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Product comparison · 2 motherboards

ASUS PRIME B660M-A WIFI D4 vs ASUS ROG STRIX B660-I GAMING WIFI

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  • 65specifications compared
  • 20differ
  • 45identical
  • 10known for one product only

Key differences

  • Supported memory types
    • DDR4-SDRAM
    • DDR5-SDRAM
  • Number of memory slots
    • 4
    • 2
  • Maximum internal memory
    • 128 GB
    • 64 GB
  • Number of displays supported
    • 3
    • 2
  • USB 2.0 connectors
    • 3
    • 1
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 3
    • 1
  • USB 3.2 Gen 2 (3.1 Gen 2) connectors
    • 0
    • 1
  • USB 2.0 ports quantity
    • 4
    • 3

Side by side

Differences highlightedShow differences only
75 specifications
A

ASUS

PRIME B660M-A WIFI D4View product
B

ASUS

ROG STRIX B660-I GAMING WIFIView product
Processoridentical
Processor manufacturerIntelIntel
Processor socketLGA 1700LGA 1700
Compatible processor seriesIntel® Celeron®, Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7, Intel® Core™ i9, Intel® Pentium®, Intel® Pentium® GoldIntel® Celeron®, Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7, Intel® Core™ i9, Intel® Pentium®, Intel® Pentium® Gold
Maximum number of SMP processors11
Memory4 differ
Supported memory typesDiffersDDR4-SDRAMDDR5-SDRAM
Number of memory slotsDiffers42
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityNon-ECCNon-ECC
Supported memory clock speedsDiffers2133,2400,2666,2800,2933,3000,3200,3333,3400,3466,3600,3733,4000,4400,4600,4800,5000,5333 MHz4800,5000,5200,5400,5600,5800,6000,6200 MHz
Maximum internal memoryDiffers128 GB64 GB
Unbuffered memoryYesYes
Storage controllersidentical
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATAM.2, SATA
RAID levels0, 1, 5, 100, 1, 5, 10
Graphics1 differ
Number of displays supportedDiffers32
Internal I/O3 differ
USB 2.0 connectorsDiffers31
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers31
USB 3.2 Gen 2 (3.1 Gen 2) connectorsDiffers01
Number of SATA III connectors44
S/PDIF out connectorYesYes
Front panel audio connectorYesYes
ATX Power connector (24-pin)YesYes
CPU fan connectorYesYes
Number of chassis fan connectorsKnown for one2
EPS power connector (8-pin)YesYes
12V power connectorYesYes
Number of COM connectorsKnown for one1
RGB LED pin headerYesYes
Rear panel I/O ports5 differ
USB 2.0 ports quantityDiffers43
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers03
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers01
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers20
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Ethernet LAN (RJ-45) ports11
PS/2 ports quantityKnown for one1
VGA (D-Sub) ports quantity00
HDMI ports quantityDiffers21
HDMI version2.12.1
DVI-D ports quantity00
DisplayPorts quantity11
DisplayPort version1.41.4
Headphone outputs11
Microphone inYesYes
USB 3.2 Gen 2x2 Type-C ports quantityKnown for one1
S/PDIF out portKnown for oneYes
USB connector typeKnown for oneUSB Type-A, USB Type-C
Network1 differ
Ethernet LANYesYes
Ethernet interface typeDiffersGigabit Ethernet2.5 Gigabit Ethernet
Wi-FiYesYes
Top Wi-Fi standardWi-Fi 6 (802.11ax)Wi-Fi 6 (802.11ax)
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
BluetoothYesYes
Bluetooth version5.25.2
LAN controllerKnown for oneIntel I225-V
Features2 differ
Component forPCPC
Motherboard form factorDiffersmicro ATXmini ITX
Motherboard chipset familyIntelIntel
Motherboard chipsetIntel B660Intel B660
Audio chipDiffersRealtek ALC897SupremeFX S1220A
Audio output channels7.1 channels7.1 channels
Windows operating systems supportedWindows 10 x64, Windows 11 x64Windows 10 x64, Windows 11 x64
Expansion slotsidentical
PCI Express x16 (Gen 3.x) slotsKnown for one2
PCI Express x16 (Gen 4.x) slotsKnown for one1
Number of M.2 (M) slots22
PCI Express x16 (Gen 5.x) slotsKnown for one1
BIOSidentical
BIOS typeUEFI AMIUEFI AMI
BIOS memory size128 Mbit128 Mbit
Logistics dataidentical
Harmonized System (HS) code8473302084733020
Weight & dimensions3 differ
WidthDiffers244 mm170 mm
DepthDiffers244 mm170 mm
HeightDiffers60 mm94 mm
Packaging contentidentical
Cables includedSATASATA
Drivers includedYesYes
Other features1 differ
WeightDiffers819 g1 kg

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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