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Compare MSI X399 SLI PLUS vs X299 SLI PLUS

MSI X399 SLI PLUS and MSI X299 SLI PLUS are both motherboards with the same Form factor (ATX), Audio Chipset (Realtek ALC1220) and Audio Channels (7.1-Channel High Definition Audio, Supports S/P...). The main differences are in Socket, Chipset, Supported Memory and ECC RAM Support.
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Brand
MSI
Brand
MSI
Model
X399 SLI PLUS
Model
X299 SLI PLUS
Release Date
📅 November 2017
Release Date
📅 June 2017
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★☆
(9 reviews)
User reviews
★★★☆☆
(22 reviews)
Price history
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Price history
View Details ►
Compatible PC parts
Compatible PC parts
Series
Series
PRO
Socket
sTR4
Socket
LGA2066
Form factor
ATX
Form factor
ATX
Chipset
AMD X399
Chipset
Intel X299
Supported Memory
DDR4
2133Mhz 2400Mhz 2666Mhz 2800Mhz 2933Mhz 3200Mhz 3333Mhz 3466Mhz 3600Mhz
Supported Memory
DDR4
2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz 3300Mhz 3333Mhz 3400Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support
Yes
* ECC memory support also depends on the CPU memory controller
ECC RAM Support
No
Audio Chipset
Realtek ALC1220
Audio Chipset
Realtek ALC1220
Audio Channels
7.1-Channel High Definition Audio
Supports S/PDIF output
Audio Channels
7.1-Channel High Definition Audio
Supports S/PDIF output
LAN Chipset
Intel I211
LAN Chipset
Intel I219-V
Max LAN Speed
10/100/1000Mbps
Max LAN Speed
Dual 10/100/1000Mbps
SLI Support
Yes
SLI Support
Yes
CrossFire Support
Yes
CrossFire Support
Yes
RAID Support
Yes
RAID Support
Yes
Back Connect
No
Back Connect
No
Back I/O Ports
-
Back I/O Ports
  • 1 x PS/2 keyboard/mouse combo port
  • 4 x USB 2.0 Type-A ports
  • 4 x USB 3.1 Gen1 Type-A ports
  • 2 x LAN (RJ45) ports
  • 1 x USB 3.1 Gen2 Type-A port
  • 1 x USB 3.1 Gen2 Type-C port
  • 5 x OFC audio jacks
  • 1 x Optical S/PDIF OUT connector
Wireless LAN
No
Wireless LAN
No
PCI-Express x16 Slots
4
PCI-Express x16 Slots
4
PCI-Express x4 Slots
0
PCI-Express x4 Slots
0
PCI-Express x1 Slots
2
PCI-Express x1 Slots
2
SATA 6 Gbps Ports
8
SATA 6 Gbps Ports
8
SATA Express Ports
0
SATA Express Ports
0
M.2 Ports
3
M.2 Ports
2
M.2 Devices support
  • 2242 / 2260 / 2280 - M Key
  • 2242 / 2260 / 2280 / 22110 - M Key
  • 2242 / 2260 / 2280 - M Key
M.2 Devices support
  • 2242 / 2260 / 2280 - M Key
  • 2242 / 2260 / 2280 / 22110 - M Key
RAM Slots
8
RAM Slots
8
Maximum Supported RAM
128 GB
Maximum Supported RAM
128 GB
Onboard USB 2.0
2
Onboard USB 2.0
2
Onboard USB 3.2 Gen 1
2
Onboard USB 3.2 Gen 1
2
Onboard USB 3.2 Gen 2
1
Onboard USB 3.2 Gen 2
1
Onboard USB 3.2 Gen 2x2
0
Onboard USB 3.2 Gen 2x2
0

Comparison and key differences summary

⛔ You are comparing motherboards with different sockets. They cannot support the same CPUs. Try to compare motherboards within the same platform.

Reasons to buy the MSI X399 SLI PLUS:

  • +1 Ports M.2

Buy now

Reasons to buy the MSI X299 SLI PLUS:

  • 79% cheaper, you can save $739.13
  • Supports the following RAM types: DDR4 3733MHz, 3866MHz, 4000MHz, 4133MHz, 4266MHz

Buy now

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