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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

  • Product nameXeon Silver 4309Y
  • CPU cores8-Core
  • CPU socketLGA 4189
  • Maximum turbo clock3.6 GHz
  • TDP rating105 W
  • Processor codenameIce Lake
  • 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.

How it compares

Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.

Price $499.99
Cheaper than about 74% of the 621 comparable items (median $1,561.99).
CPU cores 8-Core
Lower than about 90% of the 386 comparable items (median 24).
Maximum turbo clock 3.6 GHz
Lower than about 70% of the 327 comparable items (median 3.9 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineIntel Xeon Silver
Model nameBX806894309Y
Product nameXeon Silver 4309Y
Performance
Working frequency2.8 GHz
Processor
CPU cores8-Core
CPU socketLGA 4189
Maximum turbo clock3.6 GHz
TDP rating105 W
Processor codenameIce Lake
CPU threads16
Level 3 cache12 MB
64-bit capableYes
Hyper-ThreadingYes
Process node10 nm
Virtualization supportYes
CPU socket scalability2S
Maximum PCIe lanes64
Memory
Supported memory speedDDR4 2666
Max supported memory6 TB
Channel configuration8 Channel
Ports & slots
PCIe generation4.0
Size & build
Shipping weight0.20 kg
Package size140 × 114 × 51 mm
In the box
Included coolerNot included - Processor Only

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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