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Deal.ai › Gigabyte › Motherboards
Gigabyte
Gigabyte X299X Extended ATX Motherboard

Gigabyte X299X Extended ATX Motherboard

4(1 rating)

Best price now

$1,887.88at NeweggChecked Nov 10

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Price facts

  • Last seen at $1,887.88 at Newegg on Nov 10.

Our take on the Gigabyte X299X Extended ATX Motherboard

This is a Gigabyte E-ATX board built on Intel's X299 chipset and Socket 2066, aimed at Core X-series and Xeon W CPUs. It stands out for its 8 DDR4 slots (up to 256 GB at 4333 MHz), four PCIe x16 slots with SLI and CrossFire support, three M.2 slots and built-in Wi-Fi and Bluetooth. It suits workstation and enthusiast builders who need many cores, lots of memory and multiple GPUs. Against newer X299 boards it is a solid, feature-dense option, but it is a niche platform: Socket 2066 is end-of-life, so buyers weigh it against modern mainstream boards with faster PCIe and cheaper CPUs.

Best forWorkstation builders running many-core Intel X-series CPUsUsers who need 128 GB or more of RAMMulti-GPU setups with SLI or CrossFireEnthusiasts with an existing Socket 2066 CPU
Pros
  • 8 DIMM slots support up to 256 GB of DDR4
  • Four PCIe x16 slots for multi-GPU builds
  • Three M.2 slots cover 2242 to 22110 drives
  • Built-in Wi-Fi and Bluetooth
  • USB-C header and USB 3.2 Gen 2 connectivity
  • RAID 0/1/5/10 support
Cons
  • Socket 2066 is a dead-end platform with no upgrade path
  • PCIe 3.0 only, slower than current PCIe 4.0 and 5.0 boards
  • Only two 4-pin fan headers, tight for a large case
  • E-ATX size needs a full-tower case
  • Passive chipset cooling can run warm under heavy load

Gigabyte X299X Extended ATX Motherboard prices at every store

  • NeweggNew

    In stock

    $1,887.88Free shippingChecked Nov 10
    Visit Newegg

Store links may earn us a commission. Price via Klarna.

Gigabyte X299X Extended ATX Motherboard price history

Lowest price we've seen: $1,887.88 on Nov 10 at Newegg. Tracked across 1 store since Nov 10.

What reviewers say

Owners of X299 boards like this one generally praise the memory capacity and slot count for workstation work, while criticising the platform's age and the sparse fan headers. Reception is limited because the platform is niche.

What people mention
  • Memory capacityPraisedOwners value the eight DIMM slots for running large RAM kits in workstation builds.
  • Expansion slotsPraisedFour PCIe x16 slots and three M.2 slots are seen as generous for multi-GPU and storage-heavy setups.
  • Fan headersCriticisedBuyers note only two 4-pin fan connectors, which forces splitters or a hub in big cases.
  • Platform ageCriticisedReviewers point out that Socket 2066 and PCIe 3.0 are outdated next to current platforms.
  • ThermalsMixedSome owners report warm chipset and VRM temperatures under sustained load.

Specifications

Connections
Optical S/PDIF, USB-C, USB-A, DisplayPort, RJ45 (LAN)Source
Bluetooth
YesSource
Internal Connections
SATA, M.2, USB 3.2 Gen 2 Type-C HeaderSource
Chipset
Intel X299Source

Questions and answers

Which CPUs fit this board?
It uses Intel Socket 2066 and the X299 chipset, so it takes Core X-series and Xeon W processors for that socket. It does not fit mainstream LGA 1151 or 1200 chips.
How much memory can it hold?
Eight DDR4 slots support up to 256 GB, with rated speeds up to 4333 MHz. High-capacity kits at that speed may need manual tuning.
Does it support multiple graphics cards?
Yes. It has four PCIe x16 slots and supports both SLI and CrossFire. Check the lane split in the manual before planning a multi-GPU build.
How many M.2 drives can I install?
Three M.2 slots accept 2242, 2260, 2280 and 22110 drives. Some slots may share lanes with SATA or PCIe slots, so read the manual.
Is Wi-Fi built in?
Yes, the board has onboard Wi-Fi and Bluetooth, plus an RJ45 LAN port and optical S/PDIF audio out.
What case size does it need?
It is E-ATX, so it needs a case that lists E-ATX support, usually a full tower. Standard ATX cases will not fit it.
Where is the Gigabyte X299X Extended ATX Motherboard cheapest?
At Newegg, for $1,887.88, as of our latest check.
What do buyers say about the Gigabyte X299X Extended ATX Motherboard?
Rated 4 out of 5 from 1 ratings.

Stores we've priced the Gigabyte X299X Extended ATX Motherboard at

  • Newegg deals and prices

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M.2 Form Factor
2280, 2242, 2260, 22110Source
Processor
IntelSource
Memory Slots
8Source
Memory Type
DDR4Source
Memory Speed (max) (MHz)
4333Source
Multiple GPU Technology
CrossFire, SLISource
M.2
YesSource
Form Factor
E-ATXSource
Integrated Processor
NoSource
Expansion Slots
PCIe x16Source
M.2 Key Type
M KeySource
Number of PCIe x16 (pcs)
4Source
U.2
NoSource
RAID Controller
YesSource
Type of RAID
RAID 10, RAID 5, RAID 0, RAID 1Source
Number of M.2 (pcs)
3Source
Cooling
PassiveSource
Memory Size (max)
256 GBSource
Wi-Fi
YesSource
SATA Version
SATA III (6.0 Gbit/s)Source
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