vs 0
  • 4 more SATA 3 connectors
    ASUS Sabertooth 990FX has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
    What it is: The number of SATA 6Gb/s connectors on the motherboard.
    When it matters: When you plan to connect multiple SATA drives.

    Importance: MEDIUM

    Good value: >=6

    ASUS Sabertooth 990FX has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.8 vs 4
  • Supports ECC memory
    ASUS Sabertooth 990FX supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
    supports ECC unbuffered memory.
    What it is: Shows whether the motherboard can work with ECC memory on supported CPU and platform combinations.
    When it matters: When stability and error correction matter in your system.

    Importance: MEDIUM

    ASUS Sabertooth 990FX supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • More flexible PCIe lane configuration
    ASUS Sabertooth 990FX has more flexible PCIe lane configuration than the average motherboard (x16/x0/x4, x8/x8/x4 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
    What it is: The actual lane wiring used by the motherboard PCIe slots.
    When it matters: When you need to know how much bandwidth each slot really gets.

    Importance: HIGH

    ASUS Sabertooth 990FX has more flexible PCIe lane configuration than the average motherboard (x16/x0/x4, x8/x8/x4 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.x16/x0/x4, x8/x8/x4 vs x16/x1
  • Supports ECC memory
    ASUS Sabertooth 990FX supports ECC memory, while the average motherboard does not. 20.9% of motherboards support ECC memory.
  • 2 more SATA 2 connectors
    ASUS Sabertooth 990FX has more SATA 2 connectors than the average motherboard (2 vs 0). The average motherboard has 0 SATA 2 connectors.
  • 4 more SATA 3 connectors
    ASUS Sabertooth 990FX has more SATA 3 connectors than the average motherboard (8 vs 4). The average motherboard has 4 SATA 3 connectors.
  • 1 more PCI slots
    ASUS Sabertooth 990FX has more PCI slots than the average motherboard (1 vs 0). The average motherboard has 0 PCI slot/s.
  • 4 more PCIe 2.0x16 slots
    ASUS Sabertooth 990FX has more PCIe 2.0x16 slots than the average motherboard (4 vs 0). The average motherboard has 0 PCIe 2.0x16 slot/s.
  • More flexible PCIe lane configuration
    ASUS Sabertooth 990FX has more flexible PCIe lane configuration than the average motherboard (x16/x0/x4, x8/x8/x4 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 4 more rear USB ports
    ASUS Sabertooth 990FX has more rear USB ports than the average motherboard (12 vs 8). The average motherboard has 8 rear USB port/s.
  • 3 more total USB connections
    ASUS Sabertooth 990FX has more total USB connections than the average motherboard (18 vs 15). The average motherboard has 15 total USB connections.
  • 2 more eSATA ports
    ASUS Sabertooth 990FX has more eSATA ports than the average motherboard (2 vs 0). The average motherboard has 0 eSATA port/s.
  • 6 more USB 2.0 ports
    ASUS Sabertooth 990FX has more USB 2.0 ports than the average motherboard (8 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • 1 more 3.5mm audio jacks
    ASUS Sabertooth 990FX has more 3.5mm audio jacks than the average motherboard (6 vs 5). The average motherboard has 5 3.5mm audio jacks.
  • 1 more fan headers
    ASUS Sabertooth 990FX has more fan headers than the average motherboard (6 vs 5). The average motherboard has 5 fan header/s.

