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GIGABYTE B660 Gaming X Review | 107 Data compared

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  • Avg. price in UK: ~£150
  • Avg. price in US: ~$190
  • CPU socket: LGA 1700
  • Chipset: Intel B660
  • Form factor: ATX

GIGABYTE B660 Gaming X review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

7.0

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%

6.7

Technical Score

10.0%

9.4

User score

Very good
6.7

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%

7.6

Memory

16.0%

8.4

Platform & Features

16.0%

7.1

Storage

15.0%

7.4

Network

13.0%

3.9

Ports & USB

8.0%

3.8

Expansion

8.0%

6.8

Power & Cooling

5.0%

6.8

Audio

Good
9.4

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%

9.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.6
(506)
amazon
4.6
(193)
amazon
4.2
(31)
United States
Amazon_logo.png
4.6
(196)
Amazon_logo.png
4.3
(31)

(Reviews last updated: May 2026)

Exceptional
  • 6.1
    Gaming

    Score components:

    28.0%

    5.9

    VRM phases

    22.0%

    7.8

    N. of M.2 sockets

    18.0%

    10

    LAN speed

    17.0%

    4.9

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

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Best prices in UK

Best rankings

?

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

Verdict

The Gigabyte B660 Gaming X is an ATX motherboard for Intel LGA 1700 processors featuring an 8+1+1 phase digital VRM design with DrMOS and a fully covered thermal solution for stable power delivery. Key specifications include four DDR4 memory slots supporting up to 128GB at 4400MHz (OC), three M.2 slots (two PCIe 4.0 x4), 2.5GbE LAN, and a pre-installed I/O shield. Its main pros are the robust cooling for its price point, triple M.2 storage options, and the Q-Flash Plus button for BIOS updates without a CPU installed. However, notable cons include the lack of a rear USB-C port (it only provides an internal header), the absence of built-in Wi-Fi on the standard model, and basic on-board audio components.

Technical Specifications of GIGABYTE B660 Gaming X

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%

7.6

Memory

16.0%

8.4

Platform & Features

16.0%

7.1

Storage

15.0%

7.4

Network

13.0%

3.9

Ports & USB

8.0%

3.8

Expansion

8.0%

6.8

Power & Cooling

5.0%

6.8

Audio

6.7
GIGABYTE B660 Gaming X has a technical score of 6.71 points, which is higher than that of 56.8% 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%

9.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.6
(506)
amazon
4.6
(193)
amazon
4.2
(31)
United States
Amazon_logo.png
4.6
(196)
Amazon_logo.png
4.3
(31)

(Reviews last updated: May 2026)

9.4
GIGABYTE B660 Gaming X has a user score of 9.42 points, which is higher than that of 96.6% 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.
10
GIGABYTE B660 Gaming X has a popularity of 10 points, which is higher than 79.9% 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%

7.0

Overall score

40.0%

9.7

Price

7.8
GIGABYTE B660 Gaming X has a quality-to-price ratio of 7.8 points, which is higher than 64% 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

Gigabyte
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

LGA 1700
GIGABYTE B660 Gaming X uses the LGA 1700 CPU socket, which is more advanced than that of 55% of motherboards and equal to that of 22.7% of motherboards.
CPU platform

Importance: MEDIUM

Intel
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

Intel B660
GIGABYTE B660 Gaming X uses the Intel B660 chipset, which is more advanced than that of 57.6% of motherboards and equal to that of 2.8% of motherboards.
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
GIGABYTE B660 Gaming X 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.
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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

DDR5
GIGABYTE B660 Gaming X uses DDR5 memory, which is newer than that of 64.7% of motherboards and equal to that of 35.3% 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
GIGABYTE B660 Gaming X 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

128 GB
GIGABYTE B660 Gaming X supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 32.1% 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
GIGABYTE B660 Gaming X 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

4,400 MT/s
GIGABYTE B660 Gaming X supports memory speeds up to 4400 MT/s, which is lower than that of 51.2% of motherboards and equal to that of 3% 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

3
GIGABYTE B660 Gaming X has 3 M.2 sockets, which is more than 65.4% of motherboards and equal to 18.6% 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

