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GIGABYTE AORUS Z370 Gaming K3 Review | 107 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$120
  • CPU socket: LGA 1151
  • Chipset: Intel Z370
  • Form factor: ATX

GIGABYTE AORUS Z370 Gaming K3 review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

5.9

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%

5.9

Technical Score

10.0%

?

User score

Good
5.9

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%

5.9

Memory

16.0%

7.1

Platform & Features

16.0%

6.0

Storage

15.0%

5.5

Network

13.0%

5.2

Ports & USB

8.0%

3.3

Expansion

8.0%

6.3

Power & Cooling

5.0%

9.1

Audio

Good
?

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%

?

User reviews

30.0%

?

Popularity

  • 4.3
    Gaming

    Score components:

    28.0%

    4.8

    VRM phases

    22.0%

    5.5

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    4.4

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

  • No image
No image

Best prices in UK

    N/A~ £110

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 Aorus Z370 Gaming K3 is an ATX motherboard built for 8th Gen Intel Core processors, featuring four DDR4 DIMM slots supporting up to 64GB at overclocked speeds of 4000MHz+. Key technical characteristics include dual ultra-fast M.2 slots (PCIe Gen3 x4), an ASMedia 3142 controller providing USB 3.1 Gen 2 Type-A and Type-C connectivity, and high-fidelity audio via the Realtek ALC1220 codec with WIMA capacitors. Main pros include its extensive RGB Fusion customisation, Intel GbE LAN with cFosSpeed for reduced gaming lag, and Smart Fan 5 technology for precise thermal management. However, notable cons include a lack of support for NVIDIA SLI multi-GPU configurations, the absence of dedicated M.2 heatsinks, and a power delivery system that can run hot under heavy overclocking of high-end CPUs.

Technical Specifications of GIGABYTE AORUS Z370 Gaming K3

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%

?

Memory

16.0%

?

Platform & Features

16.0%

?

Storage

15.0%

?

Network

13.0%

?

Ports & USB

8.0%

?

Expansion

8.0%

?

Power & Cooling

5.0%

?

Audio

5.9
GIGABYTE AORUS Z370 Gaming K3 has a technical score of 5.94 points, which is lower than that of 58.1% 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%

0.0

User reviews

30.0%

1.0

Popularity

?
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.
1.0
GIGABYTE AORUS Z370 Gaming K3 has a popularity of 1 points, which is lower than 77.9% 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%

5.9

Overall score

40.0%

9.9

Price

7.1
GIGABYTE AORUS Z370 Gaming K3 has a quality-to-price ratio of 7.1 points, which is lower than 58.1% 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 1151
GIGABYTE AORUS Z370 Gaming K3 uses the LGA 1151 CPU socket, which is less advanced than that of 70.5% of motherboards and equal to that of 13.8% 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 Z370
GIGABYTE AORUS Z370 Gaming K3 uses the Intel Z370 chipset, which is less advanced than that of 62.2% of motherboards and equal to that of 1.8% 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 AORUS Z370 Gaming K3 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

DDR4
GIGABYTE AORUS Z370 Gaming K3 uses DDR4 memory, which is newer than that of 13.6% of motherboards and equal to that of 51% 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 AORUS Z370 Gaming K3 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

64 GB
GIGABYTE AORUS Z370 Gaming K3 supports up to 64 GB of memory, which is less than 62.6% of motherboards and equal to 24.3% 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 AORUS Z370 Gaming K3 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

4,000 MT/s
GIGABYTE AORUS Z370 Gaming K3 supports memory speeds up to 4000 MT/s, which is lower than that of 56.6% of motherboards and equal to that of 1.1% 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

2
GIGABYTE AORUS Z370 Gaming K3 has 2 M.2 sockets, which is more than 30.8% of motherboards and equal to 34.6% 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

1x PCIe 3.0 x4/SATA, 1x PCIe 3.0 x4
GIGABYTE AORUS Z370 Gaming K3 offers 1x PCIe 3.0x4/SATA, 1x PCIe 3.0x4 for M.2 slot interfaces, which is slower than that of 63.9% of motherboards and equal to that of 3.3% 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

