Intel PK8072205512300 Xeon Platinum 8558 48-core 2.1 GHz server processor
48-core server CPU with 96 threads, 2.1 GHz base and 4.0 GHz max turbo, 260 MB L3 cache, LGA 4677 socket, and 80 PCIe 5.0 lanes
- Product nameXeon Platinum 8558
- CPU cores48-Core
- CPU socketLGA 4677
- Maximum turbo clock4.0 GHz
- TDP rating330 W
- Processor codenameEmerald Rapids
- 48 cores and 96 threads handle heavy parallel workloads
- 1 GHz base with 4.0 GHz max turbo adapts to burst demands
- 260 MB L3 cache keeps large data sets close to the cores
- 8 memory channels at 5200 MHz feed bandwidth-hungry applications
- 80 PCIe 5.0 lanes connect high-speed accelerators and storage
Intel Xeon Platinum 8558 48-core server processor
The Intel Xeon Platinum 8558 is a 48-core server processor built on the Emerald Rapids architecture. It runs at a 2.1 GHz base frequency and reaches a 4.0 GHz maximum turbo frequency. The processor supports 96 threads and provides 260 MB of L3 cache. It fits the LGA 4677 socket and has a 330 W thermal design power.
Who this suits and who should look elsewhere
This processor suits operators running heavily threaded workloads on dual-socket platforms that can deliver 330 W of cooling. The 80 PCIe 5.0 lanes and eight memory channels at 5200 MHz support high I/O and memory bandwidth needs. Buyers who need a lower power envelope or a single-socket platform should look elsewhere.
Deciding specification: 330 W thermal design power
The 330 W thermal design power is the single specification that decides whether this is the right part. Your server chassis, power supply and cooling solution must be rated to handle this heat load continuously. If the infrastructure cannot sustain 330 W per socket, the processor will throttle or become unstable.
How it compares
Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.
- Price $3,226.99
- Pricier than about 76% of the 621 comparable items (median $1,561.99).
- CPU cores 48-Core
- Higher than about 77% of the 386 comparable items (median 24).
- Maximum turbo clock 4.0 GHz
- Higher than about 63% 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 Platinum |
| Model name | PK8072205512300 |
| Product name | Xeon Platinum 8558 |
| Performance | |
| Working frequency | 2.1 GHz |
| Processor | |
| CPU cores | 48-Core |
| CPU socket | LGA 4677 |
| Maximum turbo clock | 4.0 GHz |
| TDP rating | 330 W |
| Processor codename | Emerald Rapids |
| CPU threads | 96 |
| Level 3 cache | 260 MB |
| 64-bit capable | Yes |
| Process node | 10 nm |
| Virtualization support | Yes |
| CPU socket scalability | 2S |
| Maximum PCIe lanes | 80 |
| Memory | |
| Supported memory speed | 5200 MHz |
| Max supported memory | 4 TB |
| Channel configuration | 8 Channel |
| Ports & slots | |
| PCIe generation | 5.0 |
| Size & build | |
| Shipping weight | 0.45 kg |
| Package size | 25 × 25 × 6 mm |
| In the box | |
| Included cooler | Not included - Processor Only |
Questions about this item
Does the LGA 4677 socket require a specific heatsink mounting pattern for this 330 W processor?
The LGA 4677 socket uses Intel's standard server mounting holes, but the 330 W TDP means you must use a cooler rated for at least 330 W and confirm the bracket clears the 48-core package.
What BIOS setting is commonly missed when installing the Xeon Platinum 8558 in a dual-socket board?
After seating both CPUs, enable the 2S scalability link in BIOS so the two 8558 processors can share memory and PCIe lanes across the 80 available lanes.
When should the thermal interface material be replaced on this 48-core server CPU?
Replace the thermal paste whenever the heatsink is removed; the 10 nm Emerald Rapids die runs at up to 4.0 GHz turbo, so fresh compound keeps the 330 W heat load under control.
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