2x PCIe 4.0 x4, 1x PCIe 3.0 x4
GIGABYTE B660 Gaming X offers 2x PCIe 4.0x4, 1x PCIe 3.0x4 for M.2 slot interfaces, which is faster than that of 71.7% of motherboards and equal to that of 0.3% of motherboards.
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

4
GIGABYTE B660 Gaming X has 4 SATA 3 connectors, which is more than 5.6% of motherboards and equal to 46.3% 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
GIGABYTE B660 Gaming X supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
SATA only
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
GIGABYTE B660 Gaming X does not support NVMe RAID. 59.8% of motherboards support this feature.
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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
GIGABYTE B660 Gaming X 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

1
GIGABYTE B660 Gaming X has 1 PCIe 4.0x16 slots, which is more than 55.6% of motherboards and equal to 35.3% 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
GIGABYTE B660 Gaming X has 0 PCIe 3.0x16 slots, which is fewer than 59.5% of motherboards and equal to 40.5% of motherboards.
runs at x1 mode
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/x1/x1
GIGABYTE B660 Gaming X uses x16/x1/x1 for PCIe slot electrical configuration, which is less flexible than that of 61.7% of motherboards and equal to that of 8% 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

?
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

8
GIGABYTE B660 Gaming X has 8 USB ports (rear I/O), which is more than 40.3% of motherboards and equal to 30.7% 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

15
GIGABYTE B660 Gaming X has 15 USB ports (including headers), which is more than 48.3% of motherboards and equal to 13.5% 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

0
GIGABYTE B660 Gaming X has 0 USB-C ports (rear I/O), which is fewer than 64.6% of motherboards and equal to 35.4% 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

1
GIGABYTE B660 Gaming X has 1 USB-C ports (including headers), which is more than 30.5% of motherboards and equal to 21.3% 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
GIGABYTE B660 Gaming X has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
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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

2.5 Gbps
GIGABYTE B660 Gaming X supports LAN speeds up to 2.5 Gbps, which is higher than that of 49.2% of motherboards and equal to that of 41.5% 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

?
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
GIGABYTE B660 Gaming X 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
GIGABYTE B660 Gaming X 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
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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 ALC897
GIGABYTE B660 Gaming X uses the Realtek ALC897 audio codec, which is less advanced than that of 50.8% of motherboards and equal to that of 29.3% 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
GIGABYTE B660 Gaming X 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
GIGABYTE B660 Gaming X 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
GIGABYTE B660 Gaming X 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+1+1
GIGABYTE B660 Gaming X has 8+1+1 VRM phases, which is fewer than 57.8% of motherboards and equal to 1.3% 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
GIGABYTE B660 Gaming X 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
GIGABYTE B660 Gaming X 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

yes
GIGABYTE B660 Gaming X has a pump header. 23.1% 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

2 A
GIGABYTE B660 Gaming X supports up to 2 A on the pump header, which is higher than that of 43.3% of motherboards and equal to that of 33.4% of motherboards.
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GIGABYTE B660 Gaming X vs the average motherboard

  • Newer DDR memory generation
    GIGABYTE B660 Gaming X has newer DDR memory generation than the average motherboard (DDR5 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

    GIGABYTE B660 Gaming X has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.DDR5 vs DDR4
  • Newer CPU socket
    GIGABYTE B660 Gaming X has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 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

    GIGABYTE B660 Gaming X has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.LGA 1700 vs LGA 1151
  • 1 more M.2 sockets
    GIGABYTE B660 Gaming X has more M.2 sockets than the average motherboard (3 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

    GIGABYTE B660 Gaming X has more M.2 sockets than the average motherboard (3 vs 2). The average motherboard has 2 M.2 socket/s.3 vs 2
  • Integrated I/O shield
    GIGABYTE B660 Gaming X has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
    What it is: Shows whether the rear I/O shield comes pre-mounted on the motherboard instead of being installed separately.
    When it matters: When you want an easier motherboard installation process.

    Importance: LOW

    GIGABYTE B660 Gaming X has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
  • 1 more PCIe 4.0x16 slots
    GIGABYTE B660 Gaming X has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    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

    GIGABYTE B660 Gaming X 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
  • 2 more USB4 or Thunderbolt headers
    GIGABYTE B660 Gaming X has more USB4 or Thunderbolt headers than the average motherboard (2 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    two internal headers
    What it is: The number of internal USB4 or Thunderbolt headers on the motherboard.
    When it matters: When you plan to add high-speed front USB-C or Thunderbolt connections.