6
GIGABYTE AORUS Z370 Gaming K3 has 6 SATA 3 connectors, which is more than 52.6% of motherboards and equal to 32.1% 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 AORUS Z370 Gaming K3 supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
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

yes
GIGABYTE AORUS Z370 Gaming K3 supports NVMe RAID. 40.3% of motherboards support this feature.
Intel RST support
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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 AORUS Z370 Gaming K3 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
GIGABYTE AORUS Z370 Gaming K3 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

2
GIGABYTE AORUS Z370 Gaming K3 has 2 PCIe 3.0x16 slots, which is more than 67.4% of motherboards and equal to 15.4% 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

?
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

no
GIGABYTE AORUS Z370 Gaming K3 does not support PCIe bifurcation. 61% of motherboards support this feature.
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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 AORUS Z370 Gaming K3 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

16
GIGABYTE AORUS Z370 Gaming K3 has 16 USB ports (including headers), which is more than 61.8% of motherboards and equal to 10.2% 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
GIGABYTE AORUS Z370 Gaming K3 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

1
GIGABYTE AORUS Z370 Gaming K3 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 AORUS Z370 Gaming K3 has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
10Gbps excluded.
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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

1 Gbps
GIGABYTE AORUS Z370 Gaming K3 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

?
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 AORUS Z370 Gaming K3 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 AORUS Z370 Gaming K3 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 ALC1220
GIGABYTE AORUS Z370 Gaming K3 uses the Realtek ALC1220 audio codec, which is more advanced than that of 65.1% of motherboards and equal to that of 13% 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 AORUS Z370 Gaming K3 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

120 dB
GIGABYTE AORUS Z370 Gaming K3 has an audio SNR of 120 dB, which is higher than that of 55% of motherboards and equal to that of 41.5% 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

yes
GIGABYTE AORUS Z370 Gaming K3 supports a headphone amp. 37% of motherboards support this feature.
Smart Headphone Amp.
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 AORUS Z370 Gaming K3 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

7
GIGABYTE AORUS Z370 Gaming K3 has 7 VRM phases, which is fewer than 82.4% of motherboards and equal to 0.8% 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 AORUS Z370 Gaming K3 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

5
GIGABYTE AORUS Z370 Gaming K3 has 5 fan headers, which is more than 35.8% of motherboards and equal to 14.5% 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 AORUS Z370 Gaming K3 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

?
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GIGABYTE AORUS Z370 Gaming K3 vs the average motherboard

  • Includes dual BIOS
    GIGABYTE AORUS Z370 Gaming K3 has dual BIOS, while the average motherboard does not. 22.4% of motherboards include dual BIOS.
    What it is: Shows whether the motherboard includes two BIOS chips for redundancy or recovery.
    When it matters: When BIOS safety and recovery matter to you.

    Importance: LOW

    GIGABYTE AORUS Z370 Gaming K3 has dual BIOS, while the average motherboard does not. 22.4% of motherboards include dual BIOS.
  • 1 more USB 3.2 Gen2 USB-C ports
    GIGABYTE AORUS Z370 Gaming K3 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.
    What it is: The number of rear USB 3.2 Gen2 Type-C ports on the motherboard.
    When it matters: When you want faster rear USB-C connectivity.

    Importance: HIGH

    Good value: >=1

    GIGABYTE AORUS Z370 Gaming K3 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 USB 3.2 Gen1 headers
    GIGABYTE AORUS Z370 Gaming K3 has more USB 3.2 Gen1 headers than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen1 header/s.
    two internal headers
    What it is: The number of internal USB 3.2 Gen1 headers for front-panel Type-A ports.
    When it matters: When your case has front USB-A ports to connect.

    Importance: MEDIUM

    Good value: >=1

    GIGABYTE AORUS Z370 Gaming K3 has more USB 3.2 Gen1 headers than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen1 header/s.2 vs 1
  • 3 more PCIe x1 slots
    GIGABYTE AORUS Z370 Gaming K3 has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    What it is: The number of PCIe x1 slots on the motherboard.
    When it matters: When you want space for smaller add-in cards.

