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Product comparison · 2 motherboards

ASUS B85-PLUS/USB 3.1 vs ASUS SABERTOOTH X99

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  • 51specifications compared
  • 28differ
  • 23identical
  • 40known for one product only

Key differences

The ASUS SABERTOOTH X99 has 4 more memory slots than the ASUS B85-PLUS/USB 3.1 (8 vs 4). The ASUS SABERTOOTH X99 has 32 GB more maximum internal memory than the ASUS B85-PLUS/USB 3.1 (64 GB vs 32 GB). The ASUS SABERTOOTH X99 has 1 more USB 2.0 connectors than the ASUS B85-PLUS/USB 3.1 (2 vs 1). Only the ASUS SABERTOOTH X99 has S/PDIF out connector. Processor socket: LGA 1150 (Socket H3) on the ASUS B85-PLUS/USB 3.1, LGA 2011-v3 on the ASUS SABERTOOTH X99.

  • Processor socket
    • LGA 1150 (Socket H3)
    • LGA 2011-v3
  • Supported memory types
    • DDR3-SDRAM
    • DDR4-SDRAM
  • Number of memory slots
    • 4
    • 8
  • Supported memory clock speeds
    • 1066,1333,1600 MHz
    • 2133,2400 MHz
  • Maximum internal memory
    • 32 GB
    • 64 GB
  • Supported storage drive interfaces
    • SATA II, SATA III
    • M.2, SATA III
  • USB 2.0 connectors
    • 1
    • 2
  • Number of SATA III connectors
    • 4
    • 8

Side by side

Differences highlightedShow differences only
91 specifications
A

ASUS

B85-PLUS/USB 3.1View product
B

ASUS

SABERTOOTH X99View product
Processor2 differ
Processor manufacturerIntelIntel
Processor socketDiffersLGA 1150 (Socket H3)LGA 2011-v3
Compatible processor seriesDiffersIntel® Celeron®, Intel® Pentium®Intel® Core™ i7
Maximum number of SMP processorsKnown for one1
Intel Core i3/i5/i7/i9 seriesKnown for onei3-4xxx, i5-4xxx, i7-4xxx
Memory4 differ
Supported memory typesDiffersDDR3-SDRAMDDR4-SDRAM
Number of memory slotsDiffers48
Memory slots typeDIMMDIMM
ECC сompatibilityNon-ECCNon-ECC
Supported memory clock speedsDiffers1066,1333,1600 MHz2133,2400 MHz
Maximum internal memoryDiffers32 GB64 GB
Unbuffered memoryYesYes
Memory channelsKnown for oneDual-channel
Storage controllers1 differ
Supported storage drive interfacesDiffersSATA II, SATA IIIM.2, SATA III
RAID levelsKnown for one0, 1, 5, 10
Graphics1 differ
Parallel processing technology supportDiffersQuad-GPU CrossFireX3-Way CrossFireX, 3-Way SLI, Quad-GPU CrossFireX, Quad-GPU SLI
Discrete graphics supportYesYes
Maximum graphics card memoryKnown for one1024 MB
Maximum resolutionKnown for one1920 x 1080 pixels
Internal I/O5 differ
USB 2.0 connectorsDiffers12
USB 3.2 Gen 1 (3.1 Gen 1) connectors22
Number of SATA III connectorsDiffers48
Number of SATA II connectorsDiffers20
Number of Parallel ATA connectorsKnown for one0
S/PDIF out connectorDiffersNoYes
Front panel audio connectorKnown for oneYes
ATX Power connector (24-pin)Known for oneYes
Number of EATX power connectors11
Power fan connectorKnown for oneYes
CPU fan connectorYesYes
Number of chassis fan connectorsDiffers24
Chassis intrusion connectorKnown for oneYes
Peripheral (Molex) power connectors (4-pin)Known for one4
EPS power connector (8-pin)Known for oneYes
Number of COM connectorsKnown for one1
TPM connectorKnown for oneYes
USB 3.2 Gen 2 (3.1 Gen 2) connectorsKnown for one0
Rear panel I/O ports7 differ
USB 2.0 ports quantityDiffers24
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers24
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers12
Ethernet LAN (RJ-45) portsDiffers12
eSATA ports quantityKnown for one0
PS/2 ports quantityDiffers20
Firewire (IEEE 1394) ports00
VGA (D-Sub) ports quantityDiffers10
HDMI ports quantityKnown for one0
DVI-D ports quantityDiffers10
S/PDIF out portYesYes
Digital audio optical outKnown for one1
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one0
Network1 differ
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
LAN controllerDiffersRealtek 8111GRIntel® I218-V, Realtek 8111GR
Features2 differ
Component forPCPC
Motherboard form factorATXATX
Motherboard chipset familyIntelIntel
Motherboard chipsetDiffersIntel® B85Intel® X99
Audio chipDiffersRealtek ALC887Realtek ALC1150
Audio output channels7.1 channels7.1 channels
Power source typeATXATX
Windows operating systems supportedWindows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, WinWindows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Win
CertificationKnown for oneWfM 2.0, DMI 2.7, WOL by PME, PXE
Overclocking featuresKnown for one8 +2 Digital Phase Power Design TUF Components ASUS DIGI+ Power Control Utility TUF Thermal Armor TUF Thermal Radar 2 with Thermistors TUF ICe "We Got Your Back!" Shape Force TUF Fortifier Dust Defenders with connector covers and back I/O dust filter TUF ESD Guards 2
Expansion slots2 differ
PCI Express x1 (Gen 2.x) slotsDiffers21
PCI Express x4 (Gen 2.x) slotsKnown for one1
PCI Express x16 (Gen 3.x) slotsDiffers13
PCI Express x16 (Gen 2.x) slotsKnown for one1
PCI slotsKnown for one3
BIOS2 differ
BIOS typeUEFI AMIUEFI AMI
BIOS memory sizeDiffers64 Mbit16 Mbit
ACPI versionDiffers4.0a5.0
Clear CMOS jumperYesYes
Processor special featuresidentical
Intel® Turbo Boost Technology2.02.0
Intel Extreme Memory Profile (XMP)Known for oneYes
Intel Rapid Storage TechnologyKnown for oneNo
Intel Stable Image Platform Program (SIPP)Known for oneNo
Intel Trusted Execution TechnologyKnown for oneNo
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Smart Response TechnologyKnown for oneNo
Processor with Intel Graphics Technology requiredKnown for oneYes
Weight & dimensions1 differ
Width305 mm305 mm
DepthDiffers221 mm244 mm
Packaging contentidentical
Cables includedSATASATA
Drivers includedKnown for oneYes
Bundled softwareKnown for oneAnti-virus, ASUS/TUF CPU-Z, ASUS Utilities
Other featuresidentical
BIOS switch buttonKnown for oneYes
Quick installation guideKnown for oneYes
Intel® vPro™ Platform EligibilityKnown for oneNo

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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