    Importance: MEDIUM

    GIGABYTE B660 Gaming X has more USB4 or Thunderbolt headers than the average motherboard (2 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.2 vs 0
  • 1 more RGB headers
    GIGABYTE B660 Gaming X has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
    What it is: The number of 4-pin RGB headers available on the motherboard.
    When it matters: When you want to connect more standard RGB lighting devices.

    Importance: LOW

    Good value: >=2

    GIGABYTE B660 Gaming X has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.2 vs 1
  • 1 more USB 3.2 Gen2 headers
    GIGABYTE B660 Gaming X 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.
    What it is: The number of internal USB 3.2 Gen2 headers for front-panel USB-C ports.
    When it matters: When your case includes front USB-C connectivity.

    Importance: MEDIUM

    Good value: >=1

    GIGABYTE B660 Gaming X 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
  • Newer CPU socket
    GIGABYTE B660 Gaming X has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • Integrated I/O shield
    GIGABYTE B660 Gaming X has an integrated I/O shield, while the average motherboard does not. 46.1% of motherboards include an integrated I/O shield.
  • Includes onboard reset button
    GIGABYTE B660 Gaming X has an onboard reset button, while the average motherboard does not. 27.6% of motherboards include an onboard reset button.
  • Newer DDR memory generation
    GIGABYTE B660 Gaming X has newer DDR memory generation than the average motherboard (DDR5 vs DDR4). The average motherboard supports DDR4 memory.
  • 1 more M.2 sockets
    GIGABYTE B660 Gaming X has more M.2 sockets than the average motherboard (3 vs 2). The average motherboard has 2 M.2 socket/s.
  • 1 more PCIe 4.0x16 slots
    GIGABYTE B660 Gaming X has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
  • 1 more PCIe x1 slots
    GIGABYTE B660 Gaming X has more PCIe x1 slots than the average motherboard (2 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 2 more USB4 or Thunderbolt headers
    GIGABYTE B660 Gaming X has more USB4 or Thunderbolt headers than the average motherboard (2 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • 1 more USB 3.2 Gen2 headers
    GIGABYTE B660 Gaming X 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.
  • 3 more USB 2.0 ports
    GIGABYTE B660 Gaming X has more USB 2.0 ports than the average motherboard (5 vs 2). The average motherboard has 2 USB 2.0 port/s.
  • 1 more 3.5mm audio jacks
    GIGABYTE B660 Gaming X has more 3.5mm audio jacks than the average motherboard (6 vs 5). The average motherboard has 5 3.5mm audio jacks.
  • 1 more RGB headers
    GIGABYTE B660 Gaming X has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
  • 1 more fan headers
    GIGABYTE B660 Gaming X has more fan headers than the average motherboard (6 vs 5). The average motherboard has 5 fan header/s.

Total
Overall
Platform & Features
Memory
Storage
Expansion
Ports & USB
Audio
Power & Cooling
  • More basic motherboard chipset
    GIGABYTE B660 Gaming X has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No automatic overclocking
    GIGABYTE B660 Gaming X does not support automatic overclocking, while the average motherboard does. 74% of motherboards support automatic overclocking.
    memory auto-OC only
  • Fewer BIOS update options
    GIGABYTE B660 Gaming X has fewer BIOS update options than the average motherboard (UEFI utility, flashback vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
  • No NVMe RAID support
    GIGABYTE B660 Gaming X does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • Slower M.2 slot interfaces
    GIGABYTE B660 Gaming X has slower M.2 slot interfaces than the average motherboard (2x PCIe 4.0x4, 1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
  • No multi-GPU support
    GIGABYTE B660 Gaming X does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 1 fewer PCIe 3.0x16 slots
    GIGABYTE B660 Gaming X has fewer PCIe 3.0x16 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe 3.0x16 slot/s.
    runs at x1 mode
  • 1 fewer rear USB-C ports
    GIGABYTE B660 Gaming X has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
  • 2 fewer USB 3.2 Gen1 ports
    GIGABYTE B660 Gaming X 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 PS/2 ports
    GIGABYTE B660 Gaming X has fewer PS/2 ports than the average motherboard (0 vs 1). The average motherboard has 1 PS/2 port/s.
  • No Wi-Fi antenna included
    GIGABYTE B660 Gaming X does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • Older Bluetooth version
    GIGABYTE B660 Gaming X has older Bluetooth version than the average motherboard (5.2 vs 5.4). The average motherboard supports Bluetooth 5.4.
  • 20 dB lower audio SNR
    GIGABYTE B660 Gaming X 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
    GIGABYTE B660 Gaming X has more basic audio codec than the average motherboard (Realtek ALC897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • No optical S/PDIF out
    GIGABYTE B660 Gaming X does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • More basic motherboard chipset
    GIGABYTE B660 Gaming X has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 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

