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Intel
Intel Xeon w5-2455X desktop processor 12-core 3.20 GHz 30 MB L3 LGA 4677 BX807132455X
12-core Xeon desktop processor with 3.2 GHz base frequency, 4.6 GHz max turbo, 30 MB L3 cache and support for 2 TB DDR5-4800 ECC memory
- Processors TypeDesktop
- NameXeon w5-2455X
- CPU Socket TypeLGA 4677
- Core NameSapphire Rapids
- # of Cores12-Core (12P+0E)
- # of Threads24-Threads
- 12 cores and 24 threads accelerate multi-threaded workloads
- 30 MB L3 cache reduces latency for complex tasks
- 60 GHz max turbo frequency boosts single-thread speed
- DDR5 4800 four-channel memory supports up to 2 TB ECC RAM
- 64 PCIe 5.0 lanes enable high-bandwidth expansion
Workstation CPU for LGA 4677 platforms
The Intel Xeon w5-2455X is a 12-core desktop processor built for workstations that need reliable multi-threaded throughput. It runs at a 3.20 GHz base frequency and reaches 4.60 GHz with Intel Turbo Boost Max Technology 3.0. The chip provides 24 threads, 30 MB L3 cache and a 10 nm manufacturing process. It supports DDR5 4800 memory across four channels up to 2 TB with ECC, plus 64 lanes of PCI Express 5.0 for high-bandwidth add-in cards.
Upgrade path from earlier Xeon W or Core models
Moving to this Sapphire Rapids part makes sense when your current platform cannot deliver enough PCIe 5.0 lanes, DDR5 capacity or AVX-512 acceleration for rendering, simulation or virtualization workloads. The 200 W base and 240 W max turbo power envelope requires a motherboard and cooler rated for that thermal load. The jump is worth it if you need the 12P+0E core layout and integrated accelerators such as Intel Data Streaming Accelerator for storage-heavy pipelines.
Verify socket, chipset, memory and cooling before
Confirm your motherboard uses the LGA 4677 socket and a compatible workstation chipset with DDR5 slots wired for four channels. Ensure the BIOS revision lists support for this specific model. Plan for a cooling solution rated at or above 240 W TDP since no cooler is included. Check that your power supply can sustain the 240 W max turbo figure and that the chassis provides adequate airflow for sustained all-core operation.
Highlights
- 12 cores and 24 threads accelerate multi-threaded workloads
- 30 MB L3 cache reduces latency for complex tasks
- 60 GHz max turbo frequency boosts single-thread speed
- DDR5 4800 four-channel memory supports up to 2 TB ECC RAM
- 64 PCIe 5.0 lanes enable high-bandwidth expansion
Specifications
| Brand | Intel |
|---|---|
| Processors Type | Desktop |
| Series | Xeon |
| Name | Xeon w5-2455X |
| Model | BX807132455X |
| CPU Socket Type | LGA 4677 |
| Core Name | Sapphire Rapids |
| # of Cores | 12-Core (12P+0E) |
| # of Threads | 24-Threads |
| Operating Frequency | 3.2 GHz |
| Max Turbo Frequency | Max Turbo Frequency: 4.60 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.60 GHz Intel Turbo Boost Technology 2.0 Frequency: 4.40 GHz |
| L3 Cache | 30MB |
| Manufacturing Tech | 10nm |
| Instruction Set | 64-Bit |
| Integrated Memory Controller Speed | 4800 MHz |
| Memory Types | DDR5 4800 |
| Memory Channel | 4 |
| Max Memory Size | 2TB |
| ECC Memory | Supported |
| Virtualization Technology Support | Yes |
| PCI Express Revision | 5.0 |
| Max Number of PCI Express Lanes | 64 |
| Multimedia Instruction | Intel SSE4.1, Intel AMX, Intel SSE4.2, Intel AVX2, Intel AVX-512 |
| Thermal Design Power | 200W |
| Max Turbo Power | 240W |
| Cooling Device | Cooling device not included - Processor Only |
| Advanced Technologies | Intel QuickAssist Technology (QAT): 0 default devices Intel Dynamic Load Balancer (DLB): 0 default devices Intel Data Streaming Accelerator (DSA): 1 default devices Intel In-memory Analytics Accelerator (IAA): 0 default devices Intel Advanced Matrix Extensions (AMX): Yes Intel Deep Learning Boost (Intel DL Boost) on CPU: Yes Intel Resource Director Technology (Intel RDT): No Intel Speed Shift Technology: Yes Intel Turbo Boost Max Technology 3.0: Yes Intel Turbo Boost Technology: 2.0 Intel Hyper-Threading Technology: Yes Intel Transactional Synchronization Extensions: Yes Intel 64: Ye |
| Security & Reliability | Intel vPro Eligibility: Intel vPro Enterprise Intel Threat Detection Technology (TDT): No Intel Active Management Technology (AMT) : Yes Intel Remote Platform Erase (RPE): No Intel One-Click Recovery: No Intel QuickAssist Software Acceleration: No Intel Platform Firmware Resilience Support: Yes Intel Control-Flow Enforcement Technology : Yes Intel Total Memory Encryption - Multi Key: No Intel Total Memory Encryption : Yes Intel AES New Instructions : Yes Intel Software Guard Extensions (Intel SGX) : No Intel OS Guard: Yes Intel Trusted Execution Technology : Yes Execute Disable Bit : |
| Shipping weight | 0.18 kg |
| Package size | 140 × 114 × 46 mm |
Questions about this item
What motherboard socket is required for the LGA 4677 package of the Xeon w5-2455X?
The processor fits only motherboards with an LGA 4677 socket. Verify the board lists this exact socket before purchase.
How is the Xeon w5-2455X installed and what step is often missed?
Align the notches, lower the CPU into the LGA 4677 socket, close the retention lever, then apply thermal paste and mount a cooler rated for 240 W max turbo power.
What ongoing maintenance does the Xeon w5-2455X need after installation?
Clean the cooler heatsink and fan periodically to maintain airflow for the 200 W base / 240 W turbo thermal envelope. Replace thermal paste if temperatures rise over time.
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