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Intel Xeon Silver 4309Y server processor in LGA 4189 socket, green PCB with gold contacts, silver metal heatspreader

Intel

Intel Xeon Silver 4309Y 8-core 2.8 GHz server processor BX806894309Y

SKU CH-GEX0-RZ2PW MPN BX806894309Y

Eight-core server CPU with 16 threads, 2.8 GHz base clock and 12 MB L3 cache for dual-socket platforms

  • NameXeon Silver 4309Y
  • CPU Socket TypeLGA 4189
  • Core NameIce Lake
  • # of Cores8-Core
  • # of Threads16
  • Operating Frequency2.8 GHz
  • 8 cores and 16 threads handle parallel workloads efficiently
  • 8 GHz base and 3.60 GHz max turbo deliver responsive compute performance
  • 12 MB L3 cache reduces latency for frequently accessed data
  • 8-channel DDR4 2666 controller supports up to 6 TB memory capacity
  • 105 W TDP in LGA 4189 socket enables 2-socket scalability with PCIe 4.0

Socket LGA 4189 8-core server processor

The Intel Xeon Silver 4309Y is an 8-core, 16-thread CPU built for dual-socket server platforms. It operates at a base frequency of 2.8 GHz with a maximum turbo of 3.60 GHz. The 10 nm Ice Lake architecture delivers 12 MB of L3 cache and supports 64-bit computing with Hyper-Threading. It is sold new without a cooling device.

Eight-channel DDR4-2666 memory controller

This processor integrates an eight-channel memory controller rated for DDR4-2666 speeds and a maximum capacity of 6 TB. It provides 64 lanes of PCI Express 4.0 connectivity for high-bandwidth I/O. The thermal design power is rated at 105 W, requiring adequate server-grade cooling. Virtualization technology and 2S scalability are supported for dense workloads.

Suited for dual-socket Ice Lake deployments

This part fits builders populating LGA 4189 motherboards that support the Xeon Silver 4300 series and 105 W TDPs. It is not for systems limited to single-socket operation or platforms that cannot supply eight memory channels. Buyers needing higher core counts or different socket types should look at other Xeon models.

Highlights

  • 8 cores and 16 threads handle parallel workloads efficiently
  • 8 GHz base and 3.60 GHz max turbo deliver responsive compute performance
  • 12 MB L3 cache reduces latency for frequently accessed data
  • 8-channel DDR4 2666 controller supports up to 6 TB memory capacity
  • 105 W TDP in LGA 4189 socket enables 2-socket scalability with PCIe 4.0

Specifications

BrandIntel
SeriesIntel Xeon Silver
NameXeon Silver 4309Y
ModelBX806894309Y
CPU Socket TypeLGA 4189
Core NameIce Lake
# of Cores8-Core
# of Threads16
Operating Frequency2.8 GHz
Max Turbo Frequency3.60 GHz
L3 Cache12MB
64-Bit SupportYes
Hyper-Threading SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller SpeedDDR4 2666
Maximum Memory Capacity6TB
Memory Channel8 Channel
Virtualization Technology SupportYes
Scalability2S
PCI Express Revision4.0
Max # of PCI Express Lanes64
Thermal Design Power105W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.20 kg
Package size140 × 114 × 51 mm

Questions about this item

How does the 3.60 GHz max turbo frequency behave inside a live server?

The 3.60 GHz max turbo frequency is the highest single-core speed the 8-core Ice Lake processor can reach when power and thermal headroom allow. With a 105 W TDP and 12 MB L3 cache, sustained all-core speeds will sit below this peak depending on workload and cooling.

What does PCI Express 4.0 with 64 lanes cap in practice?

PCI Express 4.0 provides 64 lanes from the CPU at 16 GT/s per lane. The lane count limits how many x16 GPUs, x4 storage devices or x8 network cards can run simultaneously at full width.

What does the LGA 4189 socket require for mounting?

The LGA 4189 socket uses a land-grid array with 4189 contacts and a standardized independent loading mechanism. A cooler rated for at least 105 W TDP and the correct ILM hardware are required; no cooling device is included.

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