    GIGABYTE B660 Gaming X has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 chipset.Intel B660 vs Intel B860
  • No NVMe RAID support
    GIGABYTE B660 Gaming X 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

    GIGABYTE B660 Gaming X does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • 1 fewer rear USB-C ports
    GIGABYTE B660 Gaming X has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
    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

    GIGABYTE B660 Gaming X has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.0 vs 1
  • No Wi-Fi antenna included
    GIGABYTE B660 Gaming X does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
    What it is: Shows whether the external Wi-Fi antenna is included with the motherboard package.
    When it matters: When the board has Wi-Fi and you want it ready to use right away.

    Importance: LOW

    GIGABYTE B660 Gaming X 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
    GIGABYTE B660 Gaming X has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    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

    GIGABYTE B660 Gaming X has a lower audio SNR than the average motherboard (95 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.95 dB vs 115 dB
  • No multi-GPU support
    GIGABYTE B660 Gaming X does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
    What it is: Shows whether the board can run more than one graphics card in a supported multi-GPU configuration.
    When it matters: When you plan to run more than one graphics card.

    Importance: LOW

    GIGABYTE B660 Gaming X does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 2 fewer USB 3.2 Gen1 ports
    GIGABYTE B660 Gaming X 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.
    What it is: The number of rear USB 3.2 Gen1 Type-A ports on the motherboard.
    When it matters: When you want more standard USB ports with faster transfer speeds.

    Importance: MEDIUM

    Good value: >=4

    GIGABYTE B660 Gaming X 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
  • Slower M.2 slot interfaces
    GIGABYTE B660 Gaming X has slower M.2 slot interfaces than the average motherboard (2x PCIe 4.0x4, 1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    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

    GIGABYTE B660 Gaming X has slower M.2 slot interfaces than the average motherboard (2x PCIe 4.0x4, 1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.2x PCIe 4.0x4, 1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
Total
Platform & Features
Storage
Expansion
Ports & USB
Network
Audio

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Third-party reviews

United Kingdom
amazon
4.6
506 Reviews
amazon
4.6
193 Reviews
amazon
4.2
31 Reviews
United States
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4.6
196 Reviews
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4.3
31 Reviews

(Reviews last updated: May 2026)

What customers like about GIGABYTE B660 Gaming X?

  • Competitive pricing, offering a balanced mid-range feature set for the cost.
  • Excellent storage options with three M.2 slots (PCIe 4.0/3.0) and thermal guards for cooling.
  • Strong thermal performance featuring large gunmetal grey heatsinks that keep VRMs below 60°C under stress.
  • High connectivity including 2.5 GbE LAN and a rear USB 3.2 Gen 2 Type-C port.
  • Convenient Q-Flash Plus feature allows BIOS updates without installing a CPU or RAM.
  • Ample fan headers (six in total) provide flexibility for various cooling setups.

What customers dislike about GIGABYTE B660 Gaming X?

  • Out-of-the-box performance issues reported due to insufficient default voltage, sometimes requiring manual overvolting to reach standard clock speeds.
  • Lacks CPU overclocking support, which is a standard limitation of the B660 chipset.
  • Some users reported 'flaky' firmware leading to potential RAM instability, particularly with high-frequency XMP profiles.
  • Aesthetically basic PCB design that some users feel looks budget compared to higher-end Aorus models.
  • Limited rear I/O for some users, specifically noted for lacking internal USB-C headers on certain revisions.
  • Onboard audio solution (ALC897) is considered basic or lackluster by enthusiasts.

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