    Importance: MEDIUM

    Good value: >=2

    GIGABYTE AORUS Z370 Gaming K3 has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.4 vs 1
  • 1 more USB4 or Thunderbolt headers
    GIGABYTE AORUS Z370 Gaming K3 has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    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 AORUS Z370 Gaming K3 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 RGB headers
    GIGABYTE AORUS Z370 Gaming K3 has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.
    RGBW header compatible with standard 12V RGB strips
    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 AORUS Z370 Gaming K3 has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.2 vs 1
  • Better audio codec
    GIGABYTE AORUS Z370 Gaming K3 has better audio codec than the average motherboard (Realtek ALC1,220 vs Realtek ALC898). The average motherboard uses Realtek ALC898 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

    GIGABYTE AORUS Z370 Gaming K3 has better audio codec than the average motherboard (Realtek ALC1,220 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.Realtek ALC1220 vs Realtek ALC898
  • 5 dB higher audio SNR
    GIGABYTE AORUS Z370 Gaming K3 has a higher audio SNR than the average motherboard (120 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 AORUS Z370 Gaming K3 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
  • Includes dual BIOS
    GIGABYTE AORUS Z370 Gaming K3 has dual BIOS, while the average motherboard does not. 22.4% of motherboards include dual BIOS.
  • Broader Windows support
    GIGABYTE AORUS Z370 Gaming K3 has broader Windows support than the average motherboard (Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7 vs Windows 11, Windows 10). The average motherboard supports Windows 11, Windows 10.
  • 2 more SATA 3 connectors
    GIGABYTE AORUS Z370 Gaming K3 has more SATA 3 connectors than the average motherboard (6 vs 4). The average motherboard has 4 SATA 3 connectors.
  • 3 more PCIe x1 slots
    GIGABYTE AORUS Z370 Gaming K3 has more PCIe x1 slots than the average motherboard (4 vs 1). The average motherboard has 1 PCIe x1 slot/s.
  • 1 more USB 3.2 Gen2 USB-C ports
    GIGABYTE AORUS Z370 Gaming K3 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 more USB 3.2 Gen1 headers
    GIGABYTE AORUS Z370 Gaming K3 has more USB 3.2 Gen1 headers than the average motherboard (2 vs 1). The average motherboard has 1 USB 3.2 Gen1 header/s.
  • 1 more USB4 or Thunderbolt headers
    GIGABYTE AORUS Z370 Gaming K3 has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • 1 more DVI outputs
    GIGABYTE AORUS Z370 Gaming K3 has more DVI outputs than the average motherboard (1 vs 0). The average motherboard has 0 DVI outputs.
  • 1 more total USB connections
    GIGABYTE AORUS Z370 Gaming K3 has more total USB connections than the average motherboard (16 vs 15). The average motherboard has 15 total USB connections.
  • Better audio codec
    GIGABYTE AORUS Z370 Gaming K3 has better audio codec than the average motherboard (Realtek ALC1,220 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 5 dB higher audio SNR
    GIGABYTE AORUS Z370 Gaming K3 has a higher audio SNR than the average motherboard (120 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • 1 more 3.5mm audio jacks
    GIGABYTE AORUS Z370 Gaming K3 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 AORUS Z370 Gaming K3 has more RGB headers than the average motherboard (2 vs 1). The average motherboard has 1 RGB header/s.

Total
Platform & Features
Storage
Expansion
Ports & USB
Audio
Power & Cooling
  • More basic motherboard chipset
    GIGABYTE AORUS Z370 Gaming K3 has more basic motherboard chipset than the average motherboard (Intel Z370 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No BIOS flashback support
    GIGABYTE AORUS Z370 Gaming K3 does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    requires CPU/RAM
  • Fewer BIOS update options
    GIGABYTE AORUS Z370 Gaming K3 has fewer BIOS update options than the average motherboard (UEFI utility, Windows app vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
  • 4 years older release date
    GIGABYTE AORUS Z370 Gaming K3 is older than the average motherboard (2,017 vs 2,021). The average motherboard was released in 2,021.
    September 2017
  • 50% less maximum memory capacity
    GIGABYTE AORUS Z370 Gaming K3 has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.
  • 13% lower maximum RAM speed
    GIGABYTE AORUS Z370 Gaming K3 has a lower maximum RAM speed than the average motherboard (4,000 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • Slower M.2 slot interfaces
    GIGABYTE AORUS Z370 Gaming K3 has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4/SATA, 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 PCIe bifurcation support
    GIGABYTE AORUS Z370 Gaming K3 does not support PCIe bifurcation, while the average motherboard does. 61% of motherboards support PCIe bifurcation.
  • 1 fewer DisplayPort outputs
    GIGABYTE AORUS Z370 Gaming K3 has fewer DisplayPort outputs than the average motherboard (0 vs 1). The average motherboard has 1 DisplayPort outputs.
  • Older HDMI version
    GIGABYTE AORUS Z370 Gaming K3 has older HDMI version than the average motherboard (1.4 vs 2.1). The average motherboard supports HDMI 2.1.
  • 60% lower LAN speed
    GIGABYTE AORUS Z370 Gaming K3 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
    GIGABYTE AORUS Z370 Gaming K3 does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • No optical S/PDIF out
    GIGABYTE AORUS Z370 Gaming K3 does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • Fewer VRM phases
    GIGABYTE AORUS Z370 Gaming K3 has fewer VRM phases than the average motherboard (7 vs 10). The average motherboard has 10 VRM phase/s.
  • More basic motherboard chipset
    GIGABYTE AORUS Z370 Gaming K3 has more basic motherboard chipset than the average motherboard (Intel Z370 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 AORUS Z370 Gaming K3 has more basic motherboard chipset than the average motherboard (Intel Z370 vs Intel B860). The average motherboard uses Intel B860 chipset.Intel Z370 vs Intel B860
  • 60% lower LAN speed
    GIGABYTE AORUS Z370 Gaming K3 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

