Intel Xeon w7-3565X socket: LGA 4677
The Intel Xeon w7-3565X uses LGA 4677, the LGA workstation socket for Sapphire Rapids Xeon W with W790 chipsets, DDR5 RDIMM memory and 112 PCIe Gen5 lanes. The unlocked 32-core chip at 335 W suits expert workstation boards.
- Socket
- LGA 4677
- Launched
- August 2024
- Cores and threads
- 32 and 64
- Base power
- 335 W
- Codename
- Sapphire Rapids
- Segment
- Workstation
- Family
- Intel Xeon W
- Clocks
- 2.5 / 4.8 GHz
Intel Xeon w7-3565X specifications
| Cores | 32 |
|---|---|
| Threads | 64 |
| Core architecture | Golden Cove (P-cores only, chiplet) |
| Clocks | 2.5 GHz base, up to 4.8 GHz boost |
| Cache | 82.5 MB Intel Smart Cache |
| Processor base power (TDP) | 335 W |
| Manufacturing process | Intel 7 (10 nm) |
| Memory support | DDR5-4800 RDIMM with ECC, 8 channels, up to 4 TB |
| PCI Express | PCIe 5.0 x112 |
| Integrated graphics | None |
| Multiplier | Unlocked |
| ECC memory | Yes |
| Package | FCLGA4677 (77.5 by 56.5 mm) |
Motherboard and chipset compatibility
Intel Xeon w7-3565X needs a motherboard with a LGA 4677 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| W790 workstation | W790 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 4677.
LGA 4677 at a glance
| Type | LGA, 4,677 contacts |
|---|---|
| Package size | 77.5 × 56.5 mm |
| Introduced | 2023 |
| Memory | DDR5-4800 Registered DIMMs with ECC, 8 channels up to 4 TB on W-3500 and W-3400, 4 channels on W-2500 and W-2400 |
| Cooler mounting holes | Board specific (workstation heatsink) |
What the Xeon w7-3565X is
The Xeon w7-3565X is a 32-core and 64-thread workstation processor that launched in August 2024 as the unlocked Sapphire Rapids-112L refresh for expert workstations. Thirty-two Golden Cove Performance-cores with Hyper-Threading and no Efficient-cores give 64 threads at 2.5 GHz base and up to 4.8 GHz boost. Cache is 82.5 MB of Smart Cache. Processor base power is 335 W with tuning headroom on X SKUs.
The unlocked X suffix allows multiplier and memory tuning where the W790 board enables it. Eight-channel DDR5-4800 RDIMM up to 4 TB with ECC feeds 32 cores plus multiple GPUs. Up to 112 Gen5 lanes serve GPUs and NVMe RAID from one socket.
Expert rendering and simulation nodes fit here. Thirty-two cores keep large scenes plus builds together. Buyers who need 44 cores for maximum threads should take the Intel Xeon w9-3575X with 97.5 MB cache instead, since this w7 balances tuning with thread count.
Socket and motherboard compatibility
The w7-3565X fits LGA 4677 on W790 expert boards with 335 W delivery. Boards accept W-3400 plus W-3500 refresh SKUs with a BIOS that lists the part. The FCLGA4677 package uses the E1A carrier.
Memory is DDR5-4800 RDIMM with ECC in 8 channels up to 4 TB. XMP-compatible tuning is available on X SKUs where enabled. Population follows 1 or 2 DIMMs per channel.
Expert shoppers compare unlocked W-3500 parts on cores and cache. The w7-3565X trails 44-core flagships on threads. The Socket vs chipset: what decides whether a CPU works guide explains vendor lists.
Memory, PCIe and cooling
DDR5-4800 RDIMM with ECC in 8 channels up to 4 TB is the W-3500 standard. Scenes plus datasets should be sized together. Matched octets are preferred.
PCIe gives 112 Gen5 lanes from the CPU plus 28 chipset lanes for multi-GPU, NVMe and 10 GbE. Fixed splits mean plans must match the manual.
Cooling is workstation 335 W with vendor-qualified liquid or high-flow air. No retail cooler ships with tray supply.
Upgrade paths
LGA allows expert moves within the vendor list, such as to 44-core W-3500 with stronger cooling. Memory and NVMe can also grow. BIOS must support the target.
A working w7-3565X serves expert desks for years with tuning room.
Frequently asked questions
What socket does the Xeon w7-3565X use?
It uses LGA 4677 on W790 expert workstation boards. A BIOS that lists the refresh is required.
Is the Xeon w7-3565X unlocked?
Thirty-two cores and 64 threads at 2.5 GHz base and up to 4.8 GHz boost, with 82.5 MB of cache at 335 W. The multiplier is unlocked.
What memory does the w7-3565X support?
DDR5-4800 RDIMM with ECC in 8 channels up to 4 TB.
Can the w7-3565X be upgraded?
Yes, to higher-core W-3500 parts on the same board where power, cooling and BIOS allow.
Sources and verification
- Intel Xeon W-3500 and W-2500 Sapphire Rapids Refresh lineup table w7-3565X 32 cores (Wccftech)
- Intel Xeon W W790 chipset DDR5 workstations memory lanes (Kingston)
Facts last checked against these sources on . Page last edited on .