VMG1312 Vs VMG3925: Difference between revisions

Revision as of 12:08, 15 March 2018

Thais page describes the differences between the ZyXEL VMG1312-B10D and the ZyXEL VMG3925-B10B routers.

The main differences are:

VMG3925 is more expensive
VMG3925 has 2.4 and 5G WiFi radio, the VMG1312 has only 2.4G
VMG3925 has Gigabit Ethernet ports, the VMG1312 has 100M ports
VMG3925 is physically larger, even though they are a similar shape
VMG3925 has a dedicated WAN Ethernet port, the VMG1312 has a shared LAN/WAN Ethernet port
VMG3925 has a better wall mount

Detailed differences

	VMG1312-B10D	VMG3925-B10B

Dimensions with stand (mm)	160Wx115Hx60D	185Wx147Hx85D
Wall mountable	Suboptimal	Yes
PSU Rating	12V 1A	12V 2A
CPU/SoC	Broadcom BCM63381	Broadcom BCM63168
Architecture	BMIPS4350	BMIPS4350
CPU Cores	2	2
CPU Frequency	600MHz	400MHz
RAM	64MB	128MB
Flash	128MB	128MB
Switch chipset	Onboard the BCM63381 SoC	BCM53125(Discrete)
LAN Ethernet	10/100M (To SoC)	10/100/1000M (To Switchchip)
WAN Ethernet	Virtual port from LAN 4	Dedicated 10/100/1000M port (To Switchchip)
Wireless Protocols	802.11 b/g/n	802.11 a/b/g/n/ac
2.4GHz Wireless	Yes	Yes
2.4GHz radio chains	2	2
2.4GHz chipset	BCM43227 (Discrete)	BCM6362 (On BCM63168 SoC)
5GHz Wireless	No	Yes
5GHz radio chains	N/A	3
5GHz chipset	N/A	Broadcom BCM43602 (Discrete) SKY85712-21 RF Front-End
xDSL Chipset	Broadcom BCM6303 ADSL/VDSL	Broadcom BVM6302 ADSL/VDSL
USB	Yes, 2.0	Yes, 2.0

You may note that the VMG3925-B10B has a slower CPU, however it also contains more dedicated hardware for packet processing compared to the VMG1312-B10D which needed the extra CPU clock cycles to deal with processing packets.

The VMG3925-B10B's SoC contains 1 Gigabit PHY, which connects to the Switch chip for the WAN and LAN ports. Radios are connected to the SoC, so packets passing through LAN<>WLAN or WAN<>WLAN would be limited to the bandwidth of the single Gigabit PHY inside.

@@ Line 23: / Line 23: @@
 | PSU Rating ||   12V 1A  ||  12V 2A
 |-
-| CPU/SoC || Broadcom BCM63381 || Broadcom BCM63168
+| CPU/SoC ||[https://www.broadcom.com/products/broadband/xdsl/bcm63381 Broadcom BCM63381] || [https://www.broadcom.com/products/broadband/xdsl/bcm63168 Broadcom BCM63168]
 |-
 | Architecture || BMIPS4350 || BMIPS4350
@@ Line 35: / Line 35: @@
 | Flash || 128MB|| 128MB
 |-
-| Switch chipset || Onboard the BCM63381 SoC || BCM53125 (Discrete)
+| Switch chipset || Onboard the BCM63381 SoC ||[https://www.broadcom.com/products/ethernet-connectivity/switching/roboswitch/bcm53125/ BCM53125](Discrete)
 |-
 | LAN Ethernet || 10/100M <br/>(To SoC)|| 10/100/1000M <br/> (To Switchchip)
@@ Line 47: / Line 47: @@
 | 2.4GHz radio chains || 2 || 2
 |-
-| 2.4GHz chipset || BCM43227 (Discrete) || BCM6362 (On BCM63168 SoC)
+| 2.4GHz chipset || [https://www.broadcom.com/products/wireless/wireless-lan-infrastructure/bcm43224 BCM43227] (Discrete) || [https://www.broadcom.com/products/broadband/xdsl/bcm6362 BCM6362] (On BCM63168 SoC)
 |-
 | 5GHz Wireless || No || Yes
@@ Line 53: / Line 53: @@
 | 5GHz radio chains || N/A || 3
 |-
-| 5GHz chipset || N/A || Broadcom BCM43602 (Discrete)<br/>SKY85712-21 RF Front-End
+| 5GHz chipset || N/A ||[https://www.broadcom.com/products/wireless/wireless-lan-infrastructure/bcm4360 Broadcom BCM43602] (Discrete)<br/>[http://www.skyworksinc.com/Product/1791/SKY85712-21 SKY85712-21 ]RF Front-End
 |-
 | xDSL Chipset || Broadcom BCM6303 ADSL/VDSL || Broadcom BVM6302 ADSL/VDSL