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ASRock X570 Phantom Gaming-ITX/TB3 vs Gigabyte B550I AORUS Pro AX: Comparison
ASRock X570 Phantom Gaming-ITX/TB3 vs Gigabyte B550I AORUS Pro AX m.2 slots compared
The gap that matters here is m.2 slots: ASRock X570 Phantom Gaming-ITX/TB3 1 against Gigabyte B550I AORUS Pro AX 2, which puts Gigabyte B550I AORUS Pro AX 50% ahead. They differ on rear usb 5gbps ports too, 2 on the ASRock X570 Phantom Gaming-ITX/TB3 versus 4 on the Gigabyte B550I AORUS Pro AX. Vcore power stages is not the same on both, 10 on the ASRock X570 Phantom Gaming-ITX/TB3 versus 8 on the Gigabyte B550I AORUS Pro AX.
ASRock X570 Phantom Gaming-ITX/TB3 vs Gigabyte B550I AORUS Pro AX: which one fits your build
The ASRock X570 Phantom Gaming-ITX/TB3 is the one to take for budget Ryzen 5000-series SFF builds using existing AM4 CPUs, though it is not the pick for anyone needing more than one M.2 slot for storage. The same goes for AM4 builders who specifically need built-in Thunderbolt 3 for eGPU or fast external storage. Avoid it for new builds where AM5 offers a longer upgrade runway for similar money. The Gigabyte B550I AORUS Pro AX suits SFF cases where rear-mounted M.2 storage improves front-panel airflow. It is equally the pick for AM4 builders wanting genuinely strong VRM headroom for Ryzen 5000 X3D chips. It is not the one for buyers who specifically want built-in Thunderbolt like the ASRock X570 ITX board.
Where the two are identical
The common ground is wider than the gap: memory slots, max memory, max memory capacity, form factor and platform are identical here. They match on 13 further specifications as well.
Frequently asked questions
Do the ASRock X570 Phantom Gaming-ITX/TB3 and Gigabyte B550I AORUS Pro AX differ on chipset?
Yes. Chipset reads X570 on the ASRock X570 Phantom Gaming-ITX/TB3 versus B550 on the Gigabyte B550I AORUS Pro AX.
Is the Newest CPU Family Supported the same on the ASRock X570 Phantom Gaming-ITX/TB3 and Gigabyte B550I AORUS Pro AX?
It is. Both are listed at Ryzen 5000, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock X570 Phantom Gaming-ITX/TB3
- AMD
- Gigabyte B550I AORUS Pro AX
- AMD
Model Number
- ASRock X570 Phantom Gaming-ITX/TB3
- X570 Phantom Gaming-ITX/TB3
- Gigabyte B550I AORUS Pro AX
- B550I AORUS Pro AX
Socket
- ASRock X570 Phantom Gaming-ITX/TB3
- AMD Ryzen 2000 / 3000 / 4000 G / 5000 / 5000 G series (AM4)
- Gigabyte B550I AORUS Pro AX
- AMD Ryzen 5000 / 4000 / 3000 series (AM4)
Form Factor
- ASRock X570 Phantom Gaming-ITX/TB3
- Mini-ITX
- Gigabyte B550I AORUS Pro AX
- Mini-ITX
Chipset
- ASRock X570 Phantom Gaming-ITX/TB3
- X570
- Gigabyte B550I AORUS Pro AX
- B550
Newest CPU Family Supported
- ASRock X570 Phantom Gaming-ITX/TB3
- Ryzen 5000
- Gigabyte B550I AORUS Pro AX
- Ryzen 5000
Memory Type
- ASRock X570 Phantom Gaming-ITX/TB3
- 2x DDR4, dual-channel, up to 64GB, up to DDR4-4533+ (OC), ECC and non-ECC unbuffered
- Gigabyte B550I AORUS Pro AX
- 2x DDR4, up to 64GB, up to DDR4-5300 (OC)
CPU Overclocking Supported
- ASRock X570 Phantom Gaming-ITX/TB3
- Yes
- Gigabyte B550I AORUS Pro AX
- Yes
Memory Slots
- ASRock X570 Phantom Gaming-ITX/TB3
- 2
- Gigabyte B550I AORUS Pro AX
- 2
Max Memory
- ASRock X570 Phantom Gaming-ITX/TB3
- 64 GB
- Gigabyte B550I AORUS Pro AX