    GIGABYTE AORUS Z370 Gaming K3 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
  • Slower M.2 slot interfaces
    GIGABYTE AORUS Z370 Gaming K3 has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4/SATA, 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 AORUS Z370 Gaming K3 has slower M.2 slot interfaces than the average motherboard (1x PCIe 3.0x4/SATA, 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.1x PCIe 3.0x4/SATA, 1x PCIe 3.0x4 vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • 50% less maximum memory capacity
    GIGABYTE AORUS Z370 Gaming K3 has fewer maximum memory capacity than the average motherboard (64 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

    GIGABYTE AORUS Z370 Gaming K3 has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.64 GB vs 128 GB
  • No BIOS flashback support
    GIGABYTE AORUS Z370 Gaming K3 does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    requires CPU/RAM
    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

    GIGABYTE AORUS Z370 Gaming K3 does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • No PCIe bifurcation support
    GIGABYTE AORUS Z370 Gaming K3 does not support PCIe bifurcation, while the average motherboard does. 61% of motherboards support PCIe bifurcation.
    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

    GIGABYTE AORUS Z370 Gaming K3 does not support PCIe bifurcation, while the average motherboard does. 61% of motherboards support PCIe bifurcation.
  • No Wi-Fi antenna included
    GIGABYTE AORUS Z370 Gaming K3 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 AORUS Z370 Gaming K3 does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • Fewer VRM phases
    GIGABYTE AORUS Z370 Gaming K3 has fewer VRM phases than the average motherboard (7 vs 10). The average motherboard has 10 VRM phase/s.
    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

    GIGABYTE AORUS Z370 Gaming K3 has fewer VRM phases than the average motherboard (7 vs 10). The average motherboard has 10 VRM phase/s.7 vs 10
Total
Overall
Platform & Features
Memory
Storage
Expansion
Ports & USB
Network
Audio
Power & Cooling

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Third-party reviews

What customers like about GIGABYTE AORUS Z370 Gaming K3?

  • Excellent value for money as an entry-level Z370 gaming board
  • Solid performance and stability, even matching more expensive models in standard tasks
  • Good connectivity options, including USB 3.1 Gen 2 (Type-A and Type-C) and dual M.2 slots
  • High-quality onboard audio using the ALC1220 codec and WIMA capacitors
  • User-friendly BIOS that is easy for both enthusiasts and new users to navigate
  • Effective cooling features with the Smart Fan 5 system and multiple temperature sensors
  • Aesthetic appeal with customizable RGB Fusion lighting and armored PCIe slots

What customers dislike about GIGABYTE AORUS Z370 Gaming K3?

  • Lack of front-panel USB-C header
  • Missing heat sinks for the M.2 slots, which can lead to thermal throttling on some drives
  • Does not support SLI multi-GPU configurations (only Crossfire)
  • No integrated Wi-Fi or Bluetooth
  • VRM thermal performance may limit extreme overclocking (5GHz+) compared to higher-end boards
  • Non-angled (upright) SATA ports can make cable management slightly more difficult

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