Intel PK8077105931000 Xeon 6 6756E server processor 128-core 1.8 GHz
A 128-core server processor with 1.8 GHz base frequency, 2.6 GHz max turbo and 96 MB cache in an FCLGA 4710 socket
- Product nameXeon 6756E
- CPU cores128-Core
- CPU socketFCLGA 4710
- Maximum turbo clock2.6 GHz
- TDP rating225 W
- Processor codenameSierra Forest
- 128 cores handle massive parallel workloads
- 6 GHz max turbo accelerates burst tasks
- 96 MB L3 cache reduces data latency
- DDR5 6400 support across 8 channels
- 225 W TDP balances density and efficiency
128-Core Xeon 6 6756E for Dense Server Workloads
This Intel Xeon 6 6756E server processor delivers 128 cores and 128 threads at a 1.8 GHz base frequency with a 2.6 GHz max turbo. Built on a 3 nm process, it targets high-density cloud, virtualisation and scale-out workloads where core count and efficiency per watt matter most. The FCLGA 4710 socket and 225 W TDP fit dual-socket platforms designed for rack-scale deployment.
Verify Socket FCLGA 4710
Before ordering, confirm your motherboard uses the FCLGA 4710 socket and provides eight DDR5 channels running at 6400 MT/s to reach the rated 4 TB maximum capacity. The platform must also expose four Intel UPI links at 24 GT/s and PCIe 5.0 lanes for full I/O throughput. BIOS revision and power-delivery capability should match the 225 W thermal design power.
225 W TDP Demands Server-Grade Cooling and Airflow
At 225 W the processor requires a validated server heatsink or liquid cold plate with sufficient mounting pressure for the LGA-4710 package. Fan curves and chassis airflow must be tuned for sustained all-core turbo near 2.6 GHz without thermal throttling. Acoustic output will follow the cooling solution chosen; plan for data-centre noise levels rather than workstation quietness.
How it compares
Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.
- Price $7,638.99
- Pricier than about 91% of the 621 comparable items (median $1,561.99).
- CPU cores 128-Core
- Higher than about 94% of the 386 comparable items (median 24).
- Maximum turbo clock 2.6 GHz
- Lower than about 95% of the 327 comparable items (median 3.9 GHz).
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Specifications
| Product | |
|---|---|
| Brand name | Intel |
| Product line | Xeon 6 |
| Model name | PK8077105931000 |
| Product name | Xeon 6756E |
| Performance | |
| Working frequency | 1.8 GHz |
| Processor | |
| CPU cores | 128-Core |
| CPU socket | FCLGA 4710 |
| Maximum turbo clock | 2.6 GHz |
| TDP rating | 225 W |
| Processor codename | Sierra Forest |
| CPU threads | 128 |
| Level 3 cache | 96 MB |
| 64-bit capable | Yes |
| Hyper-Threading | Yes |
| Process node | 3 nm |
| Virtualization support | Yes |
| CPU socket scalability | 2S |
| Maximum PCIe lanes | 88 |
| Memory | |
| Supported memory speed | DDR5 6400 |
| Max supported memory | 4 TB |
| Channel configuration | 8 Channel |
| Ports & slots | |
| PCIe generation | 5.0 |
| Size & build | |
| Shipping weight | 0.12 kg |
| Package size | 78 × 64 × 57 mm |
| In the box | |
| Included cooler | Not included - Processor Only |
Questions about this item
Does the OEM pack include a cooler or do I need to buy a separate 225 W thermal solution?
The OEM tray contains only the 128-core processor; a server-grade cooler rated for at least 225 W must be purchased separately.
Should I select the 1.8 GHz base or 2.6 GHz max turbo version for dense virtualization?
There is a single 6756E SKU that runs at 1.8 GHz base and boosts to 2.6 GHz; choose it when you need 128 threads and 8-channel DDR5 6400 bandwidth.
How does the 96 MB L3 cache affect real-world database throughput on this 128-core chip?
The shared 96 MB L3 cache feeds all 128 cores, reducing latency for multi-threaded database workloads that fit within the cache footprint.
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