Total
Memory
Storage
Expansion
Ports & USB
Audio
Power & Cooling
  • More basic motherboard chipset
    ASUS Sabertooth 990FX has more basic motherboard chipset than the average motherboard (AMD 990FX vs Intel B860). The average motherboard uses Intel B860 chipset.
    Paired with SB950 southbridge.
  • No BIOS flashback support
    ASUS Sabertooth 990FX does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • No integrated graphics support
    ASUS Sabertooth 990FX does not support integrated graphics, while the average motherboard does. 89.4% of motherboards support integrated graphics.
  • Older CPU socket
    ASUS Sabertooth 990FX has older CPU socket than the average motherboard (AM3+ vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Not ready for Windows 11
    ASUS Sabertooth 990FX is not ready for Windows 11, while the average motherboard is. 77.1% of motherboards are ready for Windows 11.
  • 10 years older release date
    ASUS Sabertooth 990FX is older than the average motherboard (2,011 vs 2,021). The average motherboard was released in 2,021.
    June 2011
  • Narrower Windows support
    ASUS Sabertooth 990FX has narrower Windows support than the average motherboard (Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP vs Windows 11, Windows 10). The average motherboard supports Windows 11, Windows 10.
  • 75% less maximum memory capacity
    ASUS Sabertooth 990FX has fewer maximum memory capacity than the average motherboard (32 GB vs 128 GB). The average motherboard supports 128 GB of memory.
  • Older DDR memory generation
    ASUS Sabertooth 990FX has older DDR memory generation than the average motherboard (DDR3 vs DDR4). The average motherboard supports DDR4 memory.
  • 59.4% lower maximum RAM speed
    ASUS Sabertooth 990FX has a lower maximum RAM speed than the average motherboard (1,866 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • 56.8% lower overclocked RAM speed
    ASUS Sabertooth 990FX has a lower overclocked RAM speed than the average motherboard (2,133 MT/s vs 4,933 MT/s). The average motherboard supports overclocked RAM speed of 4,933 MT/s.
  • 2 fewer M.2 sockets
    ASUS Sabertooth 990FX has fewer M.2 sockets than the average motherboard (0 vs 2). The average motherboard has 2 M.2 socket/s.
  • No NVMe RAID support
    ASUS Sabertooth 990FX does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • 1 fewer PCIe 3.0x16 slots
    ASUS Sabertooth 990FX has fewer PCIe 3.0x16 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
  • 1 fewer USB 3.2 Gen2 ports
    ASUS Sabertooth 990FX has fewer USB 3.2 Gen2 ports than the average motherboard (0 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
  • 2 fewer USB 3.2 Gen1 ports
    ASUS Sabertooth 990FX 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.
  • 1 fewer DisplayPort outputs
    ASUS Sabertooth 990FX has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
    other video outputs only
  • 1 fewer total USB-C connections
    ASUS Sabertooth 990FX has fewer total USB-C connections than the average motherboard (0 vs 1). The average motherboard has 1 total USB-C connections.
  • 1 fewer HDMI outputs
    ASUS Sabertooth 990FX has fewer HDMI outputs than the average motherboard (0 vs 1). The average motherboard has 1 HDMI outputs.
  • More basic LAN controller
    ASUS Sabertooth 990FX has more basic LAN controller than the average motherboard (Realtek RTL8,111F vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C LAN controller.
  • 60% lower LAN speed
    ASUS Sabertooth 990FX 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.
  • No Wi-Fi antenna included
    ASUS Sabertooth 990FX does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • 20 dB lower audio SNR
    ASUS Sabertooth 990FX has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • More basic audio codec
    ASUS Sabertooth 990FX has more basic audio codec than the average motherboard (Realtek ALC892 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 2 fewer ARGB headers
    ASUS Sabertooth 990FX has fewer ARGB headers than the average motherboard (0 vs 2). The average motherboard has 2 ARGB header/s.
  • No pump header
    ASUS Sabertooth 990FX does not have a pump header, while the average motherboard does. 77% of motherboards include a pump header.
  • No onboard RGB lighting
    ASUS Sabertooth 990FX does not have onboard RGB lighting, while the average motherboard does. 50.3% of motherboards include onboard RGB lighting.
  • 1 fewer RGB headers
    ASUS Sabertooth 990FX has fewer RGB headers than the average motherboard (0 vs 1). The average motherboard has 1 RGB header/s.
  • 2 A lower pump header current limit
    ASUS Sabertooth 990FX 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.
  • Fewer VRM phases
    ASUS Sabertooth 990FX has fewer VRM phases than the average motherboard (8+2 vs 10). The average motherboard has 10 VRM phase/s.
  • More basic motherboard chipset
    ASUS Sabertooth 990FX has more basic motherboard chipset than the average motherboard (AMD 990FX vs Intel B860). The average motherboard uses Intel B860 chipset.
    Paired with SB950 southbridge.
    What it is: The chipset that defines the motherboard platform and many of its features.
    When it matters: When you compare platform features, connectivity, and CPU support.

