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Compare 4 products

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Asus Prime A320M-K Motherboard
Asus Prime A320M-K
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Asus Prime B450M-A Motherboard
Asus Prime B450M-A
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MSI B450-A Pro - ATX Motherboard
MSI B450-A Pro - ATX
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MSI B450-A Pro MAX Motherboard
MSI B450-A Pro MAX
Editiorial reviews
1
1 editorial reviews
ASUS isn't always known for their bang for buck, but the ASUS PRIME B450M-K is a perfect example of it. Here's our review of this great entry-level board.Read more
Read editorial reviews
User rating
109
3.7 out of 5
109 user ratings
5 stars
33 %
4 stars
20 %
3 stars
28 %
2 stars
14 %
1 stars
2 %
78
3.7 out of 5
78 user ratings
5 stars
24 %
4 stars
32 %
3 stars
30 %
2 stars
11 %
1 stars
1 %
43
4.0 out of 5
43 user ratings
5 stars
20 %
4 stars
53 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
59
4.0 out of 5
59 user ratings
5 stars
38 %
4 stars
37 %
3 stars
15 %
2 stars
5 %
1 stars
3 %

General

Motherboard typeMicro-ATXMicro-ATXATXATX
Processor socketSocket AM4Socket AM4Socket AM4Socket AM4
Cooling type
N/A
N/A
Passive
N/A

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2933 MHz
  • 3200 MHz
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
  • 2400 MHz
  • 1866 MHz
  • 2133 MHz
  • 2667 MHz
  • 2800 MHz
  • 2933 MHz
  • 3000 MHz
  • 2667 MHz
  • 3200 MHz
  • 3466 MHz
  • 3066 MHz
  • 2400 MHz
  • 1866 MHz
  • 2133 MHz
  • 2667 MHz
  • 2800 MHz
  • 2933 MHz
  • 3000 MHz
  • 2667 MHz
  • 3200 MHz
  • 3466 MHz
  • 3733 MHz
  • 3866 MHz
  • 4000 MHz
  • 4133 MHz
  • 3066 MHz
RAM technologyDDR4DDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMMDIMM
Maximum RAM size32 GB64 GB64 GB64 GB
Number of memory slots2444
Memory channelsDualDualDual
N/A
ECCyesyesyes
N/A
Non-ECCyes
N/A
yes
N/A
Unbuffered memory
N/A
yes
N/A
N/A

Audio properties

Audio codecRealtek ALC887Realtek ALC887Realtek ALC892Realtek ALC892
Audio output channels7.17.17.17.1

Technical details

Compatible processor seriesAMD RyzenAMD RyzenAMD RyzenAMD Ryzen
Maximum number of processors1111
Maximum number of SMP processors
N/A
11
N/A

Rear panel I/O ports

S/PDIF out portyes
N/A
N/A
N/A
HDMI ports quantity1111
HDMI version1.4b2.0b
N/A
N/A
Ethernet LAN (RJ-45) ports1111
PS/2 ports quantity221
N/A
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4422
VGA (D-Sub) ports quantity1111
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
N/A
222
DVI-D ports quantity
N/A
111
Microphone input
N/A
N/A
yes
N/A
Headphone outputs
N/A
N/A
1
N/A

Network

Ethernet LAN (Network)yesyesyesyes
LAN controllerRealtek RTL8111HRealtek RTL8111HRealtek RTL8111HRealtek 8111H
Ethernet interface typeGigabit EthernetGigabit EthernetGigabit EthernetGigabit Ethernet
Wi-Fi
N/A
N/A
N/A
no

Dimensions

Width8.9 in9.61 in12.01 in12.01 in
Depth8.7 in9.45 in9.61 in9.61 in

Often compared with Asus Prime A320M-K

Asus Prime A320M-K Motherboard
Asus Prime A320M-E
AsusPrime A320M-K
AsusPrime A320M-E
Asus Prime A320M-K Motherboard
Asus Prime B450M-A
AsusPrime A320M-K
AsusPrime B450M-A

Often compared with Asus Prime B450M-A

Asus Prime B450M-A Motherboard
Asus Prime A320M-K
AsusPrime B450M-A
AsusPrime A320M-K
Asus Prime B450M-A Motherboard
Asus Prime B450M-K
AsusPrime B450M-A
AsusPrime B450M-K
Asus Prime B450M-A Motherboard
ASRock B450M-HDV
AsusPrime B450M-A
ASRockB450M-HDV
Asus Prime B450M-A Motherboard
ASRock B450 Pro4
AsusPrime B450M-A
ASRockB450 Pro4
Asus Prime B450M-A Motherboard
Asus Prime A320M-A
AsusPrime B450M-A
AsusPrime A320M-A
Asus Prime B450M-A Motherboard
Asus TUF B450-PLUS Gaming
AsusPrime B450M-A
AsusTUF B450-PLUS Gaming
Asus Prime B450M-A Motherboard
ASRock B450M PRO4
AsusPrime B450M-A
ASRockB450M PRO4

Often compared with MSI B450-A Pro MAX

MSI B450-A Pro MAX Motherboard
Asus Prime B450-PLUS
MSIB450-A Pro MAX
AsusPrime B450-PLUS