Intel Xeon W5-2455X server processor PK8071305127200
12-core Xeon server processor with 3.2 GHz base, 4.6 GHz turbo, 30 MB L3 cache, DDR5-4800 quad-channel support and 64 PCIe 5.0 lanes
- Product nameXeon W5-2455X
- CPU cores12-Core
- CPU socketLGA 4677
- Maximum turbo clock4.6 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.6
- TDP ratingProcessor Base Power: 200 W Maximum Turbo Power: 240 W
- Processor codenameSapphire Rapids
- 12 cores and 24 threads accelerate multi-threaded workloads
- 2 GHz base with 4.60 GHz max turbo boosts single-thread speed
- 30 MB L3 cache reduces latency for large datasets
- DDR5 4800 quad-channel controller supports up to 2 TB memory
- PCIe 5.0 with 64 lanes enables high-bandwidth I/O expansion
Intel Xeon W5-2455X 12-Core Server Processor
This Intel Xeon W5-2455X is a 12-core, 24-thread server processor built for the LGA 4677 socket. It operates at a base frequency of 3.2 GHz and reaches a maximum turbo frequency of 4.60 GHz with Intel Turbo Boost Max Technology 3.0. The chip provides 30 MB of L3 cache, quad-channel DDR5-4800 memory support up to 2 TB, and 64 lanes of PCI Express 5.0 connectivity. It is manufactured on a 7 nm process with a base power of 200 W and a maximum turbo power of 240 W.
Suited for workstations needing high core counts
This processor suits professionals running multi-threaded workloads such as rendering, simulation, or virtualization that benefit from 12 cores, 24 threads, and quad-channel DDR5 memory. The 64 PCIe 5.0 lanes support high-speed storage and accelerator cards. Buyers who need fewer cores, lower power draw, or compatibility with older motherboards should look at alternative products. Systems must provide cooling capable of handling up to 240 W turbo power and a motherboard with the LGA 4677 socket.
LGA 4677 socket requirement
The single specification that decides fit is the CPU socket type: this processor only installs in an LGA 4677 socket. No other socket will accept it. Verify that your motherboard explicitly lists LGA 4677 support before purchase.
How it compares
Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.
- Price $853.99
- Cheaper than about 63% of the 621 comparable items (median $1,561.99).
- CPU cores 12-Core
- Lower than about 80% of the 386 comparable items (median 24).
- Maximum turbo clock 4.6 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.6 GHz Intel Turbo Boost Technology 2.0 Frequency: 4.4 GHz
- Higher than about 86% 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 name | Intel |
| Product line | Intel Xeon W |
| Model name | PK8071305127200 |
| Product name | Xeon W5-2455X |
| Performance | |
| Working frequency | 3.2 GHz |
| Processor | |
| CPU cores | 12-Core |
| CPU socket | LGA 4677 |
| Maximum turbo clock | 4.6 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.6 GHz Intel Turbo Boost Technology 2.0 Frequency: 4.4 GHz |
| TDP rating | Processor Base Power: 200 W Maximum Turbo Power: 240 W |
| Processor codename | Sapphire Rapids |
| CPU threads | 24 |
| Level 3 cache | 30 MB |
| 64-bit capable | Yes |
| Hyper-Threading | Yes |
| Process node | 7 nm |
| Virtualization support | Yes |
| Maximum PCIe lanes | 64 |
| Memory | |
| Supported memory speed | DDR5 4800 |
| Max supported memory | 2 TB |
| Channel configuration | Quad Channel |
| Ports & slots | |
| PCIe generation | 5.0 |
| Size & build | |
| Shipping weight | 1.14 kg |
| Package size | 195 × 147 × 130 mm |
Questions about this item
Which motherboard socket and memory type do I need to install this Xeon W5-2455X?
The processor fits an LGA 4677 socket and requires DDR5 memory running at 4800 MT/s across four channels.
Will my existing PCIe 4.0 add-in cards work at full speed with the 64 lanes of PCIe 5.0 on this CPU?
Yes, PCIe 5.0 is backward compatible so PCIe 4.0 cards will operate at their rated 4.0 speeds using the available lanes.
How can I verify the CPU is hitting its 4.60 GHz Turbo Boost Max 3.0 frequency after assembly?
Monitor per-core clocks under a single-threaded load with a tool such as Intel XTU or HWiNFO; the hottest core should reach 4.60 GHz.
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