    Importance: HIGH

    ASUS Sabertooth 990FX has more basic motherboard chipset than the average motherboard (AMD 990FX vs Intel B860). The average motherboard uses Intel B860 chipset.AMD 990FX vs Intel B860
  • More basic LAN controller
    ASUS Sabertooth 990FX has more basic LAN controller than the average motherboard (Realtek RTL8,111F vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C LAN controller.
    What it is: The model of onboard Ethernet controller used by the motherboard.
    When it matters: When you compare networking hardware quality and features.

    Importance: MEDIUM

    ASUS Sabertooth 990FX has more basic LAN controller than the average motherboard (Realtek RTL8,111F vs Marvell AQtion AQC113C). The average motherboard uses Marvell AQtion AQC113C LAN controller.Realtek RTL8111F vs Marvell AQtion AQC113C
  • 60% lower LAN speed
    ASUS Sabertooth 990FX 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.
    What it is: The maximum wired Ethernet speed supported by the motherboard.
    When it matters: When you want faster wired networking.

    Importance: HIGH

    Good value: 2.5GbE

    ASUS Sabertooth 990FX 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
  • 75% less maximum memory capacity
    ASUS Sabertooth 990FX has fewer maximum memory capacity than the average motherboard (32 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    What it is: The largest total amount of RAM the motherboard supports.
    When it matters: When you plan a build with very high memory capacity.

    Importance: HIGH

    Good value: >=128 GB

    ASUS Sabertooth 990FX has fewer maximum memory capacity than the average motherboard (32 GB vs 128 GB). The average motherboard supports 128 GB of memory.32 GB vs 128 GB
  • 2 fewer M.2 sockets
    ASUS Sabertooth 990FX has fewer M.2 sockets than the average motherboard (0 vs 2). The average motherboard has 2 M.2 socket/s.
    What it is: The number of M.2 slots available on the motherboard.
    When it matters: When you want room for more NVMe or M.2 drives.

    Importance: HIGH

    Good value: >=3

    ASUS Sabertooth 990FX has fewer M.2 sockets than the average motherboard (0 vs 2). The average motherboard has 2 M.2 socket/s.0 vs 2
  • No NVMe RAID support
    ASUS Sabertooth 990FX does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
    What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
    When it matters: When you plan to use multiple NVMe drives in RAID.

    Importance: LOW

    ASUS Sabertooth 990FX does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • Older DDR memory generation
    ASUS Sabertooth 990FX has older DDR memory generation than the average motherboard (DDR3 vs DDR4). The average motherboard supports DDR4 memory.
    What it is: The RAM generation the motherboard supports, such as DDR4 or DDR5.
    When it matters: When you need the board to match a certain memory platform.

    Importance: HIGH

    Good value: DDR5

    ASUS Sabertooth 990FX has older DDR memory generation than the average motherboard (DDR3 vs DDR4). The average motherboard supports DDR4 memory.DDR3 vs DDR4
  • No BIOS flashback support
    ASUS Sabertooth 990FX does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    What it is: Shows whether the motherboard can update BIOS without needing a fully installed or supported CPU to boot first.
    When it matters: When you may need to update BIOS before the system can boot.

    Importance: MEDIUM

    ASUS Sabertooth 990FX does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
Total
Overall
Platform & Features
Memory
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

United Kingdom
amazon
3.8
101 Reviews
amazon
4.0
99 Reviews
United States
Amazon_logo.png
4.0
116 Reviews
Amazon_logo.png
3.7
28 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS Sabertooth 990FX?

  • High-quality, durable build with military-grade TUF components and a 5-year warranty
  • Excellent thermal management featuring ceramic-coated heatsinks and comprehensive 'Thermal Radar' monitoring
  • Strong overclocking stability supported by an 8+2 phase digital VRM design
  • User-friendly UEFI BIOS with mouse support and specialized features like BIOS Flashback and MemOK!
  • Broad connectivity options including 3-way SLI/CrossFireX support, multiple SATA 6Gbps ports, and front-panel USB 3.0

What customers dislike about ASUS Sabertooth 990FX?

  • Large CPU coolers can cause clearance issues with the closest RAM slots
  • Initial versions may require a BIOS update using an older CPU to support newer FX-series processors
  • Reported issues with stability and significant boot delays when using four sticks of RAM simultaneously
  • Platform is considered dated by modern standards, lacking native support for DDR4 and newer high-speed storage interfaces
  • Some users noted a lack of 4-pin RGB headers and no onboard power or reset buttons for open-bench testing

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