Intel Xeon 658X — Specifications

Specifications Benchmarks Synonyms

Specifications

Technical data

Specifications checked against the linked manufacturer source on 2026-09-30.

Official specifications

CPU generation and family

Family
Intel Xeon 6
Name
Intel Xeon 658X
Segment
Workstation

CPU Cores and Base Frequency

Base Frequency
3 GHz
CPU Cores
24
CPU Threads
48
Max. Boost Clock
4.9 GHz

Memory & PCIe

ECC
Yes
Max. Memory
4 TB
Memory channels
8
Memory type
DDR5 RDIMM-6400
PCIe lanes
128

Thermal Management

TDP (PL1 / PBP, legacy combined label)
250 W

Technical details

L3-Cache
144 MB
Official source
https://www.intel.com/content/www/us/en/products/sku/244337/intel-xeon-658x-processor-144m-cache-3-00-ghz/specifications.html
Official specification sheet
https://cdrdv2-public.intel.com/874103/Intel%20Xeon%20600%20Processors%20for%20Workstation%20-%20Product%20Brief_Rev1.pdf
Release quarter
Q1/2026
Socket
FCLGA4710
Verified on
2026-09-30

Positions in all rankings

Common positions Intel Xeon 658X CPU in popular benchmarks, for comparison with other models.

No data

Benchmarks

Performance tests CPU

No benchmark results are available yet. This model is listed with specifications only.

These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted.

Comparable benchmark results are required to suggest performance alternatives.

PL1 is the sustained processor power limit; PL2 is the short-term turbo power limit. They are not measured performance or efficiency.

The values are used to select the optimal cooling system and power supply.

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Intel Xeon 658X