- 64 GB
Board Width
- ASRock X570 Phantom Gaming-ITX/TB3
- 170 mm
- Gigabyte B550I AORUS Pro AX
- 170 mm
M.2 Slots
- ASRock X570 Phantom Gaming-ITX/TB3
- 1-50%
- Gigabyte B550I AORUS Pro AX
- 2Best
PCIe 5.0 Support
- ASRock X570 Phantom Gaming-ITX/TB3
- No
- Gigabyte B550I AORUS Pro AX
- No
Wi-Fi Onboard
- ASRock X570 Phantom Gaming-ITX/TB3
- Yes
- Gigabyte B550I AORUS Pro AX
- Yes
Memory Channels
- ASRock X570 Phantom Gaming-ITX/TB3
- 2
- Gigabyte B550I AORUS Pro AX
- 2
Max Memory Capacity
- ASRock X570 Phantom Gaming-ITX/TB3
- 64 GB
- Gigabyte B550I AORUS Pro AX
- 64 GB
Max Rated Memory Speed
- ASRock X570 Phantom Gaming-ITX/TB3
- 4533 MT/s
- Gigabyte B550I AORUS Pro AX
- 5300 MT/sBest
M.2 Slots Onboard
- ASRock X570 Phantom Gaming-ITX/TB3
- 1
- Gigabyte B550I AORUS Pro AX
- 2
SATA Ports
- ASRock X570 Phantom Gaming-ITX/TB3
- 4
- Gigabyte B550I AORUS Pro AX
- 4
PCIe x16 Slots
- ASRock X570 Phantom Gaming-ITX/TB3
- 1
- Gigabyte B550I AORUS Pro AX
- 1
Primary Graphics Slot Gen
- ASRock X570 Phantom Gaming-ITX/TB3
- PCIe 4.0
- Gigabyte B550I AORUS Pro AX
- PCIe 4.0
Rear USB 10Gbps Ports
- ASRock X570 Phantom Gaming-ITX/TB3
- 2
- Gigabyte B550I AORUS Pro AX
- 2
Rear USB 5Gbps Ports
- ASRock X570 Phantom Gaming-ITX/TB3
- 2
- Gigabyte B550I AORUS Pro AX
- 4
Fan and Pump Headers
- ASRock X570 Phantom Gaming-ITX/TB3
- 3
- Gigabyte B550I AORUS Pro AX
- 3
Vcore Power Stages
- ASRock X570 Phantom Gaming-ITX/TB3
- 10
- Gigabyte B550I AORUS Pro AX
- 8
Max Ethernet Speed
- ASRock X570 Phantom Gaming-ITX/TB3
- 1 Gbps
- Gigabyte B550I AORUS Pro AX
- 2.5 GbpsBest
Ethernet Port Count
- ASRock X570 Phantom Gaming-ITX/TB3
- 1
- Gigabyte B550I AORUS Pro AX
- 1
Wi-Fi Standard
- ASRock X570 Phantom Gaming-ITX/TB3
- Wi-Fi 6
- Gigabyte B550I AORUS Pro AX
- Wi-Fi 6
Bluetooth Version
- ASRock X570 Phantom Gaming-ITX/TB3
- 5.2
- Gigabyte B550I AORUS Pro AX
- 5
Audio Codec
- ASRock X570 Phantom Gaming-ITX/TB3
- Realtek ALC1220
- Gigabyte B550I AORUS Pro AX
- Realtek ALC1220-VB
Expansion
- ASRock X570 Phantom Gaming-ITX/TB3
- 1x PCIe 4.0 x16 (Ryzen 3000/5000; PCIe 3.0 with APUs and Ryzen 2000)
- Gigabyte B550I AORUS Pro AX
- 1x PCIe 4.0 x16 (3.0 with G-series APUs), 2x M.2, 4x SATA 6Gb/s
Connectivity
- ASRock X570 Phantom Gaming-ITX/TB3
- 1x Thunderbolt 3 Type-C (40Gbps), 2x USB 3.2 Gen2 Type-A, 2x USB 3.2 Gen1 rear
- Gigabyte B550I AORUS Pro AX
- Q-Flash Plus, rear-mounted M.2 for airflow
Networking
- ASRock X570 Phantom Gaming-ITX/TB3
- 1GbE (Intel I211AT), Intel Wi-Fi 6 (802.11ax), Bluetooth 5.2
- Gigabyte B550I AORUS Pro AX
- 2.5GbE (Realtek), Wi-Fi 6 (Intel AX200), Bluetooth 5
Special Features
- ASRock X570 Phantom Gaming-ITX/TB3
- Built-in Thunderbolt 3, single Hyper M.2 slot, LGA115x cooler mounting holes
- Gigabyte B550I AORUS Pro AX
- Rear M.2 slot keeps front airflow clear
Which one should you pick?
Choose ASRock X570 Phantom Gaming-ITX/TB3 if you want the higher memory slots (2 vs 2), the higher max memory (64 GB vs 64 GB) and the higher memory channels (2 vs 2).
Choose Gigabyte B550I AORUS Pro AX if you want the higher M.2 slots (2 vs 1).
Price comparison
| Retailer | ASRock X570 Phantom Gaming-ITX/TB3 | Gigabyte B550I AORUS Pro AX |
|---|---|---|
| Amazon | View on Amazon | |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.




